11 Best Batteries for Electric Bikes. Small 48v ebike battery

Best Batteries for Electric Bikes

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  • By Kate Halse
  • Updated Dec 28, 2022 at 6:23pm

Is range anxiety limiting your rides? Cruise longer on your fat tire e-bike or another electric bike with a backup battery. You can also replace the original battery with one that’s even better. The best batteries cost a fraction of what you spend on an electric bike and are valuable investments for your active lifestyle.

Want an electric bike? Check out our best electric beach cruisers guide, with fun and stylish options for everyone.

  • Fits most electric bikes, scooters, tricycles, etc.
  • Delivers over 1,000 charging cycles
  • Power output ranges from 200W to 1,000W

EDITOR’S CHOICE: Unit Pack Power Jumbo Battery

Get extended performance from the UPP Jumbo Shark Battery Pack, which can last over 1,000 charging cycles. That’s at least 5 years with regular use. Conveniently, you can use this power pack on a wide range of bikes. It’s suitable for 500, 750 and 1,000-watt motors and works with many mainstream brands, including ANCHEER electric bikes and ECOTRIC e-bikes. Reliability and convenience are big factors in a second eBike battery, which is why this one is our top pick.

This specific battery is rated for 48V 13Ah and 30 amps. Other options are available, including a smaller 36V 15Ah battery and a beefier 52V 20Ah battery. The smaller one could be good for an entry-level e-commuting bike, while the biggest battery can power a fat tire e-bike. There are also several other options in-between.

Concerned about carrying extra weight? The most powerful batteries are often heavier. For example, the heftiest batteries can weigh up to 10 or 12 pounds. It’s something to consider if you’re going to be carrying a spare power pack.

Rest assured your battery will be safe if you need to stop during your ride, as you can securely lock it on the frame using the included keys. You’ll also find an integrated USB port to charge your phone and an LED battery indicator.

RUNNER UP: QZF 48V 1000W eBike Battery

Get more miles out of each ride with a versatile backup battery. This QZF lithium-ion battery fits a wide range of motors from 250 to 1,000 watts, making it well-suited for entry-level rides and premium ones.

There are several variations of this e-bike battery. This particular model is a 48V 13AH 1000-watt powerhouse that will extend your road and trail adventures. It’s been upgraded with a more secure base connection to virtually eliminate bad contacts.

When you’re spending this much money on a second battery, you want to make sure it will last. This one will last over 1,000 charging cycles, or 5 years with normal use. It also dissipates heat better than the last model for longevity.

This battery can keep you cruising between 45 and 85 miles, depending on factors such as weight and riding conditions. Other versions offer different ranges. An integrated light alerts when the battery is running low. You’ll need to set aside up to eight hours for the battery to fully charge.

An included key secures the battery to the frame for peace of mind. 5V 1.5A USB charging socket to keep your Smart devices juiced up on the go.

MXS Ebike Battery

Available in configurations from 36V 10Ah to 52V 13Ah, the MXS Ebike Battery fits most bikes. The smaller 36V batteries fit most motors up to 500W. If you need more power, the 52V battery is ideal for 1000W motors. You’ll get around 25 to 35 miles per charge depending on your weight, speed and road conditions.

A unique wavy design prevents the MXS battery from sliding around inside the frame. This will help you feel more confident on rough roads and trails. It also withstands the elements with waterproof materials. A hard plastic shell protects the battery from road and trail debris.

You’ll need to set aside around five hours to charge, or until the LED lights turn green. The MXS is rated for over 1,000 cycles or five years. Each battery has a USB port to keep your smartphone topped up throughout the day, so you can easily get in touch with loved ones at any time.

BtrPower 36V 48V 10Ah Lithium-ion Battery Pack

The BtrPower pack is ideal for commuters. It’s compatible with 250- to 750-watt motors and comes in two sizes to fit many different bikes. Just plug it in when you get to the office or home, and it will be ready to go in just 3.5 hours.

Ranging from 36V 10Ah to 48V 10Ah, there are many variations. If your bike’s motor doesn’t exceed 750 watts, you can extend your riding time by several hours. Even the most powerful model weighs just 4.4 pounds and is easy to carry as a spare.

The 36V battery offers an additional 30 miles of extra range without pedaling. You’ll get an extra 20 to 30 miles with the 48V version. Both batteries retain 80% capacity after 1,000 charging cycles, ensuring they’ll last for years with regular use.

Worried about getting caught in the rain? This battery is waterproof and is enclosed in a durable ABS case that can withstand rain and water. Pair it with your electric assist mountain bike or your fat tire e-bike for a fun off-road adventure.

Don’t worry about holding back out on the road or trails, as this battery features a BMS protective board to prevent overcharging. It’s also covered by a 1-year warranty for peace of mind.

Rad Battery Pack

Keep your favorite Rad Power e-Bike running strong with the appropriate Rad Battery Pack. Depending on your bike, you can use Standard or RadMission 1 packs for your e-bike.

