raoultrifan
Headphoneus Supremus
Well, it will actually not stop charging at all, just the current when charging is so low, that batteries will never fail because of that. It's exactly like a car battery: if charged on the car will not overload, but if charged on dedicated powerful charger may blow away if left more than 12-16 hours.
So, no worries to overcharge O2.
So, no worries to overcharge O2.