Bosch eBike Smart System New Bosch Battery. Bosch ebike 625 battery

Bosch eBike Smart System. New Bosch Battery!

The new Bosch eBike Smart System has been announced and they are changing the way we connect with our bikes. CEO of Bosch eBike Systems, Claus Fleischer, announced that the system update includes a new control unit, drive unit, battery, and even charger. What makes this system Smart is that they are all connected wirelessly via the Bosch eBike Flow app. Any adjustments, monitoring, and updates can all be done wirelessly through the eBike Flow app. Let’s dig into the new system, component by component, and see how Bosch really is making cycling smarter for 2021 and the future. The eBike Flow App will have 4 major features.

  • Over-the-air updates

You will no longer need to connect your Bosch system to a PC using a microUSB cable for system updates. Your bike will always be up to date when connected to Wi-Fi, and you can push any system changes with just a few taps on the screen.

The eBike Flow App will allow you to keep track of your ride, but also keep track of health statistics, like calories burned. If desired, iPhone users can connect to Apple Health to keep track of your important health stats.

The home screen is exactly that, everything you would ever need during any normal ride on one screen. View your speed, distance, battery range, total distance for each power mode, and even when your next maintenance interval will be.

For the first time ever, you can now adjust the drive unit’s power assist between Eco, Tour, Sport (eMTB), and Turbo modes. Need to travel further under a single charge? Simply adjust the power output for either of the riding modes to achieve the distance you need on your ride.

Bosch Kiox 300

The eBike Smart System now has the ability to use a minimalist LED Remote, or it can be combined with a full color Kiox upgrade, the Kiox 300.

This new display will always remain up to date as it automatically updates when they are released by Bosch. With a larger screen than the original Kiox, the Kiox 300 is sleek, bright and water and dust resistant. The larger display will assist you with better route planning as it will offer visual guidance for a better ride experience. The holder will also allow you to position the display at any angle that fits your riding experience.

Bosch LED Remote

The LED Remote has the same arrow buttons as the current Kiox remote, but is more ergonomic and is color coordinated so you can see what riding mode you’re in at a quick glance. Green for Eco, blue for Tour, Purple for Sport (eMTB) and red for Turbo. It also has 5 battery LEDs so you know just how much power you have left in the “tank.” The Smart Walk Assist feature will allow you to choose just how much power you need while using Walk Assist.

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Bosch Powertube 750

Claus Fleischer said it best, this is the new flagship rechargeable battery! The eBike Smart System is now equipped with a larger 750Wh battery pack, which offers 20% greater range than the 625Wh PowerPack. Although the 750Wh battery pack is not compatible with current PowerTube systems (400, 500, or 625) the enhanced battery management system (BMS) offers long service life, reliability, and protection of the internal cells. The Smart System PowerTube 750 is coupled with the new Smart System 4A Charger, which will charge your battery from 50% in just 2 hours, fully charged in 6 hours from 0%.

Bosch Performance Line CX

The new Performance Line CX Drive Unit is truly a Smart motor. It connects wirelessly to the eBike Flow App to make any adjustments for every riding mode on the fly. It offers 85Nm of torque to help you get up and over any obstacle or hill. This drive unit was designed specifically for the Smart System and can only be coupled with the PowerPack 750 and LED Remote and/or Kiox 300 display.

So what truly makes this system “Smart?” Bosch’s future goal is to tap into the IoT, or Internet of Things, so that you can fully immerse yourself in the cycling experience. This Smart System allows you to customize rides, update software wirelessly, and connect to applications you already use in daily life. This is the first step towards complete wireless connectivity for your bike’s systems, robust lock features for theft prevention, and social communications so that you can connect with riders before, during and after your ride. Starting 9/1/2021, we get an elegant, integrated, and reliable system that we can only expect from Bosch engineering.


