Batteries For E-Bikes Explained
A decent-quality lithium-ion battery tends to be really pricey, sometimes more than all the other components in an e-bike kit. This is why you must buy the appropriate battery for your bike when you embark on the shopping journey. In this post, you can go through all the information needed when selecting a battery meant for your best e-biking experience! Back when I developed an interest in e-bikes and e-bike conversion kits, way back in the ’90s, I noticed a trend in battery prices.
What I discovered was that an average lead-acid electric bike budget battery pack retails for 250. On the other hand, a NIMH pack, which is the gold standard of e-bike batteries, can be sold for up to 1200! This is almost tenfold the before mentioned price of a lead-acid pack…And what do you get? Double the range? I know what is going through your mind…Is it really worth it?
How To Get the Most Value Out of the Battery You Buy?
In order to do this, you want must understand the fundamentals of e-bike batteries before deciding what your requirements are. There is nothing more devastating than having your battery die when you are miles away from home. E-bikes are essentially meant to take away the physical strain out of regular riding.
They allow you to ride further and longer without getting easily fatigued and ensure that you get home without feeling stressed out. It is no surprise that more and more people are integrating e-biking into their daily life schedules.
Range. What Can A Full Charge Provide?
The range estimate is one of the first aspects to look into when discussing batteries used in electric bikes. It’s not uncommon to see that e-bike companies or your chosen salesperson struggle with the terminology. While many of them want to pitch you the best version of events, it’s often clear that the situation is not realistic, it’s a little bit sugarcoated.
Realistically, you get around 20-ish miles of range from a 6 to 8 pound lithium battery when it is completely charged. Don’t always believe what you see on the manufacturer’s website…Some statements are simply exaggerations!
Li-Ion battery weight. 6 to 8 pounds
Range (miles). 20mi (32km)
Until the technology powering e-bike batteries advances further, the general rule of thumb is that lighter batteries provide a shorter range. A battery that weighs between six to eight pounds gives about 20 miles at a speed of 20 mph. Therefore, you shoud aim to determine the actual weight of the source and then calculate the range with that in mind. that is one of the most important numbers to keep in check when you go shopping for e-bike batteries.
Some salesmen will tell you their lithium batteries provide the rider with a range of 100 miles on a single charge, but know that this is not realistic at all, especially for those who don’t want to pedal 99% of the time. However, some e-bike models don’t have handlebar throttles, and instead, they have a pedal sensor that has you pedalling in order to engage with power.
In such a case, the quoted range estimates may be true, especially at power-saving settings. But considering that the rider has to provide human effort by pedaling the bike, which means we are no longer in the “no-pedal range”, which is a different issue altogether.
An e-bike equipped with a handlebar throttle makes the motor engage even when you are not engaging yourself. this will naturally use up more battery power and the consumption will thus be higher. Therefore, you must get to get to know the principles of e-bikes. For instance, a 500w bike doesn’t necessarily use all of its power at all times. If you decide to bike without any motor assistance, your e-bike battery will stand at full capacity until you begin using it as help.
In that case, you can surely bike all day on a single charge, but this is not what e-bikes are for. You need to use the battery power sparingly, but you should be confident in the battery capacity you have. In ordinary circumstances, you’ll see many people riding their electric bikes with as much help and guidance as they can. the throttle is usually set to “max” in those cases. That is when you can only expect to cover 20 miles on an e-bike accompanied by a 6-8lbs battery.
Definition of Terms
What Are Battery Packs?
A battery pack is essentially a set of batteries comprising of a few smaller sources stacked in a combination that gives you optimal power. the amount that your e-bike system runs on. To achieve the best results when biking, you should choose the appropriate battery set for your bike’s application.
Volts and Amps
In simple terms, Voltage is what controls the flow of electric energy whereas Amps refer to a measure of force. Generally, an e-bike with a high voltage rating has better speed, while higher Amps usually bring you more power. Combining these Amps and Volts gives you Watts, which is another important measure.
While shopping for an e-bike battery unit, you’ll begin to notice a lot of info on the packaging. there are many parameters to take into account. This is relevant information that needs to be examined when searching for the appropriate battery pack for your bike. They include:
Amps. They measure volume of the electrons. Methaporically, this measure describes how wide “the flow road” is…And you can understand how many cars (electrons) pass at once.
Volts. Describes the velocity of the electron movement… voltage definitely results in more speed.
Watts. It is a measure dictated by the previous two measurements…Volts Amps = Watts. It’s general physics.
Amp Hours. Although most of the time there are reffered to as “Ah”, you might see different notations elsewhere. In the end, it’s all about the measure of Amps that one battery can work through in an 60 minutes.
Watt-Hours. This measurement talks about how much usable energy one battery has, and the abbreviation is ‘Wh”. This figure, if you manage to find it on the info sheet of a bike battery, can be used to find out how many watts you can get from the battery in an hour.
For example, a 500Wh battery has the ability to deliver 500w for 1 hour or 250w for 2 hours. This is where you make a choice.
One thing to note is that most of the electric bikes on the market don’t use power continuously at an exact level, meaning, the Wh figure doesn’t necessarily translate to ride time because there are too many factors to keep in mind.
However, you’ll notice that a physically bigger battery with greater capacity can give you smaller amounts of power over a long period and have a longer-lasting charge.
Battery energy
Run Time (hours)
Something you want to watch out for; some battery salesmen tend to overstate the facts when discussing range estimates. As such, some due diligence will come in handy before deciding to buy. Make sure to ask questions to find out whether the range promised matches the weight of the bike, and the way it is supposed to be used.
Amper Hours vs Watt Hours
Although it can be confusing, you must try your best to differ the Amp Hours and the Watt Hours. Ah only become significant when you take into account the voltage as well. Wh and Ah can be quite relevant as parameters too (more than voltage for sure) when determining how far you can go when using one charge, so pay more attention to them.
Wh Example: 36v 10ah = 360wh and 48v 10ah = 480wh
Consider a bicycle that has the ability to run multiple batteries. let’s compare the 36v and 48v batteries. The bike will surely run faster when powered by the 48v battery if you decide to engage a full throttle. However, you’ll need probably have to put in more energy to move at this higher speed. Therefore, a 48v battery will not always provide a better range. the 36v pack might do the same.
The bottom line is, with the right information, you can make a more informed decision when buying an e-bike battery.
What is the Best Electric Bike Battery?
Joyisi Ebike Battery. Best Small to Medium Size option
The Joyisi is an electric bike battery with a compact, practical and seamless design that won’t add too much weight to your pre-existing luggage. This is a 48V 10Ah lithium battery offering a range good enough to ensure high performance during your ride. Its carefully produced cells have been fitted with a 30A BMS plate that serves to prevent overcharge, as well as to protect a possible short circuit, making sure that you get a the best possible lifetime for your battery.
The battery itself is encased in a rugged plastic shell that protects it and it also has integrated LED battery level lights so that the rider is aware of the battery level at all times. When in the process of charging, the battery glows in a red hue, while the green color lets you know that it is fully charged. In the package, you’ll also find a 54.6v 2 Amps charger that will usually take about 8 hours to fully charge your battery.
