Electric bike battery diagnostics

Why test your electric bike battery?

Most problems encountered on electric bike are caused by a faulty battery:

• Reduced range
• Battery won't hold a charge
• Assistance cuts out suddenly
• Lack of motor power

When should I have my battery tested?

There are several reasons to have your battery tested by a professional:

• If you decide to resell your electrically-assisted bicycle: a faulty battery is not visible to the naked eye, so having your battery tested will attest to its proper functioning and enable you to increase the value of your ebike.

• If you haven't used your electric bike for a long time: you need to make sure that your battery is in good condition before getting back on the road, otherwise you risk damaging it further.

• If you notice a lack of autonomy or abnormal performance: a failure is sometimes due to a simple fuse, and it's possible to change just this component!

How long does a diagnosis take?

Your battery will be out of action for around 3 weeks, including transport to and from our workshops. This time may vary more or less depending on the diagnostic orders to be processed.

Report details :

This report includes battery charge/discharge curves, data table and remaining battery life.

Technologies supported: Lithium, Nimh, Lead acid

Appropriate recommendations: changing a bicycle battery fuse, soldering cables, reconditioning the battery or buying a new one.

What are the steps involved in diagnosing an electric bicycle battery?

If you wish to diagnose your electric bicycle battery, the first step is to add the diagnosis to the shopping basket by clicking on the I buy button, and then place the order.

Once you've placed your order, you'll receive an e-mail with a colissimo label and the information sheet sent to you by Doctibike.

The third step is to carefully pack the battery, charger and keys in a sturdy cardboard box and go to a post office to drop off your parcel.

And after the diagnosis ? What happens next?

Once the diagnosis has been carried out, Doctibike will send you the details of the diagnostic report and advise you on the next steps to take:

• Battery repair electric bike: Doctibike technicians can replace a faulty spare part with a new one and repair your electric bike battery

• Reconditioning: Doctibike replaces the entire cell pack inside your battery with a new cell pack. After reconditioning, your battery's power is restored to its original level

• If neither of the above solutions is possible, Doctibike will advise you to buy a new electric bike battery. We have a large catalog of batteries on our website at electric bike. You're bound to find your battery.

Special case :

To check whether the battery's electronic board is still working, we invite you to ask us about the following points:

- Is the battery charging and discharging correctly?

- Have any power cuts or intermittent problems been detected?

- Are there any errors on the display/console?

- Does the display show the correct charge level?

Bicycle battery brands that cannot be reconditioned:

Some batteries are protected by industrial patents, which makes it difficult for our technicians to intervene. Batteries from brands such as Shimano, Brose, BMZ and Yamaha cannot be reconditioned. However, our technicians can carry out a diagnostic on these brands to determine the battery's condition.