Limitless riding enjoyment: Whether you’re taking a jaunt through the countryside or cruising through the city – using the PowerPack or PowerTube means there’s no limit to riding enjoyment. There’s a suitable rechargeable battery for every requirement and every type of eBike; whether it’s the rack variant, frame battery or the integrated solution. Thanks to their enormous range, long service life, intelligent battery management system and easy handling, Bosch lithium-ion batteries are among the most modern on the market, so all those decades of Bosch experience pays off!


PowerPacks are the fuel tanks of pedelecs. State-of-the-art lithium-ion technology makes them into efficient and longlasting suppliers of power. As an eBiker you can ride with them very conomically and thus maximize the range of a rechargeable battery charge.

TIRE PRESSURERolling resistance can be minimized by proper tire pressure. Tip: In order to maximize the range, inflate the tires to the maximum permissible tire pressure.

RECHARGEABLE BATTERY TEMPERATUREWith decreasing temperature, the efficiency of a rechargeable battery goes down, since the electrical resistance increases. In winter you can thus expect a reduction in the normal range.

CADENCE Cadences above 50 revolutions per minute optimize the efficiency of the drive unit. In contrast, very slow pedaling is very costly in terms of energy.

STARTING BREAKINGAs with a car, frequent starting and stopping is less economical than long distances at a nearly constant speed.

GEAR SHIFTINGCorrect shifting also makes eBiking more efficient. It is best to start off and take inclines in a low gear. You then switch to a higher gear in accordance with the terrain and speed.


The more conscientiously you treat the PowerPack, the further it will take you.

CHARGINGThe battery should be charged under dry conditions and at room temperature.

STORAGE DURING WINTERStore the batteries in a dry location at temperatures between 0 and 20 °C. Storage at room temperature is ideal. Being completely charged or completely discharged for storage is not advised for the batteries. The ideal charge status for lengthy periods of storage is approx. 30 to 60% or two to three LEDs on the battery indicator.

STORAGETemperatures below.10 °C and above 60 °C should be avoided.

TRANSPORTFor transport, the battery should always be taken off the eBike and safely transported in your car, for example.

CLEANING CARE Cleaning with a direct water jet is impermissible, in particular to protect the electronic components. Before cleaning, remove the battery. Occasionally clean and lightly grease the plug terminals.

WINTER USEDuring winter use (particularly below 0 °C) we recommend charging and storing the battery at room temperature before inserting the battery in the eBike immediately before riding it. For frequent travel in the cold, it is advisable to use thermal protective covers.

INSPECTIONUsing a diagnostic unit, the dealer can check the health status of the eBike, especially the battery, and tell you the number of charging cycles.


The service life of a PowerPack is influenced mainly by the type and duration of use. Like every lithium-ion battery, a PowerPack also ages over time, even if you do not use it.


  • Low load
  • Storage at a temperature between 0 and 20 °C
  • Storage at approx. 30 to 60% charge statuscycles
  • Parking the eBike in the shade or a cool location


  • Heavy-duty use
  • Storage at over 30 °C ambient temperature
  • Prolonged storage in a completely charged or completely discharged state
  • Parking of the eBike in the blazing sun



The charging time depends on the capacity of the battery and the charger type. The graphics show how quickly the various batteries can be charged with a particular charger.


PowerPacks and PowerTubes are particularly easy to charge directly on the eBike itself. You just need to insert the charging plug on the charger into the charging socket in the battery mount and insert the power plug into the wall outlet. Done! The batteries should be charged at room temperature in a dry location where a smoke detector is installed.


If the battery cannot be charged directly on the eBike, the PowerPack and PowerTube can also be easily removed.


The infrastructure of charging stations for eBike batteries is now well developed in many regions. Along popular bike routes, eBikers have access to an increasingly dense network of charging stations. In order to drive this development forwards, we now have a strong partner at our side with Bike Energy. This means that breaks from riding can be used as an opportunity to charge the eBike battery, free of charge.

Bosch unveils new 2020 e-bike motors and batteries, but are the updates enough?