The USB port on the battery helps when your devices are drained. you can easily charge your phone, but also use a safety lock to protect the battery when you’re not using it. Finally, you can rest assured that all possible issues will be fixed as the 1-year warranty is in the deal as well.
UnitPackPower Triangle. Best for Larger Engines, longer range
If you’re looking for a high-capacity battery unit that will pair well with your large e-bike motor, the UnitPackPower Triangle is a great choice to consider. This 52V 20Ah lithium battery was built for high-speed, extended range rides and will be suitable for 500W-1100W bike engines.
The UnitPackPower boasts an exclusive patent design that features a newly-added power switch, as well as a USB port that can charge a phone, tablet, or even speaker during your ride. There is also a battery level light that indicates how much charge is remaining.
To ensure maximum protection from impact and elements, the battery is covered with a private mold hard-plastic case. The high-quality cells inside the pack are also protected with a built-in 30A BMS plate that prevents overcharging and possible short circuits, as well as accidental discharging, and more. The manufacturer further provides a 1-year warranty.
Weight and Size. Things To Check Out When Looking For The Perfect Battery Pack
The right battery for an electric bike needs to not only be lightweight enough but also look good when installed. Unfortunately, you may not find a battery pack that all of the features that you are looking into. you might want to look into those that prioritize the functions important to you.
A mistake that occurs quite often with many e-bike owners is that they always search for the largest battery they can find. The problem is that you might want to mount the battery on your bike in a sturdy way, and it won’t be possible. Even hanging it on the rack or moving it around gets quite complicated.
Generally speaking, if you want to make sure you have the perfect setup, you need to find the smallest unit that will be sufficient for your needs.If you want to be really safe and make sure that everything turns out just the way you want to, try to look for a pack that will deliver twice as much energy when compared to what you need. this will make sure you have what you need on your adventures.
When searching for the ideal battery, the first step should be to figure out what your need are. Most people can’t do more than 15 miles at a time without having some time off. That is why they are often taking breaks between the multiple rides they embark on daily. It is always Smart to have your battery charged as you might need a quick boost when you go for an errand.
Since smaller, lighter batteries charge much quicker and in brief Windows of time, you can go on your errands more relaxed. This will give you more than enough range for every trip you make during your daily commitments.
However, if you use your bike for more functional purposes such as taking your kids to school or pull a trailer/shopping cart of groceries ; it will require you to prioritize size. It means that you’ll need to get a bigger battery and a stronger motor. There are larger capacity batteries out there that will get the job done in such a case.
often than not, a lightweight electric bike tends to be the perfect fit for most people. When riding such a bicycle on a fairly flat trail, with little to no headwind, and on the right tire pressure, expect an average burn rate of 10wh/km. This is true for riders weighing 200lbs or less. While there are factors that may come into play, the 10wh/km burn rate is very realistic.
For the above, you should Consider a 36v 10ah battery pack. This will give you a 360wh of battery (i.e. 36v multiplied by 10ah). In theory, this battery should provide a range of 36km on a full charge. However, very few people manage to realize this as they lack the tools to accurately calculate the capacity of a battery. This is something some vendors might take advantage of.
Voltage (v)
Capacity (ah)
Energy (watt hours)
Voltage
When looking for electric bike kits, it’s useful to find out which voltage range works for the bike you’e buying. As an example, a typical 36 V e-bicycle will require a battery that offers a capacity lingering between 30 V and 42 V. At 42 V, a 36 V battery pack is actually storing as much energy as it can possibly hold, but at 30 V, it has to shut down as soon as possible, and seize producing power before it gets damaged in a non-reversible way. The “36 V” mark is one you’ll often see on batteries, and it is simply the average voltage that particular battery operates on. in books, this is called the nominal voltage.
According to Electric-Find.com, “Nominal Voltage is a nominal value assigned to a circuit or system for the purpose of conveniently designating its voltage class (e.g., 120/240 volts, 480Y/277 volts, 600 volts). The actual voltage at which a circuit operates can vary from the nominal within a range that permits satisfactory operation of equipment. May 28, 2009”
Some electric bicycle kits provide a better operating range, one between 36 V and 48 V. This is very important as a parameter, so make sure you check the voltage when choosing a battery pack. Most e-bikes are fitted with a display to show you the charge percentage or level using LED lights, but this will only work on the stated voltage.
Voltage is the value that gives power. it regulates how many rotation a motor can do in a minute. When you deal with more voltage, you can experience greater speed. With that said, keep in mind that electric motors rotate at a specific RPM and this is determined by its construction, amongst many other things. The application has to be taken in mind as well. To conclude, a 36 V e-bike will befaster if it is powered by a 48 V battery pack. Keep in mind, the battery and the motor itself must be compatible.
Amps
To choose the appropriate battery pack, it’s important to be familiar with the nature of your e-bicycle’s controller. This small gadget can be found on pretty much every e-bicycle. you use it to control the energy exchange between the motor and the battery. This controller regulates something called PMW or Pulse With Modulation.
If your bicycle is completely stationary and you try to turn the throttle to the max, the controller is crucial for you. it will limit the current that your battery provides to the motor and make sure you don’t use it up really quick. If you are wondering why this is so important when choosing the perfect battery pack for you, it’s because it prevents a lot of issues. You need a battery strong enough to produce the needed number of Amps without any overheating, blowing a fuse, or shutting down.
Generally, a 10 Ah battery does well when combined with a controller working on 20 Amps or even a little bit less. As long as the information provided about the controllers is true and accurate, you will be able to find what you are looking for. Keep in mind that some controllers come with “Watt ratings”, whereas others have information on “Max Amps”. this confuses people, but it’s actually not that complicated.
When you find a controller with information in Watts, you should note that this measure means “Maximum watts” or “Continuous watts”, but there is a higher peak. This means that your battery has the ability to safely handle the Max (the so-called peak) whenever needed.
Quality
When determining the quality of a battery pack, keep in mind that you have to discuss the weakest cell inside of it, as well as the durability of the whole product. Back in the day, it was quite rare to find a long-lasting battery pack. If you could find a pack that you could use for about half a year, that itself would be really fantastic. most of them couldn’t sit without self-discharging to their very death. Thankfully, battery technology has come a long way and we have many more options now.
We’ve come to the point where quality is the number one priority for manufacturers of lithium batteries, as one needs to rely on the product. A lot of attention is given to the small, refined details and buying from a reputable, famous seller is good enough of a guarantee that you’re getting a good product. over, as the product became more famous, more restocking has to be done, meaning that you’re getting freshly produced batteries, as well as a warranty to back your investment.
Battery Monitoring Systems and Chargers
Lithium batteries seem to be both durable and lightweight, which makes them ideal for everyday use, but you need to keep in mind that there are limits to every type of use. To make sure you are not sabotaging your battery pack’s lifetime, you must make sue that you battery has a BMS (Battery Monitoring System). This system connects the lithium ion batteries with the power wires and it monitors the voltage as well as the number of amps flowing through the cells.
If it happens so that any limit is reached, the BMS steps in and it cuts off the power. This ensures safety both for you and the battery, and both are equally important. Ideally, the BMS won’t need to regulate what’s going on constantly, just once you’ve used up all the power in the battery and you switch from continuous riding to support. After use, it will shut down the whole electric bike to make sure there is no damage to any part, especially the sensitive battery cells.
