Recent content by Chris Maluszynski

It’s a KT controller (see image) from Alixpress

ideally of course I would use everything as is with the old controller and the new battery, but this I guess is bound to fry the controller.

This is getting a bit complicated for me now as I was fearing. I would like to use as much as possible from the wisper bike: the PAS, the throttle (only for pushing the bike), the break sensors (if needed), the lights etc. I understand I cannot use the display. I do have a KT-compatible one that...

So I do actually have a controller for 48V. But how much would I need to swap out on the bike? Display I’m guessing. Anything else? Pedal sensor? I hope not the break sensors. Also the connectors seem mostly different, but I guess if there’s a will there’s a way

David, could you tell us if the controller on this bike would handle a 48v battery?

Another measurement confirms the dead cell bank. I guess this means the BMS is faulty also then? 3.3 7.4 11.0 11.0 15.1 19.1 23.2 27.3 31.3 35.4

I will measure again now

Ok. Maybe i even have a 48v controller somewhere. But it would be so much easier to use the one on the bike as I wouldn’t have to switch displays, brakes etc right?

Scary stuff. And now I'm without a bike which I'm very dependent on (I live on an island with no cars, and need to haul everything for 2km on the bike to the house from the ferry). I do however have a 54V sharkfin battery. If the cells fit in the Wisper case, maybe I could replace the pack? Or...

I actually left it charging , so you got me a bit worried. What could happen?

It sounds like this could actually be dangerous? Should I be worried?

Hi David The bike is outside Oslo in Norway. battery is behind seat post

yes. Where would I look for cell packs that would fit in this case? I could install them myself.

It’s the 16a version

Isn’t there a way of charging the bank with 0 voltage separately? Or is there nothing more to do at this point?