“Balanced charged this battery and flew with it a couple of times, then the #1 cell went bad after I thought that it had balanced charged a 3rd time (battery was maybe a month old). My low voltage alarm went off when I checked it before the next flight. Three different testers showed that #1 cell with almost no voltage, the 2 other cells each showed a full charge. Tried charging just that 1 cell, tried bringing the battery down to storage voltage and cycling it a couple of times, but couldn't revive it. After that my charger only recognized the battery as a 2S, I assume because of the 1 dead cell. I have 3 other Admiral batteries, both 2S and 3S, and they've been great.Motion RC replaced this bad battery with a new one, and as usual, I couldn't be happier with their excellent customer service. Going forward, I feel confident buying and using Admiral batteries, knowing that Motion RC stands behind their products. great company to do business with.BTW, any Radio Shack store will take your unwanted LiPo batteries for safe and proper disposal, don't even need to discharge them first, just drop it off at the store.”
“I ordered 2 of these, one had all 3 cells balanced virtually perfectly, the second one had one cell .5 volts lower than the rest which usually signals problems. I balance charged it, stored it through 2 cycles and it appears fine but I've only had the chance to use it 2 times due to wintertime.”