The same logic applies to the charger as well,as the BMS will allow charging only if the battery cells are within the proper limits. Overlooking the quality of the charger is probably the number one mistake you can make. The wrong type of charger will easily damage your lithium-ion batteries!
Mounting Your Battery Pack
Installing the Li-ion batteries onto your e-bicycle sometimes seems like a daunting task, but this also depends on the quality and the type of the pack. For your best comfort while biking, you must make sure that the weight is well distributed. the triangle in the front part of the frame is possibly the best mounting location for your battery pack. Meanwhile, the rear rack is more convenient and easy to manage, but it might interfere more with your movement.
Batteries sealed in aluminum cases usually end up being easier to mount, and this type of case also protects the cells inside from impact. Keep in mind that this will add weight and bulkiness to your bike, and it will cost more. The cheaper option, but also the more fragile one, would be a pack covered in simple shrink wrap. It will take care of the vibrations during riding as well as the impact when the bicycle tips over.
Battery Too Small?
It’s not uncommon for this problem to arise! A battery that can power your e-bicycle for about an hour in the worst-case scenario is usually sized appropriately. Batteries of larger capacity will obviously have an easier tiime providing energy when compared to their smaller counterparts. For instance, a 20 Ah battery pack producing 500w continuously runs twice as long when compared to the 10 Ah battery. However, there are always multiple factors that you need to keep in mind, and one of them is the Internal Cell Resistance that each battery cell has. The other is the so-called C rate (C-rate refers to the rate at which a battery is dischargiing).
Converting Your Regular Bicycle into an E-bicycle
It is possible to convert your regular road bicycle into an e-bicycle, and it’s something most people do to avoid the high price tag that comes with acquiring a new battery-powered bicycle. You just need an e-bicycle conversion kit, and you can easily access it via a quick search on the internet. The best e-bicycle conversion kits typically come with components like a motor, the previously discussed controller, as well as a thumb-operated throttle, brake levers with kill switches, on/off switch, as well as a battery in the package.
The installation of these electrical components is straight-forward, as long as you have basic knowledge of bicycle mechanics. Once you’ve finished fitting the motor, switches, and the power source, it will only be a matter of time before you start enjoying some motor-assistance on your once regular bicycle.
If you’re not sure about the best way to convert your bicycle, we provide guides on practical kits for conversion out there, as well as the best e-bicycle motors to use with the battery you’ve chosen for your electric bike. The best thing about kits for e-bicycle conversion is their price; even the priciest ones will cost just a few hundred dollars to acquire.
Taking Care of Your Battery
Appropriate care is very important when you’re making sure that the lifetime of your e-bicycle battery lasts as long as possible. Even if you have a BMS plate to safeguard the source, it’s very important that you continuously charge it. never allow the power to drain completely, this is not a good idea, and it’s a general rule for all types of batteries. Pay extra attention if you live in a cold region, as you don’t want to make the mistake of charging a cold battery pack (even worse if it is frozen). Instead, let it rest at room temperature so it gets warmer, and then charge it after it acclimates.
You can cover it with a rug or any other piece of fabric to get it warm. Riding your bicycle in cold conditions isn’t harmful to the electric battery, but the range might drop slightly, so keep that in mind. To conclude, it is essential you let your battery pack to warm up and reach room temperature before you charge it.
Opportunity Charging
Opportunity charging is a term that describes all charging session that you have not planned in particular. You might decide to take a break somewhere in town and grab a cup of coffee in the middle of your bicycle trip. In that case, you can charge it for a boost while you take a break and get your caffeine boost! This can be of significant help and although it may not fully charge the battery, it will impact the range greatly.
Legal Shipping
Legal shipping is something that needs to be taken in mind when it comes to battery packs. it can be a controversial subject too. When you take into account the amount of energy that is held inside the different battery types, it becomes clear that more regulations are needed. The shipping is guided by various regulations that make for a proper and safe way of packaging and handling them. Reputable and established vendors usually advertise about legal shipping or “UN Certified”.
Unfortunately, this is an expensive affair that could force you to dig a little bit deeper into your s. Smaller vendors won’t ship your battery taking the “UN Certified” approach and they resort to illegal shipping. This makes things quite difficult when it comes to returns, as well as replacements due to personal preferences or warranty violation.
Energy Density
Energy density refers to the quantity of energy one battery stores at a particular volume (Liter/Wh), which is unlike ordinary liquids where one gallon occupies a certain space. That means that two different e-bike batteries, although they are the same size, carry a different amount of usable energy. Let’s go through an example! A classic 18650 lithium battery that has been used a lot in the past decades holds 1000mah, while the exact same 18650 cells store as much as 3500mah with today’s improved technoloogy. Sometimes, they even store more.
It’s worth noting that the two batteries have the same dimensions, and they are practically the same when it comes to size, but the advanced technology the new one has implemented delivers triple the range that the one from 10 years ago could deliver. Energy density is what plays the major role here.
Lead Acid Batteries or Lithium ion Batteries?
Lead is the more price-friendly option when you compare the two, so if a decent lithium battery is out of your price range, you might want to get a lead alternative with somewhat similar parameters. For perspective, a 6lb lithium battery does the same job a 30lb lead-acid pack would do in the same conditions (voltage).
Battery Chemistry
E-bike Batteries and Motors: What You Need to Know
We’ve said it before and we’ll say it again: there’s nothing like the freedom and simplicity of bikes. The simplicity of two tires rolling on and on, scenery sliding by, tires crunching over gravel. We can’t get enough.
But when we discovered the pure fun and adventure of e-bikes, we dove all in without looking back. It’s all the fun and exercise of an analog bike with double, triple, or maybe even quadruple the ground covered. Who can argue that? Our transition from analog riders to pedal assist mountain bike riders was smooth but for one detail: learning all about e-bike batteries and e-bike motors.
Ask any bike manufacturer or retailer and they all might give you a slightly different answer about which motor is best, which battery has the longest life, and what you should choose. So here’s an intro to e-bike batteries and motors to get your head in the right space to make your own decision.
Which battery is best for an electric bike?
The one golden rule: lithium ion batteries far outperform everything else that’s realistically available today. While there’s promising early research showing that sodium-ion batteries could be the future’s battery of choice (even for smartphones and laptops in addition to e-bikes), the safe, time-tested choice for your new e-bike is a high-quality lithium ion battery with Panasonic cells like the QuietKat Jeep E-bike Battery.
Lithium Ion vs. Lead Acid Batteries
Chances are, if you’ve been doing your e-bike research, you’ve come across lead acid batteries as an alternative to the more ubiquitous (and notably more expensive) lithium ion battery.
The main problem: it’s extremely difficult to manufacture a safe, “sealed lead acid” or SLA battery that’s small and light enough to be compatible with the frame of your e-bike. Meaning, the most realistic solution is to mount it on a rear rack or place it in panniers on either side of the rear wheel. While this might fly in town or on pavement commutes, when we start talking about the balance, agility, and lighter weight needed to safely and successfully ride rockier, steeper trails, big, bulky battery packs are simply out of the picture.