Bosch’s electric bicycle motors and batteries have been leading the market for years without seeing many significant advancements. Now the company is hoping to change that with the release of its new line of upgraded motors and batteries.

Bosch’s new 2020 motors and batteries

It turns out we were correct, as Bosch’s new lineup includes the previously spied new motor casings and larger batteries. And now we are getting a better look at what Bosch has to offer in its first major hardware update in years.

Bosch’s previous motors were divided into two main classes: the smaller and quieter Active Line and the larger, more powerful but louder Performance Line. For 2020, the majority of the Performance line will be mounted in a smaller case similar to the current Active Line. It will feature an adequate 65 Nm of torque and offer a 300% pedal assist boost.

There are also two special variations of the Performance Line motors: Bosch Performance Line CX and Bosch Performance Line Speed.

Both are getting their own new magnesium casing to shave off weight. Both will also offer larger chainrings. The Bosch Performance Line Speed will have a higher top speed of 28 mph (45 km/h). That’s an increase over the 20 mph (32 km/h) limit on most of the other Bosch motors in the US. In Europe, the other motors have a lower top speed of 15 mph (25 km/h).

Bosch also showed off a new Cargo Line of motors designed for electric cargo bikes. The motor is available in its standard form or as a Cargo Line Speed model, which increases the speed to 28 mph (45 km/h).

Bosch’s Powertube batteries also received an update. The previous models maxed out at 500 Wh, but now the batteries have been increased to 625 Wh. The company will also offer a 400 Wh battery in the same 625 Wh case. That’s likely a nod towards affordability and could make the notoriously expensive Bosch system a bit more palatable to price-sensitive riders.

Updates to the display line

The Bosch Kiox display is also getting an upgrade. The company says that it will be able to wirelessly communicate with a specific Fox shock absorber to dynamically adjust shock performance. The feature isn’t available yet though, and Bosch didn’t have any demos available during its unveiling in Germany.

The Kiox display will also offer a new motor lockout feature where the motor is made inoperable when the magnetically attached display is removed. That allows riders to disable their bike’s motor as an anti-theft feature while the bike is parked in public. However, Bosch is requiring riders to pay an additional fee to access the software lockout feature.

Electrek’s Take

It’s great to see Bosch coming out with a new line of products. There haven’t been any substantial hardware updates in years, with the exception of the Kiox display’s unveiling nearly a year ago. I’ve still never seen that display on a bike in the wild, and have only experienced it on a demo bike at the company’s booth at the Interbike 2018 trade show.

The update to the motor and battery line is welcome, though I’m a bit underwhelmed. It feels like Bosch is playing catch up with other large manufacturers. Specialized has had 600 Wh in-tube batteries for years and even unveiled 700 Wh in-tube batteries last year.

Brose’s own magnesium mid-drive motor is not only a year more advanced than Bosch’s, but it is significantly more powerful too. And it uses belts instead of gears, making it whisper quiet.

Shimano’s mid-drives and displays are competitive with Bosch’s new 2020 models, but were unveiled in mid-2018.

Yamaha’s PW series of mid-drive motors offer more torque than Bosch’s and have also been on the market for some time now.

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Then there is the Chinese standout Bafang which we are seeing on more and more lust-worthy ebikes. The Ultra mid-drive is a chain-melting 1.5 kW.

Basically what I’m saying is this: Bosch’s new 2020 updates are quite nice and it is great to see them fighting to maintain their large market share, but these products are either comparable or behind offerings from nearly every other major competitor. Plus Bosch components are the most expensive option out there by a significant margin. Even bikes known for their affordability, such as Schwinn models, suddenly cost over 3,500 or more with a Bosch setup. And yet Bosch somehow still holds the lion’s share of the retail e-bike component market.

I’m not quite sure why that is. Perhaps because Bosch is a huge company, they can afford the marketing and production capacity required to shore up market share. Perhaps as an early entry into the field, they have simply become a legacy brand and are relying on the network effect to keep retailers coming back to Bosch parts around which companies have already invested in building frames. Whatever it is, it absolutely working for them. The company continues to grow its market share, even while its product offerings are slow to match that pace.

