Alright custom #ebike dudes. I need help. I have no idea what's wrong, but my Ebike #battery will not turn on. As far as I can tell, it's fully charged, and I don't think any of the cells have failed.
My GUESS is maybe the #BMS has failed?
How do I go about testing and solving this. I have basic tech skills, as I'm a computer repair technician, but I don't normally do board repairs and diagnosis.
Symptoms:
Plug charger in, charger will charge for a few minutes, then change to green, as if the batter is fully charged.
Turning on the main switch under the battery does nothing. Not even the power level LED'S on the battery light up.
Not knowing what to test, I can get multiple -5v readings out of various locations. No idea why it's minus, as the neg probe is connected to the main neg output.
#ebikes #ebikeconversion #faulty #help #techrepair