How much is an e-bike battery?
The major benefit of a lithium ion battery for your e-bike, besides its better performance and ability to integrate into the frame of your bike, is your ability to easily carry an extra in your pack. On average, a high-quality battery can cost anywhere from 600. 900 depending on the quality and amp hours.
Most new e-bikes (and all QuietKat E-bikes) come with a standard lithium ion battery that neatly clicks into the frame of your bike. But when you’re planning to cover some serious ground, take on lots of elevation gain, or camp in the middle of nowhere with nothing but what you can lash onto your bike (a personal favorite of ours), having an extra battery can make the difference between a successful ride out, or a full-on grind. In short: it’s worth the investment. Pro tip: all e-bikes are slightly different. Make sure your backup battery is designed to integrate with your particular frame.
Lastly, unfortunately e-bike batteries have become a target for thieves because of their high value and ease of transportation. Make sure you’re always keeping an eye on your e-bikes and our recommendation is to remove the battery before you lock your frame up outside in public.
So, you think you’re in the market for a backup battery, but first you want to know…
How long does an e-bike battery last?
Although there are confounding variables that affect the lifespan of an average lithium ion battery, like elevation gained, and conditions (it’s much harder to pedal through ice, snow, and mud, than it is to pedal over hard-packed, smooth dirt) it’s safe to assume that top-of-the-line, fully charged lithium ion battery like the QuietKat Apex 1500W Battery with 52V (volts) and 17.5AH (amp hours) can get you up to an additional 50 miles on your bike when in eco-mode and using pedal-assist.
And if you have an easier time understanding battery power in watt hours, simply multiply volts by amp hours. The above example, with 52V and 17.5AH gives you 910 watt hours.
Finally, let’s talk e-bike motors
The first time you ever hop on an e-bike and feel the motor kick in, propelling you forward and throwing your torso back is absolutely unforgettable. Here’s how it works:
Crack your motor open (we don’t recommend doing it—you’d completely ruin it—but it’s interesting to search on YouTube) and you’ll see the stator: a bunch of wires wound around a circular series of poles that becomes an electromagnet when current enters the motor controller from the battery.
You’ll also see a series of magnets near to or inside the stator. That’s the rotor. To completely simplify, the reaction caused by the interaction of the stator’s electromagnet and the magnets in the rotor—when current is introduced—is the sensation you feel when the e-bike lunges forward with your pedal stroke.
But, what does this mean for you? The principles stay the same, but not all e-bike motors are created equal. Take some time to do your research, digging up articles like this one to fully weigh your options before pulling the trigger.
Ebike Battery Voltage Chart
E-bike batteries are an essential part of electric bicycles, supplying the power required to move the bike. The voltage of an e-bike battery is an important factor that can impact its range and performance. A higher voltage battery typically has a longer range and can provide more power to the motor, while a lower voltage battery may have a shorter range and struggle to power the motor effectively.
Aside from affecting range and power, the voltage of an e-bike battery can also impact the speed of the bike. A higher voltage battery may allow the bike to reach higher speeds, while a lower voltage battery may result in slower speeds. This is because the motor of an e-bike relies on the voltage of the battery to determine how much power it can draw. Therefore, if you are looking for a fast e-bike, you may want to consider a battery with a higher voltage.
E-bike batteries can be lithium-ion or lead-acid, with lithium-ion being the more popular choice due to their lighter weight and higher energy density. However, lead-acid batteries are often more affordable and have a longer lifespan. The type of battery you choose will also impact the weight of your e-bike, as well as the cost and maintenance requirements.
The voltage of an e-bike battery is an important factor to consider when choosing an electric bicycle. A higher voltage battery can provide a longer range and more power, but may also come with a higher price tag. It is important to weigh the benefits and drawbacks of different voltage options and choose the one that best fits your needs and budget.
What is an Ebike Battery Voltage?
The voltage of an e-bike battery is a measure of the electrical potential difference between the positive and negative terminals of the battery. It is usually expressed in volts (V) and determines the amount of power that the battery can provide to the motor of the e-bike. The voltage of an e-bike battery can range from as low as 24V to as high as 72V and plays a significant role in the range and performance of the electric bicycle. A higher voltage battery will generally have a longer range and provide more power to the motor, while a lower voltage battery may have a shorter range and struggle to power the motor effectively.
How do I know what voltage my eBike battery is?
There are a few ways to determine the voltage of your e-bike battery:
- Check the manufacturer’s specifications: The voltage of your e-bike battery should be listed in the manufacturer’s specifications or documentation that came with the bike.
- Check the battery itself: The voltage of the battery may be printed on the battery itself or on the label attached to it.
- Check the battery charger: The voltage of the battery is often also listed on the battery charger, as the charger is designed to work with a specific voltage range.
- Measure the voltage with a multimeter: If you have a multimeter, you can measure the voltage of the battery by connecting the multimeter to the battery terminals.
It is important to know the voltage of your e-bike battery as it can impact the range and performance of the bike.
Voltage Chart for different types of ebike batteries
The voltage of an e-bike battery is an important factor that determines its range and performance. The voltage of an e-bike battery is usually expressed in volts (V) and can range from as low as 24V to as high as 72V. Here is a rough guide to the voltage range of different types of e-bike batteries:
- 24V e-bike batteries: These are low voltage batteries that are typically used in entry-level or children’s electric bikes. They have a shorter range and may struggle to power the motor effectively, but they are often more affordable and have a longer lifespan.
- 36V e-bike batteries: These are mid-range voltage batteries that are commonly used in mid-level electric bikes. They have a longer range and can provide more power to the motor than 24V batteries, but they may not be suitable for high-performance or high-speed e-bikes.
- 48V e-bike batteries: These are high voltage batteries that are often used in high-performance or high-speed electric bikes. They have a longer range and can provide more power to the motor than lower voltage batteries, but they may also be more expensive and have a shorter lifespan.
- 60V and 72V e-bike batteries: These are very high voltage batteries that are typically used in high-performance or off-road electric bikes. They have a very long range and can provide a lot of power to the motor, but they are also the most expensive and have the shortest lifespan of all the options.
It is important to choose the right voltage for your e-bike battery to ensure that it meets your performance and range needs. A higher voltage battery may be more expensive, but it may also provide a longer range and more power to the motor. On the other hand, a lower voltage battery may be more affordable, but it may have a shorter range and struggle to power the motor effectively.
Volt Ebike Battery Chart
| Voltage | Capacity |
| 42.0V | 100% |
| 40.8V | 90% |
| 39.6V | 80% |
| 38.4V | 70% |
| 37.2V | 60% |
| 36.0V | 50% |
| 34.8V | 40% |
| 33.6V | 30% |
| 32.4V | 20% |
| 31.2V | 10% |
Here is a table that shows some common characteristics of 36V e-bike batteries, including capacity:
| Voltage | 36V |
| Capacity | The capacity of a 36V e-bike battery is typically measured in amp-hours (Ah). A higher capacity battery will generally have a longer range, but it may also be heavier and more expensive. |
| Range | The range of a 36V e-bike battery will depend on various factors, including the capacity of the battery, the power of the motor, the terrain, and the rider’s weight. |
| Power | A 36V e-bike battery can provide a moderate amount of power to the motor, which may be suitable for mid-level electric bikes. |
| Compatibility | 36V e-bike batteries are compatible with electric bikes that are designed to use this voltage range. |
| Price | 36V e-bike batteries are generally more affordable than higher voltage options, but they may also have a shorter lifespan. |
| Weight | The weight of a 36V e-bike battery will depend on the capacity and type of the battery. Lithium-ion batteries are typically lighter than lead-acid batteries. |
| Maintenance demands | The maintenance demands of a 36V e-bike battery will depend on the type of battery. Lead-acid batteries may require more frequent maintenance, such as topping up the electrolyte levels. |
Keep in mind that this is just a rough guide, and the actual characteristics of a 36V e-bike battery may vary depending on the specific model and manufacturer.
