replacement BMS

[jhinshel]

I have a 17.5ah 48v battery which has suddenly stopped working. The pcb smells of magic smoke (see attached). I would appreciate any advice about how to ressurect the battery.

 

[Nealh]

As per the thread title . if the BMS has failed it needs replacing.
Has one checked for a discharge fuse failure ?
Does one see any voltage at the output/discharge ?
Typically with the battery switch on a BMS will show residual voltage of approx. 0.5v .

 

[saneagle]

I have a 17.5ah 48v battery which has suddenly stopped working. The pcb smells of magic smoke (see attached). I would appreciate any advice about how to ressurect the battery.

What is that pcb? Where did it come from? Can you show the rest of the battery? Can you show the other side of the pcb?