The Standard pack is a 48V 14Ah 672Wh battery that works with Rad Power bikes dating back to 2018. It’s not compatible with the RadMission 1 or RadRover 6 Plus ebikes.

If you own a RadMission 1, the corresponding 48V 10.5Ah 504Wh battery pack is for you.

There isn’t a huge weight difference between the batteries. Standard weighs 7.7 pounds while the RadMission 1 battery weighs 7 pounds. You can easily remove the batteries for charging as needed. These batteries are lockable and removable and come with two keys for enhanced security.

Both batteries contain dependable Samsung 35E cells and have an integrated charge level indicator to let you know just how much juice is left.

Yose Power eBike Battery

Most ebikes have a battery on the downtube, where it’s convenient to charge and replace. This Yose Power battery will fit snugly onto your frame as long as you have a secure place to put it. You can also easily transfer it between bikes.

On a full charge, you’ll get up to 30 miles on full power mode and at least twice that distance on eco mode. That’s a huge range that will easily extend a fun day out exploring the trails. You can choose the amount of power you need at any time to conserve battery life.

It’s also a practical long-term investment. This battery retains over 70% capacity after 1,000 charge cycles. Unlike some smaller batteries, which may only last for 600 charges, your original Yose battery can last for years. An 18-month battery warranty provides extra peace of mind.

Downtube batteries are convenient, but they’re exposed to the dirt and debris that can fly when you’re having fun. All internal components are properly shielded against potential damage from rocks, dirt and dust. The battery is also waterproof. An innovative Smart BMS protection system prevents overcharging.

If you’re planning on carrying this battery as a spare, keep in mind that it weighs nearly 7 pounds. That includes the holder. A backpack or even a rear bike rack can help safely store your belongings.

It takes around seven hours to recharge this battery, which is slightly longer than some others on our list. LED indicator lights show how much juice is left. If your phone battery dips when you’re out and about, just use the included charging socket.

sixthreezero Battery for Electric Bikes

Power your electric bike with this sixthreezero ebike battery. Choose between 250- and 500-watt batteries depending on which one works best with your bike.

The smaller 250-watt battery has a 36V and 10.4Ah rating, which is plenty for most rides around town. Pair the battery with a bike such as the AroundtheBlock 250W Electric Cruiser Bike to keep the momentum going for hours.

Each 250-watt battery lasts up to 1.5 hours per charge. You can cruise up to 15 miles on full electric and 15 to 30 miles on pedal assist mode.

There’s also a 500-watt battery. This e-bike battery packs a more powerful punch with 48V 10.4Ah for maximum performance. Pair the battery with a bike such as the EVRYjourney 500W Electric Hybrid Bicycle to confidently ride up steeper hills and enjoy longer outings in the saddle.

With a more powerful 500-watt battery at your disposal, you can cruise up to 20 miles on full electric and up to 40 miles on pedal assist mode.

ModWheel 48V 11.6AH Li-ion E-Bike Battery

ModWheel is popular in the world of ebike conversion kits, but its replacement ebike batteries are just as dependable. This ModWheel 48v ebike battery isn’t cheap, but you get what you pay for in terms of performance and overall quality. You can also use this battery with a variety of bikes and motors, including 750-watt motors and bigger 1,000-watt motors.

Details matter if you’re looking for the best battery for your electric bike. This ModWheel battery is housed inside a plastic case to avoid overheating, even when you’re out for the day. It also weighs just 6.5 pounds for easy carrying. An expected lifespan of 800 charging cycles means you can count on this battery for years to come.

In terms of performance, you can cruise around 14 extra miles, depending on your bike. An on/off LED button clearly indicates the charging status. There’s also a locking key for added security.

When the battery runs low, it requires around five hours to recharge.

Ecotric 36V 12.5 Ah (450 Wh) Lithium-Ion Battery Pack

Double your riding time on your favorite ecotric foldable ebike, such as the Starfish or Dolphin, with the ecotric lithium-ion battery pack. Don’t worry if you have a different ecotric bike, though, as you can find an ebike battery for your ride.

This particular lithium-ion battery pack boasts a 36V rated voltage, 450 watt-hours and a 12.5Ah battery capacity. In other words, it’s powerful enough to conquer hills and power along flats. Each battery weighs just 7.69 pounds and lasts over 600 charges per cycle.

Security is just as important as function. This battery is detachable for easy charging and theft protection. You’ll receive two keys for added convenience.

When it’s time to swap out the battery, this lithium-ion pack securely mounts to the base and doesn’t require any wires to hold it in place. An 18-month warranty offers extra peace of mind.

Need a replacement battery for a different Ecotric bike? Browse the full selection for more options.

Joyisi Lithium-ion Ebike Battery Pack

Cruise for hours with the Joyisi e-bike battery, which comes in 48V and 52V configurations. It’s ideal for bikes with larger, more powerful motors. Although it’s compatible with many brands, you can check with your bike manufacturer to see if it’s a good fit.

