Mavic Air 2 dead BMS

[woody565]

Hi all,

I opened up an Air 2 battery to replace a dead cell.

I have replaced the cell and all cells are fully charged but now I cannot connect to the battery via the cp2112 to reset the pf and the battery switch does nothing.

I tried a know good battery and the cp2112 connects straight away.

Any ideas?

Cheers

Dan

 

[old man mavic]

@woody565 ,i believe that there is anti tamper built in to the BMS which comes into play when the battery is opened and any work is carried out to the battery i think that once triggered it can not be reset, maybe someone with more knowledge can advise you