OF
Well-Known Member
All of this shelf-sitting can add up to considerable time. Could it not be the case that the cell is fully charged at the point of manufacture, and then simply depletes over time – rather than an intentional partial charge?
No, that's not the case, please read the BU article?
The terminal voltage doesn't degrade over time, or should not. If it was charged to say 4.15 Volts, it still is. The CAPACITY (ability to hold charge) suffers, it's no longer a 3200mAh cell. This (inability to hold a useful charge) is what generally 'kills' them off at a typical 300 cycles. That is we replace them for that reason, just like the cell phone or laptop you left on charge so it would 'always be ready'?
Brand new cells should 'always' arrive at that level, distrust any that don't. They should not 'self discharge' and should not have ever been fully charged.
OF