I have a 10s1p LiPo battery pack with BMS that have 2 cells “puffy” cells.
I’ve removed them from the series and found replacement cells matching voltage (3.6v) and discharge (I think).
Question: Should I connect them first (series and balance leads) and THEN charge the 10s together or charge the current 8 and then add on the 2 remaining?
The current 8 does not have any voltage, sitting on the shelf for about 6 weeks. The 2 new ones just arrived from AliExpress and have a 3.5v reading, which seems to be within range.