Cell replacement or new battery?

When cell replacement can make sense

With cell replacement, we replace all cells. We continue to use the housing, connections and electronics as long as they are in good order. This can be worthwhile if …

• it is mainly the cells that have aged: the battery works, but runs for a considerably shorter time than it used to. Cells age over time and with every charge, even if the rest of the battery is in good order.^[1]
• a suitable new battery is no longer available, for example for older e-bikes or tools whose battery is no longer manufactured.
• the device is to remain in use and only the battery is getting weaker.
• you would like more capacity: with the same number of cells, cells with a higher capacity can be fitted if the electronics and charger permit this following our inspection. More about the upgrade
• you would like to conserve resources: the housing and electronics remain in use instead of being disposed of together with the entire battery. With the “right to repair”, the EU also aims to ensure that goods are repaired more often instead of being replaced.^[2]

When a new battery is the better choice

• The battery is damaged: swollen, deformed, leaking or with cracks in the housing. In that case, please do not use it any more and do not ship it. Recognising warning signs
• Important parts cannot be repaired, for example a badly damaged housing or defective electronics for which there is no replacement. Only an inspection will show whether this is the case.
• A manufacturer’s or retailer’s guarantee still applies: in that case, please contact them first. Work on the battery may affect an existing manufacturer’s guarantee.
• A new original battery is readily available and is the simpler solution for you.

If in doubt, please ask us. On the basis of photos, we will tell you without obligation whether cell replacement is an option for your battery. Send a request

What the costs depend on

There are no fixed prices for cell replacement, because every battery is constructed differently. The main deciding factors are:

1. the number of cells. An e-bike battery with the configuration 10S4P, for example, contains 40 cells, a small power tool battery often only 5 or 10.^[3] What 10S4P means
2. the type of cells: format, capacity and current rating – matched to the device, motor and charger. We use branded cells.
3. the effort involved in opening and closing the housing, in connecting and in insulating.
4. additional parts if required, such as new cell holders, which we design ourselves when needed and produce by 3D printing.
5. return shipping, if the battery is not collected. Shipping and payment

Our initial assessment on the basis of photos is non-binding. We will state the binding price before we begin the work.

What we need for an assessment

• a photo of the battery, ideally from several sides,
• a photo of the rating plate showing the voltage (V), capacity (Ah) or energy (Wh) and model,
• the manufacturer and model of the e-bike or device,
• a short description: what is the problem, since when, and approximately how old is the battery?

Send a request Decode the rating plate