Bird 2 Battery Behavior

Voltron

1 MW
Joined
May 2, 2013
Messages
2,803
Location
Santa Barbara CA
It could be a bunch of stuff.
You have a digital voltmeter?

First is make sure the charger actually works, it's a pain to start cutting open the shrinkwrap on the battery to probe it when it's really a bad charger.

If the charger works, then it's start cutting it all open to get at the BMS, and checking the voltage balance between the groups.

I've cut open a lot of non working batteries by now, with maybe 5 percent actually having something in there that the average new user can fix, just for some expectation management.

There's lots of threads with pictures of cut open batteries to get you an idea of what you're getting into in there.
 
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