I've made the switch to lipo's and have a question regarding one battery. Mine are Traxxas 7600mah 2S2P. So far I have balance charged them twice and storage charged between uses at 3.85V / cell. My charger is a multi charger and not Traxxas so let's not discuss that.
For both charges so far, Battery 1 charges as expected and stops when 'full' @ 8.4V, each cell balanced @ 4.2V. Battery 2 also reads 8.4V, each cell @ 4.2V but does not stop charging. The first time I stopped it when battery 1 stopped, today I let it run for 20 mins and 900mah more than battery 1 before stopping the charge.
Is this an early sign that battery 2 has a problem?