The next few years will be very interesting in the e-bike industry, that’s for sure.

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How to Extend the Life of Your Bosch eBike Battery

New batteries are no longer that complicated, but here is a guide on how to extend the life of your eBike Battery focusing on the Bosch range of products.

The Basics

The 300Wh, 400Wh, 500Wh 625Wh PowerPacks used on Bosch-powered eBikes are amongst the most advanced batteries currently on the electric bike market. They offer a superior range, reliability longevity compared to many other batteries. However, this all comes at a price; with a replacement pack currently costing around £600. Some people are put off by the price of a replacement battery, thinking that it will have to be replaced every other year, but this is just not true.

Bosch actually guarantees their batteries for 2 years or 500 charge cycles (whichever comes first). This doesn’t mean your battery will pack up after 2 years and 1 day. In fact, Bosch themselves state that the battery should be good for around 10 years or 1500 full charge cycles. After 1500 cycles the battery will still work, but any battery will age over time so it will start to lose capacity and therefore not power your electric bike as far.

Also, it’s worth pointing out now that many people think that a part charge counts as a full charge cycle in Bosch’s terms. Unfortunately. it doesn’t! If you just top the battery up a small amount, only this is recorded and will not be counted until there are enough of these partial charges to count toward a full charge cycle.

As a registered Bosh eBike dealer, when a Bosch-powered eBike visits our workshop we can use our diagnostics tool to read the battery itself. The Bosch battery is a very clever unit and records many different parameters, these are then saved within the system for us to analyse and consider depending on any issues presented. Also, we can tap into the system and see exactly how many ‘Full Charge Cycles’ this particular battery has had. Furthermore, we can view many other variables within the Bosch software, for example – maximum/minimum battery temperature, charge state, usage, etc.

Here are some of the most common questions we hear regarding Bosch batteries:

If your eBike came from us, we normally charge the battery fully just before letting it out of the workshop as we know you’ll be itching to ride it the minute you receive it. This helps condition the battery and gives it a starting point from which to gauge the rest of its operation. If you find it’s not fully charged, please charge it to 100% before riding. This applies to all brands of electric bike batteries too.

How often should you charge your Bosch eBike battery?

The new Lithium cells used within the Bosch battery packs are very advanced. Unlike the older style batteries where you had to completely discharge the battery and then fully charge it back up again, the new Bosch PowerPacks do not need this. In fact, it’s much better to just top up the battery after every trip. So if you have just cycled 10 miles on your electric bike, it’s better to top it back up to full when you get home rather than incorporating a few trips before charging fully.

Can I still clean my bike?

Yes, as with any bike – it is good to keep all components of your eBike thoroughly clean. If the exterior case or shell of the battery and motor is dirty, which will happen, this does not affect the performance of the internals. The best way to clean the battery is with a specialist bike cleaner, wet sponge (or soft paintbrush!), and low-pressure hose. A typical garden hose is perfect for washing away grime without applying too much pressure, once the area has been lightly agitated with the bike cleaner and sponge/paintbrush.

Although the Bosch batteries are weatherproof, it is never advised to use any sort of high-pressure jet/pressure washer on your bike. This pressure can force water into the battery case itself and potentially cause damage. It can also force water into other parts of your electric bike where you don’t want water to be (motor, bearing internals, suspension seals, etc.). So although it may be quicker to clean please don’t use pressure washers at all.

Will my battery range be affected if using an inverter from my vehicle or motor home?

No, you can use inverters to charge your electric bike – for example – from the cigarette lighter port in most cars. This can be handy if you are out and about or wish to charge on the move. But please make sure that the inverter itself is rated for the correct output for the Bosch charger. You can normally find this information on the inverter’s packaging or on a sticker on the inverter itself. The Bosch charger is designed for a rated voltage between 207 – 264 volts with an output of 42v.