The 48V 12.5Ah electric battery is suitable for motors between 500 and 1,000 watts. It’ll provide roughly 30 additional miles.

Larger motors might require the 52V 14Ah Samsung Cell battery, which powers motors ranging from 500 to 1,500 watts. It delivers an extra 20 to 30 miles of riding time.

On the outside, hard plastic shells guard against dust and other environmental hazards. Integrated LED indicators show the remaining battery life. There’s also a built-in USB charger for your phone and other devices.

Anderson connectors are included with each battery. You’ll also find two keys to secure the battery when you’re not riding.

H HAILONG Ebike Battery

One of the best features of this battery is its affordable price tag. It comes in 36V and 48V variations and can fit everything from e-bikes to electric tricycles, scooters and more. Power output ranges from 200W to 1,000W to cover most needs, whether you’re a daily commuter or want a bike for extended off-road adventures.

At the heart of every battery is a premium battery chip for extended performance. Each cell can also be charged over 500 times without compromising the battery’s performance. Even better – you don’t have to drain the battery of its charge before re-charging to extend its life. Every battery delivers over 1,000 charging cycles, or over 5 years of service life.

Bike batteries can be burdensome to carry, especially when they’re heavy and bulky. This one is relatively lightweight, which makes it especially appealing as a backup option. The lowest capacity battery (36V 8AH) weighs just under 4 pounds while the largest 48V 20AH battery weighs 8.37 pounds.

This boxy battery isn’t the most aerodynamic, which could make it a tougher fit on some ebike frames. However, it has a wider range of applications than most other batteries on this list, which are strictly for electric bikes.

How Do I Know Which Battery to Get for My Electric Bike?

Whether you’re buying a backup battery or want to upgrade, you need to get a battery that’s compatible with your ride. You’ll need to stay within the recommended range to avoid potential issues.

Most manufacturers sell lithium-ion batteries, which are popular due to their affordability and low maintenance over time.

According to the University of Washington’s Clean Energy Institute, lithium-ion batteries have a low self-discharge range of 1.5 to 2 percent per month. This low rate means a longer shelf life. They’re also relatively easy to dispose of as they don’t contain cadmium.

As you shop for the best battery for your electric bicycle, you’ll notice several numbers. Some of the most important include watt-hours (Wh), amp-hours (Ah) and volts. Many manufacturers also list the amps, although this isn’t the same as amp-hours.

Watt-hours combine voltage and amp-hours to determine how far you can ride on a single charge. Amp-hour ratings suggest a perceived capacity, or how long the battery can operate over a specific amount of time.

Which Battery Is Best for an eBike?

Every battery comes with its own set of numbers to give you a better idea of how much power, performance and run time you can expect on your rides.

However, these numbers aren’t concrete. Just because a manufacturer suggests a certain range, it doesn’t necessarily mean you should expect those same numbers.

Every bike and rider is different. Realistically, numbers will vary from one rider to the next. Factors such as terrain, bike and rider weight, and even weather conditions can influence how long your battery lasts with each ride. A fat tire electric bicycle, for example, will likely require a larger battery than a more compact step-thru e-bike for commuters.

What Is the Lifespan of an Ebike Battery?

According to BatteryUniversity, the capacity of a lithium-ion battery may deteriorate after just one year. This type of battery might completely fail in just two or three years. However, some lithium-ion packs can last as long as five years.

Some manufacturers include an expected charge cycle for their batteries. For example, you might notice your battery of choice is rated for 500 or 600 cycles. This number will give you a rough idea of how long your battery might last under normal circumstances.

How Much Does an Ebike Battery Cost?

Most replacement batteries cost between 200 to 500. Larger batteries with a higher capacity typically sit at the higher end of the price range.

For example, a 36V 10Ah battery may cost 200 and a 48V 11.6AH can cost over 400. Regardless of the price, you’ll want to make sure that the battery is compatible with your bike.

What Size Is Best for an Ebike Battery?

Just as every bike and rider is unique, so is an e-bike battery. The best size e-bike battery for your ride depends on many factors, including the size and weight of the bike and your typical riding routes.

A smaller battery is faster, efficient and slightly cheaper. But it might not offer the power and performance you actually need for more demanding tasks, such as off-road rides on your electric mountain bike.

Take an entry-level battery, such as a 36V 10Ah battery, and compare it to a beefier 48V 15Ah battery. The 36V battery weighs less but doesn’t have the larger amount of power or riding range as the 48V battery.

While the 36V battery is more practical and economical on lighter folding ebikes, the 48V battery offers more bang for your buck if you’re a larger rider or have a heavier electric bike. This is especially true if you frequently ride up long, steep hills, or transport cargo on your electric beach cruiser bike.

Introduction: DIY E-bike Battery || Assembling 48V Hailong Battery

About: I am an electronics enthusiast. I post frequent updates on my projects at my instagram page @hyper_makes. About hyper_makes »

In this instructables i will add extra insights for my tutotial on how to assemble a Hailong battery(48v) for E-bike battery.