Volt Ebike Battery Chart
48V Battery Chart
| Voltage | Capacity |
| 54.6V | 100% |
| 53.0V | 90% |
| 51.5V | 80% |
| 49.9V | 70% |
| 48.4V | 60% |
| 46.8V | 50% |
| 45.2V | 40% |
| 43.7V | 30% |
| 42.1V | 20% |
| 40.6V | 10% |
| Voltage | 48V |
| Range | The range of a 48V e-bike battery will depend on various factors, including the capacity of the battery, the power of the motor, the terrain, and the rider’s weight. |
| Power | A 48V e-bike battery can provide a high level of power to the motor, which may be suitable for high-performance or high-speed electric bikes. |
| Compatibility | 48V e-bike batteries are compatible with electric bikes that are designed to use this voltage range. |
| Price | 48V e-bike batteries are generally more expensive than lower voltage options, but they may also have a longer lifespan. |
| Weight | The weight of a 48V e-bike battery will depend on the capacity and type of the battery. Lithium-ion batteries are typically lighter than lead-acid batteries. |
| Maintenance demands | The maintenance demands of a 48V e-bike battery will depend on the type of battery. Lead-acid batteries may require more frequent maintenance, such as topping up the electrolyte levels. |
72 Volt eBike Battery Voltage Chart
Here is a table that shows some common characteristics of 60V and 72V e-bike batteries:
| Voltage | 60V or 72V |
| Range | The range of a 60V or 72V e-bike battery will depend on various factors, including the capacity of the battery, the power of the motor, the terrain, and the rider’s weight. |
| Power | A 60V or 72V e-bike battery can provide a very high level of power to the motor, which may be suitable for high-performance or off-road electric bikes. |
| Compatibility | 60V and 72V e-bike batteries are compatible with electric bikes that are designed to use this voltage range. |
| Price | 60V and 72V e-bike batteries are generally the most expensive options, but they may also have the longest lifespan. |
| Weight | The weight of a 60V or 72V e-bike battery will depend on the capacity and type of the battery. Lithium-ion batteries are typically lighter than lead-acid batteries. |
| Maintenance demands | The maintenance demands of a 60V or 72V e-bike battery will depend on the type of battery. Lead-acid batteries may require more frequent maintenance, such as topping up the electrolyte levels. |
Keep in mind that this is just a rough guide, and the actual characteristics of a 60V or 72V e-bike battery may vary depending on the specific model and manufacturer.
volt ebike Battery Voltage Chart
| Voltage | Capacity |
| 25.77V | 100% |
| 25.56V | 90% |
| 25.31V | 80% |
| 25.02V | 70% |
| 24.81V | 60% |
| 24.45V | 50% |
| 24.21V | 40% |
| 23.91V | 30% |
| 23.61V | 20% |
| 23.40V | 10% |
Here is a table that shows some common characteristics of 24V e-bike batteries:
| Voltage | 24V |
| Range | The range of a 24V e-bike battery will depend on various factors, including the capacity of the battery, the power of the motor, the terrain, and the rider’s weight. |
| Power | A 24V e-bike battery can provide a low level of power to the motor, which may be suitable for entry-level or children’s electric bikes. |
| Compatibility | 24V e-bike batteries are compatible with electric bikes that are designed to use this voltage range. |
| Price | 24V e-bike batteries are generally the most affordable options, but they may also have the shortest lifespan. |
| Weight | The weight of a 24V e-bike battery will depend on the capacity and type of the battery. Lithium-ion batteries are typically lighter than lead-acid batteries. |
| Maintenance demands | The maintenance demands of a 24V e-bike battery will depend on the type of battery. Lead-acid batteries may require more frequent maintenance, such as topping up the electrolyte levels. |
Benefits of a higher Ebike Battery Voltage
There are several benefits to using a higher voltage battery for your e-bike:
- Longer range: A higher voltage battery will generally have a longer range, as it can store more energy and provide more power to the motor. This can be particularly useful if you plan to use your e-bike for long distance rides or if you live in an area with hilly terrain.
- power: A higher voltage battery can provide more power to the motor, which can be useful for high-performance or high-speed electric bikes. This can allow you to reach higher speeds and climb steep hills more easily.
- Better performance: A higher voltage battery may also result in better overall performance of the e-bike, as it can supply the motor with more power when needed. This can make the ride smoother and more enjoyable.
- Longer lifespan: Some higher voltage batteries may also have a longer lifespan, as they are less prone to degradation due to overloading or overheating.
However, it is important to keep in mind that higher voltage batteries may also come with some drawbacks, such as a higher price tag and a heavier weight. It is important to weigh the benefits and drawbacks of different voltage options and choose the one that best fits your needs and budget.
How to Choose the Right Ebike Battery for Your Needs
Here are a few factors to consider when choosing the right e-bike battery:
- Voltage: The voltage of the battery is an important factor that determines its range and performance. A higher voltage battery will generally have a longer range and provide more power to the motor, but it may also be more expensive and have a shorter lifespan.
- Capacity: The capacity of the battery is typically measured in amp-hours (Ah) and determines how much energy the battery can store. A higher capacity battery will generally have a longer range, but it may also be heavier and more expensive.
- Compatibility: It is important to choose a battery that is compatible with your e-bike. This includes the voltage range and the size and shape of the battery. Using an incompatible battery could damage the bike or void the warranty.
- Weight: The weight of the battery can be an important factor, particularly if you plan to carry the battery with you on your rides. Lithium-ion batteries are typically lighter than lead-acid batteries, but they may also be more expensive.
- Maintenance demands: The maintenance demands of the battery can vary depending on the type of battery. Lead-acid batteries may require more frequent maintenance, such as topping up the electrolyte levels, while lithium-ion batteries are generally low maintenance.
What is the lifespan of an e-bike battery?
The lifespan of an e-bike battery can vary depending on a number of factors, including the type of battery, the quality of the battery, and how it is used and maintained.
Lead-acid batteries, which are the most common type of e-bike battery, generally have a lifespan of around 500 to 800 charge cycles. This can translate to 1 to 3 years of use, depending on how frequently the battery is charged and discharged.
Lithium-ion batteries, which are increasingly popular in e-bikes, have a longer lifespan than lead-acid batteries. They can last for 1000 to 2000 charge cycles, or 3 to 5 years of use. However, lithium-ion batteries are also generally more expensive than lead-acid batteries.