The charger only charges the battery at a low 4 amp current; this is fine for most inverters and car batteries. Please check these values to make sure the inverter is compatible before plugging it in. One point to remember is that depending on the inverter itself, the battery may take a little longer to charge than if it was plugged into the mains.

Most importantly of all make sure the vehicle engine is running whilst the battery is on charge because it could drain your vehicle battery faster than you think.

How you can extend the life of your eBike battery easily:

In very simple terms, the harder you use your eBike the faster the battery will discharge. You can maybe classify this as the trade-off between fun and economy! Remember, the power of the motor can peak at 500w (depending on the specific Bosch motor) so it can draw power from the battery quicker and put a higher load on it the harder you push, and the assistance required.

The faster it discharges, then the more you will be charging it back up. This means that you could end up performing many more charge cycles than someone who is using their eBike lightly in the same time period. After a long period of time, the capacity of the battery will gradually drop. You could, therefore, be in the position of replacing it sooner if you’re riding your eBike close to capacity for the majority of the time (this is especially prevalent in de-restricted bikes).

We would recommend using an assistance level that works for you. Quite honestly you don’t ‘need’ to use the eBike flat out in ‘Turbo’ all of the time (even though it is fun!). The use of ‘Eco’ ‘Tour’ modes for the majority of riding is generally more than enough, with ‘Turbo’ mode assisting on the very toughest of climbs or in tough conditions.

You can also utilise the eMTB mode on your Bosch system, which will vary the motor’s input depending on what you are putting in yourself. eMTB mode is always optimally adapted to you, the incline, and the terrain – regardless of rocks, roots, or steps. This will give you the most bike-like ride feel and will give you an even drain on your battery.

Obviously, everyone’s fitness levels are different so you will need to work out what works for you, it is far too easy to hit ‘Turbo’ mode for the majority of your ride. The bike won’t go any faster (mph) but it will have more ‘grunt’, in fact, the eBike will only go as fast as you pedal, it’s just the amount of assistance the motor gives you that changes.

I’m putting my eBike away for the winter, will this damage the battery at all?

No, we know that some riders may not want to cycle through the cold, wet, and grim UK conditions found in the winter. You can store your bike away, it’s not a problem, however, there are some steps you can take to keep your battery healthy during these times.

If you are keeping your eBike outside in a shed or garage, then it’s always best to bring your battery indoors. The Bosch batteries are capable of being stored in temperatures between.10 through to 60 degrees centigrade. But the cells don’t like to be stored in very low or very high temperatures. In fact, the best possible temperature for storage is room temperature – around 15-20 degrees.

Once in the house at room temperature, store the battery in a dry and secure place. Sticking it on a shelf in the kitchen above the kettle runs the risk of moisture traveling up from the kettle and into the battery case. So we probably wouldn’t recommend this as a location for storage! The perfect place is tucked away in a cupboard where it’s kept at optimum temperature, away from moisture, and where it’s not vulnerable to being knocked at all. We know it can make a very good doorstop, it’s tempting; but not good for your battery. Just make sure you remember where you left it when you come to want to ride it again…


When storing your eBike battery for long periods of time it’s best to keep the battery partially charged. If you store the battery completely flat then you run the risk of damaging the internals of the cells themselves. Also if you store the battery fully charged this can leave the cells under more pressure. So it’s best to keep the battery stored in between.

For the Bosch battery in particular the optimum charge state to leave it in is 60% (Or 3 LED’s lit on the battery level indicator). Try to check the capacity every 6 months or so. When the battery reaches 1 LED showing, then top it back up to 3 LED’s again. Many people think it’s best to keep the battery on charge so it’s always topped up in storage, but this is simply not the case. The Bosch charger won’t ‘overcharge’ the battery at all and does not trickle charge.

Will it harm the battery if I run it completely flat on a ride?

No – it’s never recommended to run the battery completely flat – but for longer rides, we know it can happen. The Bosch Battery is protected by its onboard BMS (Battery Management System). This means it’s protected for deep discharging, the BMS won’t allow the battery to run completely flat.