And if you want more details you can see my instagram handle @hyper_makes

Step 1: Parts and Supplies


18650 Li-ion cells EV grade 3C discharge rate : Local supplier




Before you order your BMS(Battery management system) circuit be sure to check its thiccness because there is very little space inside the case.







Mask the battery properly so that it is safe from any kinds of short circuits and accidental shorts.



Do the wiring according to the diagram provided with kit you bought or google about it.


Snugly fit all the wires at the edges of the case so that you can close the lid of the case properly.

Hot glue wires in place for more secure fit.(If necessary)

That’s it. You have assembled your own e-bike battery. Check video if you are stuck somewhere.


Step 6: Update:Do Not Use Switch Provided in Battery Case!

The switch provided in the battery case is rated for AC applications only and can’t handle large currents for DC applications, thus making it a potential bottleneck for the current flow. The switch can burn easily in this high current application when you will use the hub motor at full power.


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Комментарии и мнения владельцев

Hi, Thanks for the tutorial, wondering if you can provide the wiring/connections instructions to battery level indicator display. It will be very helpful if you can also share how we can connect the USB port of the hailong case. I understand we need with step down USB module.Appriciate your response.

for safety and sake of completeness you might want to add a fuse. for a 500w motor a fuse of 20a or 30a would be sufficient. get a (car) fuse and fuse holder. also i would advice to use 12 awg (20a) or 10 awg (30a) cable, i dont see you state wire thickness in the article. thanks for your great guide, it helped me build my pack.

Yes! You are right. A fuse would a very good extra safety feature. Pardon me, i have not mentioned anywhere in the article but i have used 12 awg cable for connections indeed. Glad to hear i could help you.

Hello,First I would like to thank you for the tutorial !I’m surprised that you mention not to use the included ACC ON/OFF switch that comes with the case.I have followed my case supplier instructions that says that to use with we must buy a BMS with pre wired ON/OFF.So the included ACC ON/OFF do not cut the main power but just the BMS electronic ON/OFF.I can understand that in your case if you have note the proper BMS you must avoid to use the switch.Best regards,Marcelo

Small 48v ebike battery

Roll over image to zoom in Click on image to zoom



  • Battery: 48v, 11.6AH Lithium-Ion battery with Panasonic cells
  • Features: LED Lit On/Off Button and Locking Key
  • Weight: Around 6.5 lbs.
  • Capacities: 48V/11.6AH
  • Charging Cycles: Over 800 times
  • Charge Time: 5 Hours
  • Ride Time: Around 14 Miles (depending on the size wattage of your e-bike)
  • Compatibility: Can be used with 48v 750w and 48v 1000w electric bike wheels

Customer Reviews

Finally found it! I have been looking for a replacement battery for a wheel kit i got from a friend for a while. I have been all over the place online and calling into shops with no avail. Extremely sad and down on my luck i found bikeberry while searching around some bike forums. I decided to give the customer support a call and man was i impressed! They were extremely courteous and answered all my questions accurately. They helped me find out what exactly was the issue and what would be the best replacement for my kit. Just a few weeks ago i finally received my battery in the mail. The battery was well packaged and protected in styrofoam. Without hesitation i grabbed the power connection and attempted to connect it to my kit. AND IT WORKED. THANK YOU SO MUCH BIKEBERRY.com! I am back to riding my eco friendly bike up and down the beach.

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Replacement Electric Bike Batteries Guide

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A good e-bike battery should last for hundreds of cycles. With average use, this means several years. Eventually, electric bike batteries need to be replaced as their life cycle comes to an end.

You can tell when a battery is nearing the end of its life when it does not provide you with much range. Some high-quality batteries that come on the top e-bikes such as a Bosch battery have a battery management system (BMS) integrated into the battery that actually tells you the current capacity and also how many charge cycles it has gone through.

But no matter what type of battery you have you’ll sooner or later be asking yourself the all-important question: how can I replace my e-bike battery?

Down below Electric Bike Report dives into this question and more in greater detail.

Are E-bike Batteries Interchangeable?

In general, the answer is no – you should only replace a battery with one that comes from the same manufacturer and is of exactly the same spec.

The reason is that the original e-bike or kit manufacturer has the responsibility to ensure that the battery pack, charger, and e-bike all work safely together, and using a ‘non-original’ replacement pack potentially introduces all sorts of uncontrolled risks.

It’s a little more complicated than this in some situations. For example, some Bosch batteries of different capacities are explicitly made to be interchangeable and there will be many instances where an original supplier and/or manufacturer of the e-bike cannot be traced or has gone out of business – in such cases we look at your options below.

As an important side note: you should always, if possible, use a charger that comes from the original manufacturer too. The one that comes with your battery should sync up well and not overload the battery. Pairing your battery with a different charger adds in risk of malfunction during charging.

