After using a 3S, 950 mAh, 25-50C LiPo battery I went to charge it. After about 2 min. on the charger I get an error message "Over Charged Cell". Checking the individual cell voltages they all read about the same: 3.84V, 3.84V, 3.85V. Is this an indication of a bad battery or is my charger screwed up? I'll be charging a 2200 mAh battery later today and I'll see if I have the same problem.