I plugged my losi 2200mah 4s lipo on my charger and it gave me an error that saids low voltage. I couldnt get it to charge. I checked the cells and i have one on 0 and the rest were on 3.7. I didnt know what to do so i decided to connect the lipo with out the balancer and charged it until i saw the voltage go up. Then i connected the balancer and all my cells started to charge. Did i do something i wasnt supposed to do, to get the dead cell to work again or is there another way to repair the cell? Does it supposed to get warm while charging?