BBS02 got error 07 before, now error 12

[greeneyes]

On Aliexpress they said it doesn't support 52V and that I damaged the controller by using a 52V battery... If I find no water, can I just buy a different...

[greeneyes]

It's stable below 85%. But once I charge to 100%, it works at first but starts to show errors even below 85%.

[greeneyes]

I guess I'll try to see if aliexpress will accept a return, there is supposed to be a one year warranty. Is it probably just the controller? But I voided...

[greeneyes]

Wouldn't it be happening all the time if it was water? I only cycled in the rain maybe twice and not for long.

[greeneyes]

I'm measuring via display and connecting to the battery via bluetooth, the app shows voltage as reported in the bms. I don't have a multimeter since I'm...

[greeneyes]

Two weeks ago I tried charging my 52V battery to 100% for the first time (I was using 85% until then). It worked fine for maybe half hour but then it...