When to replace the battery on your electric bike

Your electric bike's battery won't fail overnight, but its capacity will diminish over time. Here's how to recognize the signs that it's time to replace it.


If you don't know when or how to change the battery on your electric bike, that's a pretty good sign. EAB batteries are very durable, and replacing them is one of the rarest repairs. But for loyal cyclists who've been using their bikes for several years, the time will come when the battery shows signs of weakness. Here's what you need to know.

Electric bike with battery

How long does an electric bike battery last?

Service life depends on several factors: usage, charging habits, temperature and driving conditions. It is measured in complete charge cycles (from 0 to 100%). On average, a battery lasts between 500 and 1,000 cycles, or around 3 to 7 years.

High-quality batteries often last much longer, and Bosch batteries are among the best performers.

To assess the condition of a second-hand EAB's battery, it's better to know the number of cycles completed than the total mileage. Every Upway electric bike is sold with this information. At the time of new, Upway replaces any battery tested at less than 80% of its initial capacity.

When should the battery be replaced?

Electric bike with external battery
EAB batteries gradually lose capacity with use. As long as there are no breakdowns, you can continue to ride, but as soon as the autonomy becomes insufficient for your needs, it's time to change.

We strongly advise against buying a cheap replacement battery. Use a quality battery, compatible with your model - ideally from the same brand. It's often the most expensive part of an electric bike, but it's a good long-term investment.

Breakdowns are rare, but problems can occur. An accurate diagnosis can save you the trouble of buying a new battery. AllUpway VAEs come with a one-year warranty, including battery and motor.

What about your old battery? It's crucial to recycle it properly to avoid environmental or fire risks. Your local bike store may offer a recycling service, or look for a collection point near you. A simple Google search is all it takes - the planet will thank you.

Tips for extending the life of your battery

If you use your EAB on a daily basis, expect to have to replace the battery after 3 to 5 years. With moderate use and good maintenance, it can last over 7 years.

Here are a few tips to prolong its life:

  • Avoid full discharges, which put extra strain on the battery.
  • Charge regularly, but do not leave the charger connected continuously.
  • Avoid extreme temperatures - cold can temporarily reduce performance.
  • If you won't be using your bike for several weeks or months, keep the battery charged to around 50%, and check it regularly.

Key points to remember :

  • EV batteries generally last 3 to 7 years or 500 to 1,000 cycles.
  • Replace your battery when its capacity no longer meets your needs, with a quality, compatible model.
  • Extend its life by avoiding full discharges, storing it half-charged, and keeping it away from extreme temperatures.

Frequently asked questions

What is the best type of battery for an electric bike?

Lithium-ion (Li-ion) batteries are the most common and best suited to electric bikes. They offer high energy density, long life and are lightweight - ideal for reliable, long-distance journeys.

Do I have to remove the battery from my electric bike when it's not in use?

EAB lithium-ion batteries generally last between 500 and 1,000 full charge cycles before performance diminishes. Properly maintained, they can last for several years - up to 10 years - depending on use and care.

How can I extend the life of my electric bike battery?

Take care of your battery by avoiding extreme temperatures, keeping it charged between 30 and 50% during storage, using the right charger, and keeping it in a cool, dry place.

How long does an electric bike battery last?

EAB lithium-ion batteries generally last between 500 and 1,000 full charge cycles before performance diminishes. Properly maintained, they can last for several years - up to 10 years - depending on use and care.