It is important to note that the lifespan of an e-bike battery can be affected by how it is used and maintained. For example, charging the battery to 100% or letting it discharge completely can shorten its lifespan. It is generally recommended to charge the battery to around 50% to 70% to extend its lifespan.
How to charge your e-bike battery to make it last longer?
Here are a few tips to help extend the lifespan of your e-bike battery:
- Avoid fully discharging the battery: It is generally recommended to avoid discharging the battery completely, as this can shorten its lifespan. If possible, try to keep the battery charged to at least 50% to 70%.
- Charge the battery regularly: It is a good idea to charge the battery after every ride, or at least once a week if the bike is not used frequently. This helps to prevent the battery from fully discharging and keeps it in good condition.
- Avoid extreme temperatures: Exposure to extreme temperatures can shorten the lifespan of an e-bike battery. It is best to store the battery in a cool, dry place and avoid leaving it in direct sunlight or in a freezing car trunk.
- Use a quality charger: A quality charger that is compatible with your e-bike battery can help extend its lifespan. Make sure to use the charger that was supplied with the battery or a charger that is specifically designed for the battery.
- Follow the manufacturer’s instructions: It is important to follow the manufacturer’s instructions for charging and maintaining the battery to ensure that it lasts as long as possible. This includes using the correct charging voltage and avoiding overcharging the battery.
How to Check LiFePO4 Battery Capacity
Lithium iron phosphate (LiFePO4) batteries are a type of lithium-ion battery that are commonly used in e-bikes. Here are a few ways to check the capacity of a LiFePO4 battery:
- Use a battery management system (BMS): Many LiFePO4 batteries come with a built-in battery management system (BMS) that can provide information about the battery’s capacity. The BMS may display the capacity in percentage or in amp-hours (Ah).
- Use a multimeter: You can use a multimeter to measure the voltage of the battery and calculate its capacity. To do this, you will need to discharge the battery to a specific point (such as 10% capacity) and measure the voltage. Then, you can use a voltage-capacity chart to estimate the capacity of the battery.
- Use a battery tester: There are specialized battery testers available that can provide more accurate information about the capacity of a LiFePO4 battery. These testers may be more expensive, but they can provide more detailed and accurate results.
Keep in mind that the capacity of a LiFePO4 battery can vary depending on how it is used and maintained. Overcharging, discharging too low, or exposing the battery to extreme temperatures can all affect its capacity.
Should I charge my ebike battery after every ride?
It is generally a good idea to charge your e-bike battery after every ride, or at least once a week if the bike is not used frequently. This helps to keep the battery charged and in good condition.
However, it is not necessary to charge the battery immediately after every ride. It is generally safe to let the battery discharge to around 50% to 70% before recharging it. This can help extend the lifespan of the battery by avoiding overcharging and reducing the number of charge cycles.
It is also important to use a quality charger that is compatible with your e-bike battery to avoid damaging the battery. Follow the manufacturer’s instructions for charging the battery to ensure that it is charged safely and efficiently.
Can I leave my ebike plugged in overnight?
It is generally safe to leave your e-bike battery plugged in overnight as long as you are using a quality charger that is compatible with the battery. Most e-bike batteries are designed to stop charging when they reach full capacity, so there is little risk of overcharging the battery.
However, it is generally a good idea to avoid leaving the battery plugged in for extended periods of time if you are not using the bike. This can help extend the lifespan of the battery by reducing the number of charge cycles.
It is also important to use a charger that is specifically designed for your e-bike battery to avoid damaging the battery. Follow the manufacturer’s instructions for charging the battery to ensure that it is charged safely and efficiently.
What does 36v 10Ah mean?
36V 10Ah refers to the voltage and capacity of an e-bike battery. The voltage of the battery is 36V, which indicates the potential difference between the two terminals of the battery. The capacity of the battery is 10Ah, which stands for 10 amp-hours. The capacity of a battery is a measure of how much energy it can store and is typically expressed in amp-hours or milliampere-hours (mAh).
In this case, a 36V 10Ah battery has a voltage of 36V and a capacity of 10Ah. This means that the battery is capable of providing a potential difference of 36V and can store and supply up to 10 amps of current for 1 hour, or a lesser amount of current for a longer period of time.
Keep in mind that the actual performance of the battery may vary depending on various factors, such as the type of battery, the quality of the battery, and how it is used and maintained.
How long will a 48V 10Ah battery last?
The actual lifespan of a 48V 10Ah battery will depend on various factors, such as the type of battery, the quality of the battery, and how it is used and maintained. It is not possible to provide a precise estimate without more information.
In general, a 48V 10Ah battery can provide a high level of power to the motor and has a relatively large capacity, which may be suitable for long distance rides or off-road electric bikes. However, the actual range of the battery will depend on various factors, such as the power of the motor, the terrain, and the rider’s weight.
It is also important to note that the capacity of a battery can degrade over time, particularly if the battery is not used and maintained properly. It is generally a good idea to charge the battery after every ride, or at least once a week if the bike is not used frequently. This can help extend the lifespan of the battery by avoiding overcharging and reducing the number of charge cycles.
Final Words
E-bike battery voltage is an important factor that determines the range and performance of the battery. A higher voltage battery will generally have a longer range and provide more power to the motor, but it may also be more expensive and have a shorter lifespan. On the other hand, a lower voltage battery may have a shorter range and less power, but it may also be more affordable and have a longer lifespan.
It is important to choose a battery that is suitable for your e-bike and your needs. This includes considering the voltage, capacity, compatibility, weight, and maintenance demands of the battery. By selecting the right battery, you can ensure that your e-bike has the range and performance you need and that the battery lasts as long as possible.
Electric Bike Batteries
The batteries are arguably the most important aspect of any electric bike. The kicker is that many electric bike manufacturers don’t give you the full information you need to truly understand what you’re purchasing. We’re offering this information so that you can know what you’re getting into before you buy because the batteries are going to affect your range, your power, your ability to climb hills and mountains, your charging time and the overall weight of the bike. Let’s dive in!
Battery Capacity
If you’re shopping for an electric bike, battery capacity is your new best friend. Truly, this is going to determine a TON about how much you enjoy your new ride. So grab that pen and paper, roll up your sleeves and get ready to be a battery capacity wizard.
Really, battery capacity is simple, so long as you have one formula. Here it is:
Wh = V x Ah (Watt-hours = Volts multiplied by Amp-Hours)
Watt-hours tell the full story of how much energy your battery can store. watt hours means you can go further per charge.
As your battery gets larger, it of course becomes heavier and more expensive. The goal for any electric vehicle is to maximize onboard energy (watt-hours) and minimize cost and weight.
Battery Lifespan
Lithium batteries have a significantly longer lifespan than older lead-acid and nickel-based batteries. In the state of the electric bike industry, it’s more likely that a limited lithium battery lifespan is not due to a short cycle life, but is instead caused by a complete battery failure due to poor quality control in the manufacturing process. So, above all, be sure that you’re buying a bike that’s equipped with a high-quality battery. Just because it’s lithium, doesn’t mean it’s high-quality.
The battery’s lifespan is rated in cycles. One full cycle is a complete discharge and recharge of a battery. A half cycle is a half discharge and recharge. Cycles, however, only tell part of the story. Let’s take a bit deeper look at how we can best estimate and maximize a battery’s lifespan.
