hi I need help I have a battery pack and 1 battery goes off balance they start at the same voltage but then 1 will be .5 v higher. So cell 1 - 4.15v cell 2- 4.20v if I continue charging cell 2 will charge to 4.25v using this charger and protection board.
https://www.ebay.com/itm/10pcs-2S-L...e=STRK:MEBIDX:IT&_trksid=p2057872.m2749.l2649
https://www.ebay.com/itm/18W-Smart-...=0&_nkw=2s+8.4v+smart+charger&_from=R40&rt=nc
https://www.ebay.com/itm/10pcs-2S-L...e=STRK:MEBIDX:IT&_trksid=p2057872.m2749.l2649
https://www.ebay.com/itm/18W-Smart-...=0&_nkw=2s+8.4v+smart+charger&_from=R40&rt=nc