Let’s first look at the basics of getting a replacement battery for your e-bike, then we will look at some of the major manufacturers of e-bike batteries and some of the main e-bike manufacturers to see which common battery types are still replaceable. Let’s consider the options for replacement in terms of desirability.

Where Should I Go to Get a Replacement E-Bike Battery?

On this last point it may help to note that there are a couple of manufacturing standards for rechargeable lithium-ion batteries used in e-bikes. Although it’s not a legal requirement, it may be that one of the standards is actually marked on the battery itself.

The standards are BS EN 50604‑1 and UN38.3, the latter required for lithium-ion battery transport by air, sea or land. Just because these standards are not marked on a battery doesn’t mean it does not comply with them – but it is a reassuring sign if a battery does bear one or both of these marks.

Note that using a replacement battery that does not come from the original manufacturer (whether a dealer is involved or not) may void the warranty of your electric bike or kit. Check with the e-bike or kit company to understand what their policy is regarding the use of aftermarket replacement batteries.

Replacement Batteries from Original Manufacturers

Bosch E-Bike Batteries

Only Bosch manufactured batteries will be used on any new Bosch e-bike – this has always been the case and so it makes advice on interchangeability a little more straightforward than with the likes of Shimano and Brose who have both allowed the use of third party batteries with their mid-drive motor systems.

There have been four basic designs made by Bosch over the years (good online overview here):

  • Rack mounted batteries: PowerPack in 300, 400, and 500 Wh versions which are all interchangeable with each other.
  • Down tube mounted batteries: PowerPack in 300, 400, and 500 Wh versions, current versions of which are all interchangeable with each other.
  • Frame integrated batteries: PowerTubes in 400, 500, and 625Wh versions, with the 400 and 500 units being interchangeable with each other. The 625Wh may be retrofittable but it needs a compatible frame with a big enough space to house it (400 and 500 units are the same physical dimensions but 625 is bigger). 500 and 625 Wh units are used on the Dual Battery system to give a capacity up to 1250Wh.
  • Frame Integrated ‘Smart’ Option batteries: This is a new 750Wh option for 2022 and will be only compatible with 2022 e-bikes that feature the Bosch ‘Smart’ system and will not be compatible with other Bosch e-bikes that are ‘non-Smart’. Similarly, other types of PowerTube batteries (400, 500, and 625Wh versions) will not be compatible with e-bikes featuring Bosch’s ‘Smart’ system.

Some third-party batteries compatible with Bosch systems are available as detailed in the section below.

There are some suppliers of batteries that will fit older models, in some cases dating back to 2011 when the Bosch e-bikes first entered the market, for example, The Holland Bike Shop in Europe sells some batteries compatible with much older Bosch-powered models.

Shimano E-Bike Batteries

Shimano produces its own brand batteries for use on their systems, but you may also find new e-bikes powered by Shimano motor systems with batteries manufactured by their licensed partners Darfon and SMP. These third party batteries are not interchangeable with any Shimano batteries.

Shimano’s current range includes rack-mounted, downtube-mounted and frame-integrated batteries from 418Wh to 630Wh. You can see a brief overview with detailed links to each battery on offer here.

It’s important to note that each battery model has a limited number of specific battery mounts it will work with, so it is important to replace an old battery with one that is compatible with the mount on your e-bike. You can check out detailed compatibility info here and here.

Shimano says that ‘the oldest current battery we have is the BT-E6000 and the corresponding battery mount BM-E6000. These are compatible with all five of our current drive units (DU-EP8/E8000/E7000/E6100/E5000), but not earlier systems. For reference, DU-E8000 is the oldest in that list – it was introduced in 2016.’

Brose E-Bike Batteries

The only battery listed on Brose’s own website is a 630Wh frame-integrated option.

However, Brose systems are widely used by other manufacturers who also spec own-brand or third-party batteries. These include the likes of the widely respected battery manufacturer BMZ and well-known brands like Scott and BULLS.

For example, Specialized’s ‘full power’ range use Brose-based mid drives and a range of their own brand frame-integrated batteries. Although information on interchangeability is scarce, a Specialized FAQ page, in response to the question ‘Can I increase range by using the 604Wh aftermarket battery in any Turbo Vado/Como?’ says yes, all Vado batteries are cross-compatible as long as you are running the latest firmware (by implication so are Como and Turbo full power batteries are cross-compatible too).

The above appears only to address compatibility on current Specialized models and battery availability for older models appears a bit more complex with lots of debate online over the matter.

The fact that the latest Specialized e-bike batteries contain a Bluetooth chip to communicate with the latest Mission Control App certainly suggest both backward compatibility and availability of third party batteries will be very limited. Current e-bike batteries available from Specialized can be found here.

Yamaha E-Bike Batteries

Yamaha has integrated, rack-mounted and frame-mounted options ranging between 400Wh and 600Wh but information on backward compatibility is rather hard to find. Their systems appear on Haibike models and in the US on their own brand models too.