First, it’s important to note that if a battery is rated for 1000 cycles, it’s not going to fall dead on its face when it hits that 1000th cycle. Most manufacturers rate their batteries to 80% of their initial capacity. For instance, if the battery is rated for 1000 watt-hours when it’s new, its total stored energy will slowly degrade over time, and on its 1000th cycle, it should have around 800 watt hours of capacity (80% of the energy it had when new). It’s still perfectly fine and safe to use the battery past the 1000th cycle, this rating just sets an expectation for the aging of your battery.
As hinted at earlier, cycles only tell half of the story. The other important half is the overall range of your battery. Let’s take a look at an example:
1000 cycles and 30 miles of range, expected miles to 80%: 30,000 miles
700 cycles and 100 miles of range, expected miles to 80%: 70,000 miles
As you can see from the example above, although Bike A has a battery that lasts for more cycles, Bike B will travel over twice the mileage before the battery begins showing its age. This is another reason why a larger battery is a big advantage on any electric vehicle.
The enemy of a long life for your battery is heat. Store your bike in a cool place whenever possible, and on lower performance batteries, it’s a good practice to not charge immediately after your ride, but to let your batteries have a bit of time to cool down before charging.
Battery Types
Lithium Ion
Lithium Ion is a general term for a battery that uses lithium in its chemistry. The actual chemical composition, more specifically, can be broken into three categories in regard to its use in electric bikes.
This is often abbreviated as LiPo (pronounced “lie-poh”). This is the most power dense battery, and also has the unique characteristic of being able to manipulate it’s form. Because of these two characteristics it is found in almost every cell phone, laptop etc. This is the battery used in both the Alpha and Horizon.
This is often abbreviated as Li-Mn.
This is often abbreviated as LiFe or LiFePO4.
Similarly to Nickel Cadmium, they don’t perform especially well in regard to Rapid discharge. They don’t carry the same “memory” characteristics as Nickel Cadmium, but given the lithium alternatives, you’re most likely better off going for a more power dense lithium battery.
This is often abbreviated as NiCad. These guys aren’t really well suited for electric bikes because their chemistry doesn’t allow for Rapid discharge. You’ve probably hear of battery “memory”. That doesn’t apply to most batteries, but it does apply to Nickel Cadmium, which means that you would want to fully charge and fully discharge them every time, which doesn’t really make a ton of sense for an electric bike application. The last nail in the coffin for these guys is that they’re pretty toxic at the end of their lifecycle and most landfills won’t even take them. Bottom line. you pretty much don’t want to use them.
Lead acid batteries are comparatively heavy to the other batteries listed here. Another way to say this is that they are not as “power dense”, meaning that for a given weight and volume, they have less power than batteries of other chemistry’s. This is the same type of battery that you would find in most cars. Because of that, they are widely available, however they would not be the ideal choice for an electric bike. Despite this, they are still frequently used in many Asian countries for electric bikes. Another point to note with Lead Acid batteries is that they “sag” significantly under load. In other words, if you suddenly nail the throttle the voltage is going to momentarily drop significantly.
Battery technology is become increasingly wide-spread thanks to consumer electronics such as phones and computers that demand lightweight powerful batteries. This is resulting in serious amounts of cash being put into Research and Development to improve the technology, the manufacturing process, and also reduce the cost by increasing the quantity. Several times a year we’ll hear about the latest “breakthrough” in battery technology. Be discerning if you come across articles that claim things like this. Don’t get me wrong, we’re all about innovation in regard to batteries, but you have to keep in mind that lab tests are not equivalent to real world testing, and that it takes time for any new technology to make it from a prototype to a consumer. We keep a close eye on this industry constantly, and we’ll update this page with any new applicable battery as it becomes available.
Click the links below to learn more:
Electric Bike Battery Types
There are a few different battery technologies on the market that are suitable for electric bikes. In this blog post, we will compare and contrast the most popular electric bike battery types: lithium-ion LiFePO4, NCM, and NCA batteries, lead-acid, nickel-cadmium, and nickel-metal hydride. We will discuss the pros and cons of each technology, as well as their suitability for e-bikes. By the end of this post, you will have a good understanding of which electric bike battery technology is best for your needs!
Electric bike battery types
Voltage (V)
Voltage is used to describe the rate at which electrons move, an increased voltage means more speed. It is also called volts. The ideal rating for an electric bike battery is 36-48V.
Capacity – Ampere per hour (Ah)
The quantity of energy that can be in a battery cell is known as its capacity. It is the most vital feature of any battery, and the unit of measurement is ampere-hour (Ah). The Ampere per hour is an electrical charge unit with dimensions of electric current versus time. It indicates the capacity of the battery. A 15Ah battery can discharge 1.5A constantly for ten (10) hours or 15A continuously for an hour.
Discharge rate (C)
The max discharge rate of a cell is the highest current that the cell can be safely discharged at. However, The max discharge rate of a pack must be lower than a cell discharge.
For example, a battery pack with 10S1P. The maximum discharge rate of the cell is 10A. Then, the maximum discharge rate of a pack must be lower than 10A.
Lithium-ion batteries
Lithium-ion batteries for e-bikes are becoming more popular as technology improves. Li-ion batteries do not require regular maintenance. Lithium-ion batteries include lithium manganese batteries, lithium-ion polymer batteries, NCA, NCM, LiFePO4, etc.
Lithium-ion batteries offer several advantages, but they also have some drawbacks that you should be aware of before making your decision. Weigh up the pros and cons to decide whether a lithium-ion battery NCM and NCA is right for you.
Advantages of lithium-ion batteries NCM and NCA
Lithium-ion batteries NCM and NCA are one of the most popular types of batteries for e-bikes.
High capacity
Lithium-ion batteries have a high capacity, meaning that they can store more energy than other types of batteries. This makes them suitable for applications where long run times are required.
Weight and size
Lithium-ion batteries are also the lightest weight option, making them ideal for use in LEVs. Lithium-ion batteries are also small in size and mass, making them easy to integrate into a wide range of LEVs.
No “memory” effect
Li-ion batteries also do not have a “memory” effect, meaning that they do not need to be regularly discharged to maintain their capacity.
Low self-discharge
Li-ion batteries also have a low self-discharge rate, meaning that they lose less capacity when not in use.
Possibility of fast charging
Li-ion batteries can also be fast-charged, meaning that you can get back on the road more quickly after a long journey.
Lots of charge/discharge cycles
Lithium-ion batteries also have a long lifespan and can be charged and discharged many times without losing their capacity. Additionally, they are not damaged by being discharged and recharged frequently, as some other types of batteries are.
High energy density
Li-ion batteries have a high energy density, meaning that they can store a lot of energy in a small space. This makes them ideal for applications where weight and size are critical, such as in LEVs.
Disadvantages of lithium-ion battery
High price of lithium batteries
The main disadvantage of lithium-ion batteries is their cost. They are currently much more expensive than other types of batteries.
Sensitive to low temperatures
Lithium batteries can also be damaged by extreme temperatures, so they may not be suitable for use in very cold climates.
