EM3EV BMS Reset Following Short

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joshseitz   100 W

100 W
Posts: 139
Joined: Jan 17 2010 2:14am
Location: Portland, Oregon

EM3EV BMS Reset Following Short

Post by joshseitz » Feb 20 2021 2:51pm

The Andersons on the pigtail connecting the output from my 14S pack (in a backpack) to my BBSHD melted near LVC, resulting in a short.

The BMS did its job and cut-off, and the battery takes a charge, but the BMS appears to still be in protect mode. The display will power up initially, but not long enough to get through the password (that's another story - somehow the display is locked and I can't get in. Not sure if I inadvertently set a password or what).

I tested with a friend's battery and display, and the motor/controller is fine. And when connecting his battery to my display, it maintains power just fine (I just can't get past the password screen).

Any help is appreciated!

aleks68   10 µW

10 µW
Posts: 5
Joined: Mar 15 2021 2:50am

Re: EM3EV BMS Reset Following Short

Post by aleks68 » Mar 15 2021 4:22am

as an option, try to turn off the power and the loop from the BMS for a short one, it goes into defense, it usually helps

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