Giant use Yamaha motor systems but apparently have their own brand of battery – the EnergyPak range. The standard EnergyPak comes in rack-mounted and frame-integrated options whilst the Smart Compact variant allows for faster charging.

Finally, there is the Giant EnergyPak Plus, for use with the Smart Compact – a range extender style battery that fits onto the frame and effectively increases the capacity of the main Plus battery.

Giant’s Service web page states that there are EnergyPaks with 300, 360, 400, 500 and 625Wh capacities and also states ‘Giant EnergyPaks are interchangeable’.

Fazua E-Bike Batteries

This lightweight German-made system uses a frame-integrated 250Wh design and there have been two types of battery, Battery 250 and Battery 250X, the latter having the ability to be switched on and off remotely.

The latest Fazua Evation 250X battery is compatible with all Fazua electric bikes from 2019-22.

GRIN and Cytronex E-bike Kit Batteries

Canada’s GRIN is a true expert in producing a wide variety of e-bike kits. Whilst they do several designs of batteries, one of their best options from a replaceability point of view is their own brand LiGo batteries.

LiGo batteries are very unusual in being modular so that you can easily connect together as many as you like to increase or decrease battery capacity at will. They are particularly suitable for lightweight and folding bikes (I use them on a GRIN Brompton kit) and also for those who want to air travel with e-bikes as the individual battery units are only 98Wh and so are generally allowed on passenger aircraft (disconnect them from each other for travel and reconnect them on landing to make a useful e-bike battery).

The design has been around for several years and is backward compatible.

The UK’s Cytronex produces both European and US spec lightweight kits which use a unique own-design of ‘bottle battery’.

Cytronex says all their lithium bottles are compatible forwards and backward from the first version in 2017. They have different firmware for the new Bluetooth variant but both this and the non-Bluetooth version allow you to use the new 2-way – 5 level Boost Button or the previous one-way 3 level button.

In fact, if you have old and new kits on two bikes you can switch the bottle between both and it will recognize the two different button types automatically.

E-bike Manufacturers Own Brand Batteries

There are hundreds of e-bike manufacturers in the more budget space so it’s way beyond the scope of this guide to cover the options for each one; rather we’ll take a look at a couple of the market leaders.

Rad Power Bikes E-Bike Batteries

Rad Power Bikes first started producing e-bikes for the North American market in 2015 and now claims to be the US market leader. Their website lists several replacement batteries and their current lineup of bikes uses one of two battery designs.

There is the External Battery Pack (with the option for the smaller pack specific to the RadMission) which is compatible with all 2018 and newer model ebikes except the RadRover 6 Plus and RadCity 5 Plus, which use the Semi-Integrated Battery Pack.

Rad Power Bikes does offer legacy options for bikes older than that 2018 ‘cutoff’ and although some of these legacy batteries are currently out of stock Rad says they have plans to restock them.

The battery packs are consistent across their main sales areas of Canada, US and Europe.

The Rad Power website has a great filter system so you can track down the compatibility of what batteries are in stock against all current and previous models, right back to the original 2015 RadRover. All e-bike manufacturers’ websites should provide this service!

Pedego E-Bike Batteries

A longstanding US manufacturer with a clear set of battery specs for current models here. However, there doesn’t appear to be any info about legacy batteries or backward compatibility.

Interestingly, and it seems uniquely amongst the mainstream manufacturers, Pedego have recently introduced a serviceable battery (pictured above) – designed to be easily maintained at the local Pedego store. It features a rear light, brake light and indicators to boot.

Batteries for Out-Dated Motor Systems

There are a number of older motor and battery systems that are either not used or little used these days but there are still some suppliers out there who may be able to help out and if you are in this position a bit of internet research might just turn something up. Let’s take a look at a couple of examples.

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BionX E-Bike Batteries

BionX operated between 1998 and 2018 and were once one of the leading e-bike system manufacturers in North America, with the likes of Trek and Kalkhoff using their systems.

There are still limited stocks of spare parts available here and there, including batteries, for example on this Ohm webpage.

Heinzmann E-Bike Batteries

German company Heinzmann had a great reputation for quality and produced the now obsolete Classic system and the newer Direct Power system. At various times both were available as kits or fitted to off-the-peg e-bikes.

In the UK Electric Vehicle Solutions are the main stockist of complete Direct Power kits and of spare parts for the Classic system.

What About Non-removable Frame Integrated Batteries?

A relatively small number of e-bike batteries are incorporated into the frame and not designed to be removed by the rider – they must be charged on the bike. Whilst perhaps inconvenient for some, the system has the benefit of a sleeker and simpler design and keeps the battery cells well-protected.

The Ebikemotion X35 system is one example of the most common lightweight systems out there to feature a frame-enclosed battery.

When it comes to replacing these batteries, to be clear, our official advice is that this is a job for the dealer, or expert shops to do only.