Advantages of lithium-ion batteries LiFePO4
LiFePO4 batteries offer several advantages over other e-bike battery technologies, making them an attractive option for LEVs.
Advantages of LiFePO4 batteries
Low price
LiFePO4 batteries are not expensive as other li-ion batteries.
No “memory” effect
LiFePO4 batteries do not have a “memory” effect, meaning that they do not need to be regularly discharged to maintain their capacity.
Low self-discharge
LiFePO4 batteries have a low self-discharge rate, meaning that they retain their charge for longer than other types of batteries.
Lots of charge/discharge cycles
LiFePO4 batteries have a high number of charge/discharge cycles, meaning that they will last for a long time before needing to be replaced. than 2500 cycles for LiFePO4 and around 500-1000 cycles for NCM, and NCA.
Possibility of fast charging
LiFePO4 batteries can be charged using a fast-charging method, which can be useful for applications where quick charging is required.
LiFePO4 is safe because they use organic materials instead of the flammable liquids found in other types of batteries. This makes them less likely to catch fire or explode if there is an accident.
Disadvantages of lithium iron phosphate batteries
Low energy density
LiFePO4 batteries have a low energy density, meaning that they cannot store as much energy in a given space. This makes them less suitable for applications where weight and size are critical, such as in LEVs.
Heavier than other li-Ion
LiFePO4 batteries are also heavier than other lithium-ion batteries, making them less suitable for applications where weight is a critical factor.
Despite the disadvantages of lithium-ion battery technology, it is still the most popular choice for light electric vehicles such as e-bikes and scooters. This is because the advantages of lithium-ion battery technology outweigh the disadvantages.
If you are considering an e-bike, lithium-ion batteries are worth considering.
Lead-acid batteries
Lead-acid batteries are one of the types of all the types of electric bike battery types available. They are affordable but they are also heavy and not as energy-dense as other options. Lead-acid batteries are not as environmentally friendly as others, but they can be recycled.
Advantages of lead-acid batteries
Lead-acid batteries have some advantages over other e-bike batteries.
Lead-acid batteries are very rugged and can withstand a fair amount of abuse.
Lead-acid batteries are the cheapest compared to other electric bike battery technologies.
Well-suited for high-discharge applications
Lead-acid batteries are well-suited for high-discharge applications such as electric cars.
High current density
Lead-acid batteries have a high current density, which means they can provide a lot of power for their size.
Work temperature range
Lead-acid batteries have a wide temperature range and can operate in both hot and cold climates.
Disadvantages of lead–acid batteries
Lead-acid batteries also have some disadvantages that should be considered.
Heavy battery
Lead-acid batteries are one of the heaviest types of batteries, which can negatively impact the range and performance of LEVs.
Low energy density
Lead-acid batteries are also not as energy-dense as lithium-ion options, lead-acid batteries also have a relatively low cost per kWh.
Deep discharge can damage
Lead-acid batteries cannot be discharged below 50% without damaging the cells.
High self-discharge
Lead-acid batteries also have a high self-discharge rate of about 20% per month.
Nickel-cadmium batteries
Nickel-cadmium batteries are the type of battery used in small LEVs, such as scooters. They are rugged and can operate in a wide range of temperatures, making them good for use in outdoor applications. However, they require special disposal procedures due to their toxicity.
Advantages of nickel-cadmium batteries
Nickel-cadmium batteries are one of the most affordable types of electric bike batteries on the market.
High power density
Nickel-cadmium batteries have a high-power density, which makes them good for use in small LEVs.
Work in a wide temperature range
Nickel-cadmium batteries can operate in a wide range of temperatures, making them suitable for outdoor applications.
Possibility of fast charging
Nickel-cadmium batteries can be fast-charged, meaning that they can be recharged in a shorter time than other electric bike battery technologies.
Disadvantages of nickel-cadmium batteries
Nickel-cadmium batteries have several disadvantages that make them unsuitable for many applications, including e-bikes.
High degree of self-discharge
Nickel-cadmium batteries have a high self-discharge rate, meaning that they lose their charge very quickly when not in use. This can be a problem for applications where the battery will not be used for extended periods of time, such as in light electric vehicles.
“Memory” effect
Nickel-cadmium batteries suffer from the “memory” effect, which means that they lose capacity if they are not regularly fully discharged.
Large size
Nickel-cadmium batteries are usually much larger and heavier than other battery technologies, making them unsuitable for applications where weight and size are important considerations.
Toxicity if disposed of incorrectly
Nickel-cadmium batteries contain poisonous heavy metals such as cadmium and mercury, which can pose environmental hazards if the batteries are not disposed of properly.
Low energy density
Nickel-cadmium batteries also have a low energy density compared to other electric bike battery technologies.
In conclusion, nickel-cadmium batteries are not the best choice for powering e-bikes.
Nickel-metal-hydride batteries
Nickel-metal-hydride batteries are another rechargeable electric bike battery types that have been used in LEVs. These batteries have a higher energy density than lead-acid batteries, which means that they can store more energy per unit of weight. However, they also tend to be more expensive.
Nickel-metal-hydride batteries are not as widely used in LEVs, but they offer some advantages in terms of performance and cost.
Advantages of nickel-metal-hydride batteries
Nickel-metal-hydride batteries are one of the most affordable types of batteries on the market. This makes them a good choice for applications where cost is an important consideration.
High capacity
Nickel-metal-hydride batteries have a high capacity, meaning that they can store more energy than other types of batteries. This makes them suitable for applications where long run times are required.
Low toxicity
NiMH batteries are that they do not contain heavy metals, such as lead or cadmium, which are harmful to the environment.
Work in a wide temperature range
NiMH batteries can operate in a wide range of temperatures, making them suitable for use in a variety of climates.
Disadvantages of nickel-metal-hydride batteries
Nickel-metal-hydride batteries have several disadvantages when compared to other battery technologies.
High degree of self-discharge
NiMH batteries have a high self-discharge rate, meaning that they lose their charge very quickly when not in use.
Slow charging
NiMH batteries take a long time to charge, which can be a problem for applications where quick charging is required.
Few charge/discharge cycles
NiMH batteries have a limited number of charge/discharge cycles, meaning that they will eventually need to be replaced.
Mild “memory” effect
NiMH batteries also have a milder “memory” effect than nickel-cadmium batteries, meaning that they need to be regularly discharged about every two months to maintain their capacity. Li-ion batteries don’t have a ”memory” effect.
Not as energy-dense as li-ion
NiMH is not as energy-dense as lithium-ion batteries, meaning that they cannot store as much energy in a given space. This makes them less suitable for applications where weight and size are critical, such as in e-bikes.
Electric bike battery types conclusion
No matter which type of battery you choose, it is important to make sure that it is compatible with your e-bike. Be sure to consult with a qualified technician to find the best option for you. Our Tritek specialists are eager to help you with your battery needs.
Tritek is a professional OEM/ODM of e-bike batteries, which is with more than 12 years of experience. We design and produce the complete intelligent lithium-ion battery pack for light electric vehicles, including the Smart BMS and battery.
This blog post was brought to you by the team from the Tritek company. If you’re interested in learning more about us, please feel free to contact us. We hope this article was helpful. Thanks for reading!