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Hey , ye seems to be working great. All good so far

Looks like it’s a cheap bms just seen the same one on eBay for 8.99 Do people repair them or do u just get a different bms? What’s a decent quality 10s 36v bms ?

Thanks very much for info , and advice. I’ve had a propper look round the board with magnifier and can’t see any damage / heat or swelling at all.

Update There’s 41.4 across b- & b+ 3.2 across p- & p+ no continuity across b- & p- If I short b- & p- there is 41.4 across p+ & p- Any help is much appreciated.

Hilarious

Yes , It was the bus connections that made me think that , I figured there was 3 in parallel and three in series on each bus , that’s what it looks like but as it’s clear to see I ain’t no expert ! Ask me a plumbing question So it looks like it’s going into a sleep mode and not waking up ...

i hope it’s this , it would make me very happy ( apart from wasting hrs for no reason ) I will find out in the morning I guess

I think it’s 5x 6 not 10x3 If it’s 41.6 should be ok Each cell seemed to measure 4.1 v without disconnecting which I seriously don’t want to do.

Wow thanks for the responses. Ye agreed , it prob isn’t the best idea. After YouTubing for hrs I’m guessing what I’m doin is switching the overload / overcharge transistor into a different position rendering the battery pack useable again. Not sure why it’s switching the current off in the 1st...

Wat am I doing to sort it out I meant to write. It’s obviously achieving something but I can work out what. There’s no reset button on the battery I can see btw

Please could someone explain this to me in simple language. My new battery pack is fully charged and showing 40v ish. If I leave overnight it shows about 2v and won’t take any more charge through the charging port. if I reverse charge through the main power feed after 10mins it’s showing full...