It may seem that you have no power left, but the BMS will have already shut off the power to the motor before it can hurt itself. We all know that the beauty of the Bosch drive is you can still ride without any resistance with the power switched off. On a side note here, if you are running lights directly powered from the Bosch motor and you do run out of power, the BMS will allow a small amount of power still to the lights so you will still remain visible!

I ride in very cold conditions during the winter, will this affect my battery life and performance?

The simple answer is yes. Similar to fuel MPG in a traditional car, Bosch says economy can be affected up to 30% in sub-zero conditions. So if you are consistently riding in these conditions it can really affect not just your range but will decrease the overall lifespan of the battery as well. There are certain actions you can take to prevent this, such as wrapping an external Bosch powerpack in a specific neoprene sleeve to keep it as temperature as possible.

Should I remove the battery when transporting my bike on the bike rack of my car/motor home?

Yes, this is strongly advised, put it in a dry safe place inside the vehicle. It is less likely to get knocked and lessens the chances of the battery flying off the bike on the motorway if it’s not secured properly.

The best place to store the battery is under the driver’s seat, this means it’s out of the way and also shouldn’t move around too much. Wrap it in a towel to prevent any knocks. Do not leave the battery on your parcel shelf, if you end up braking hard, the 2kg battery is the last thing you want hitting you in the back of the head.

Also, by storing it in the car it keeps the battery from getting wet. Although the battery is rainproof, people don’t realize that if you’re traveling at 70mph down the motorway, the water air traveling over your car is then doubled in speed as it wraps around the back of your vehicle. This means the battery could be being sprayed with water at around 140mph! This is stronger than a pressure washer and can force water into the battery and components of the bike itself.

I dropped my Bosch battery and the case is cracked, what shall I do?

If your Bosch battery (or any eBike battery for that matter) is damaged in any way, then it should be looked into being replaced. Even if it seems OK on the outside one or several of the cells inside may be damaged, this can then move on to other cells and the whole pack can become a ticking time bomb. The battery could seem fine and work but weeks later the effects of the damage could become apparent. The battery could heat up or even ignite in extreme circumstances.

Do not under any circumstances ship this battery anywhere. A faulty Lithium cell can reach temperatures of 1000 degrees. It’s really not worth the risk, visit us in-store and have it replaced.

So, how many miles can I ride on a Full Charge?!

Well this is the million dollar question we get asked over and over again. And to put it frankly, there is no one fits all answer to this question! You see, there are multiple factors at play which affect the distance capable on an eBike.

Tyre pressures, total system weight, type of bicycle, tyre tread, battery capacity, motor system, cadence, environmental conditions, riding mode, average riding speed and even road surface choice will have individual and then combined factors on what you can get out of your Bosch motor battery.

Bosch have a fantastic tool on their website, classified as Range Assist which can help you calculate the range for your next eike ride or tour. This takes into account all of the above factors, for you to determine by the sliding tools, and it will calculate the estimated range for you! Bosch Range Assistant – Here

When was your eBike last serviced?

Something as simple as a brake pad rubbing can slow you down considerably. With the extra assistance on an electric bike, you may not even notice the extra drag. But the motor will be working much harder to assist you and therefore will drain the battery faster. It’s best to get your eBike serviced at least once a year to keep it in good shape which can pay dividends to battery health.

I think my battery needs replacing, what shall I do?

You should visit a Bosch dealer and have the battery capacity checked properly. We won’t take a meter near it, we will plug the entire bike into our computers and be able to give you a decision straight away if the battery needs to be replaced. On request, we can also print diagnostics reports for your records. When a new battery is purchased it comes with a new Warranty from a Bosch dealer, so be sure to keep the receipt of the purchase date safe.

Remember if you treat your Bosch eBike Battery well, it will treat you well in return. We hope that this guide will help you to extend the life of your eBike Battery!

Visit our specialist page for everything you could possibly want to know about eBikes and how they can help you.

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