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Hi, On my boat I have a 600Ah DIY 12V bank with Winston cells installed 6.5 years ago (cells with sequential serial numbers). The cells are well top balanced and yesterday the voltage for one of the cells dropped suddenly by more than 100mV compared to the other cells... then later came back to...

Hi, I made some observations that lead me to believe a cell is not aging as fast as the other ones. Here is the setup: 300 Ah Winston cells (2016) setup as 2P4S (600 Ah 12 volt battery). Cells have sequential serial numbers. Cells are never charged at more than 3.46 VPC. Float at 13.2V (or...