DIY in this area can get tricky in a hurry. Looking into service options to replace batteries in an integrated system is something to consider before purchasing the bike.

Third-Party Replacement E-Bike Batteries

For some older batteries – or even some current ones – there may be manufacturers other than the so-called OEMs (original equipment manufacturers) who made the original batteries. These third-party companies are not recognized by the original e-bike manufacturers so if possible it is always best to go back to your dealer or the manufacturer directly to source an original battery.

However, third-party batteries may be a solution where no original batteries appear to be available.

There are a growing number of companies that provide third-party batteries and here we take a look at a couple of the bigger operations.

Please note that on e-bikes that are still in their warranty period, replacing the battery with one from a third-party manufacturer will most likely void the warranty.

FTH Power has a good amount of experience in the electronics business and has diagnostics and assembly capabilities. They look to have good stocks of popular far eastern battery brands such as Reention (used by the likes of Juiced and Surface 604) and Hailong. They also have this handy battery/model finder to see if they have batteries for your particular model of e-bike.

Third-party battery provision (and recelling services) appear to be bigger business in mainland northern Europe than in the U.S. It makes sense, this is where e-bikes have been around much longer and where the average value of e-bikes is higher. The need to keep older bikes going longer is greater. For example, Heskon is a major supplier of replacement batteries to dealers and Fiets Accu Revisie is the part of Heskon that sells direct to customers.

The UK’s Electric Transport Shop network offers battery diagnosis (refundable against a replacement battery or recell if required). The ETS says they also have stocks of Battery Management System chips that can be used on certain packs, usually on older e-bikes.

The ETS also says ‘There are so many shapes of e-bike batteries now that we cannot guarantee that we have cell packs to fit them all and it is usually cheaper to buy a factory-built replacement than to hand-build a replacement pack in the UK so we usually recommend buying a battery from the original supplier if the diagnosis proves that’s what is needed. If their supplier is no longer available to supply a replacement pack in this instance we will help people find a suitable replacement or as a last resort we will offer to wire in an alternative pack which may be in a different position on the bike.’

What Should I Do With My Old E-bike Battery?

If at all possible the ideal solution is to take it back to the dealer you bought it from who will send it on for recycling.

In the US the industry is in the midst of setting up its own recycling scheme. It was organized by People for Bikes and will be directly coordinated under the auspices of Call2Recycle. There will be a network of battery drop-off locations from the nation’s roughly 3,000 independent bike shops. Manufacturers and retailers can sign up here.

The batteries will be sent on to ‘processing partners’, four of which are domestic and two of which are foreign—one in South Korea and one in Belgium.

The consortium brands are funding the recycling service, which will be free to riders; of course, consumers will still have to pay for replacement batteries. There are also plans for a consumer-direct mail-in recycling option in the summer – EBR will keep you posted on its development.

There are already such ready-made recycling networks in mainland Europe and the UK is just beginning to establish such a network.

This guide to replacement electric bike batteries hopefully covered the basics of what is out there for you. It’s certainly just the tip of the iceberg though. If there is anything else that wasn’t covered here, let us know in the Комментарии и мнения владельцев below and we’ll update this guide with the info our readers are looking for!

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Shipping Policy

UrbanBikesDirect.com goal is to fulfil your order within 3 hours of your purchase. By Achieving this we have the quickest shipping times in the industry.

Our goal is to keep the ordering process as simple as possible. Shipping times vary from 1-3 business days if in stock and delivery time varies between 3-10 business days if your product is in stock.

All ebikes are shipped domestically.

Select Electric Skateboards can have extended lead times if they are located overseas and not in stock in the US.

Please read through this instructional guide so you can understand how the process works and what you should expect to happen once you place your order with us.

Tracking an Order

UrbanBikesDirect.com will send you automated tracking updates once we receive the tracking number for your order. You can also track your order by clicking here.

