Kalkhoff Battery Rebuild For Panasonic Mid Motors

Do you have a Kalkhoff e-bike with a Panasonic mid-mount motor that's not lasting as long as it once did? Send in your battery to us and we will replace the cells, upgrading your capacity and restoring it to better than new! Their original specifications were 259 Wh at 25.9V and 10 Ah. We can upgrade that to 15 Ah at the same voltage for 389 Wh and 50% more range! 

Kalkhoff Electric Bike Battery for Panasonic Motor

The Derby Cycle version below (shown for an Agattu Impulse 8 model) has a 10S 5P configuration with upgrade options up to 15Ah to give you almost 40% longer range than the original!

Kalkhoff Derby Cycle e-bike battery

Just fill out our Battery Intake Form and send us your battery and charger. We will contact you with a quote and upgrade options. We recycle your old cells and re-use your case so you know it will fit back in your bike. We use brand new, grade A lithium ion cells and warranty all of our work for 12 months.


40 comments


  • Sue Tatham

    Hi can you give me a quote for a 12ah nky304b2 li-ion battery. Ni-co-min/li battery. This is all the info on battery I can find. To refurbish it . Thanks.


  • EBike Marketplace

    @Dragan – We can’t diagnose your error codes, but you should check the voltage of your battery to see if it’s good or not.


  • Dragan Vardić

    I have panasonic NKY317b2 battery and it stopped charging. When I press indicator key, leds run 6 times around one by one. When I press key for about 8 sec, four leds turns on and after 3 or four sec turns off. What does it mean? Is my battery dead? Thanks.


  • EBike Marketplace

    @Simon – We’ll be in touch with our current pricing.


  • Simon Gardiner

    I have a Kalkhoff bike using an Impulse 17Ah 36 volt battery which has now run out. I would like to get it recelled/replaced.Please email me details cost etc. I will arrange collection at my work place. Thanking you in advance


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