  • You will receive an order confirmation email as soon as you place your order. This means that we have authorized your credit card for the purchase and are preparing your order for shipment.
  • As soon as we receive your order, we automatically reach out to our warehouse to confirm that it is in stock and available for immediate shipment.
  • If your item is on backorder or unavailable, we will reach out to you via email.
  • If your item(s) are available for immediate shipment, we will process the charges and submit the order for shipment.
  • If your order is stock and your credit card is approved by our fraud guarantee department, the bike ordered will ship within 1-2 business days from the date of your order.
  • We will send you the tracking information within 24 hours to the email address you provided when checking out.
  • We ship daily via UPS Ground, Fed Ex Ground, and Freight to the lower 48 states. Most all orders will ship the same day as ordered if the order is submitted before 1pm PST (some exceptions apply, some part freight orders may not ship until the following day).
  • Some parts orders and freight shipments are subject to ship the following business day if the order is placed close to the 1pm cut off time.
  • Shipping costs are included with any unit going ground to the lower 48 states. AK HI ship by AIR at additional cost.
  • We do not offer Cash On Delivery.
  • A phone number is required by the freight company so a delivery appointment can be made.
  • Failure to provide this at the time of order may cause a delay in delivery as freight items will not be delivered without an appointment.
  • A delay in delivery may also cause additional storage fees to accrue that will need paid prior to delivery.
  • Customs, Duties, and Taxes: Import duties, taxes, and charges are not included in the item price or shipping cost. The recipient of an international shipment may be subject to customs brokerage fees, import duties, and taxes after the shipment reaches the destination country. Additional charges are the responsibility of the recipient because we have no control over these government-imposed charges and cannot determine what they may be. Customs policies vary greatly among countries. Therefore, we cannot, and will not, offer advice about taxes in your country. We report the amount of the sale on the Customs form. Please do not ask us to claim less than the actual purchase amount. It is the customers responsibility to know the legality of the electric bike ordered in their country. Do not order items that are illegal to import into your country. Laws are different in every country and we cannot keep up with them all. It is your responsibility to check with your Customs office to see if your country permits the shipment of our electric bikes to your country.
  • As the buyer, it is your responsibility to find out that information before you order. Please contact your local customs office for information.
  • To avoid a delay in receiving your order from customs, consider the following:
  • Provide us with a phone number where you can be reached by customs when your bike arrives. This phone number will be listed on the commercial invoice so customs can reach you to clear your order.
  • Please do not refuse a shipment or ignore requests from carriers regarding duty and/or tax liability charges. Be aware that most carriers will hold a shipment for 5 days after arrival in your country before they return it to the sender.
  • We do not refund original shipping charges for goods that are refused for delivery at customs.
  • We will deduct all additional fees resulting from refused international shipments from your refund.
  • If we are charged for YOUR taxes and duties on the shipment or incur any penalty or lawsuit related to your order or shipment, we will post the charge to your credit card.
  • If the package is seized by Customs for any reason and we do not receive the package back, we will NOT issue you a refund since, obviously, local laws and regulations determine the fate of the package. If we do receive the package back after being seized, you are still responsible for the shipping charges and any other fees plus penalties incurred.
  • We ship via UPS and Fedex for most electric bikes, USPS for small parts and accessories, and freight for large bikes.
  • If you don’t receive tracking information from us within six business days of your order confirmation, feel free to follow up with us at support@urbanbikesdirect.com
  • Please inspect the packaging of your items when they arrive.
  • If there are any bike damaged upon arrival, you can file a warranty claim to get replacement parts for anything that’s damaged.
  • If your item(s) do arrive damaged, please send photos to support@urbanbikesdirect.com and we will process an insurance claim on your behalf.

Cancellations Refunds:

  • All orders canceled are subject to an administration fee equal to 15% of the total order amount, whether or not your order has shipped. This is a fee that covers administrative and personnel fees.
  • If your item is on backorder and you accept the backorder, we will hold your payment until the bike ships. If you decide to cancel before a backorder arrives and is processed for shipping, we will not charge a fee.
  • If you order has shipped, you (the buyer) will be responsible for actual return shipping charges. Refunds will only be issued to the original credit card that you use when placing your order.
  • From time to time, a bike may run out of stock at our warehouse and the website wasn’t updated when you placed your order. In that case, we will send you an email right after you place your order notifying you of the backorder, what the expected time for arrival is, and what substitutes are available in case you are interested in getting a bike sooner.
  • The expected arrival time may change due to unforeseen circumstances like a shipment getting held up at the port upon arrival or the factory missing a certain part needed to complete the manufacturing process.
  • If the arrival time changes on your order, you can let us know whether you would like to keep the order, substitute for a different electric bike, or cancel the order altogether.
  • Once back orders arrive, we will notify you by email with your estimated ship date and you will receive an email with tracking information within 1-3 business days.

This section will give you the essential information about what to expect with the delivery of your item. If you purchased one of our large and heavy items your item will ship freight LTL will be delivered via a lift gate truck.

Important Freight LTL Shipment

How to Handle Damages, Exceptions or Discrepancies at time of Product Delivery (Carton packaging appears to have some damage such as ripped, holes, large dents, open carton, or items are missing):

  • Carton damage requires visual inspection of contents of the unit.
  • UrbanBikesDirect recommends IMMEDIATE inspection, with driver present, to verify damage. If contents are damaged, indicate damage on carrier’s paperwork and notify UrbanBikesDirect immediately.
  • IMPORTANT: If contents cannot be inspected immediately, notation on carrier’s paperwork must state: “Carton damage, subject to inspection” and list type of damage.
  • Contents must be inspected within 48 hours of arrival and actual damage reported to the carrier
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Carton packaging has excessive damage with the exposed electric bike:

  • Refuse shipment
  • Sign carrier paperwork: “Carton damaged and refused”
  • Notify Urbanbikesdirect.com immediately.

If you have any further questions about the ordering and shipping process, feel free to contact us by email at support@urbanbikesdirect.com

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