So I have a 6 month old TP5000 40C that I noticed started taking forever to balance. Over the past couple weeks I have kept a close eye on the voltage of each cell and 1 of the cells self discharges at about .01 to .02 volts a day, the other cell does not loose anything. The weird thing is the pack still feels great and is not puffed or anything. I just keep the blinky on it at all times to keep it in balance.

What would cause this self discharging??

Obviously, there's a prob with that cell thats losing voltage daily. It prob has some kind of internal damage or that cell was not right from the time it was made. As long as it doesn't start swelling and runs normally, it's prob safe to cointinue to use.


I'd keep an eye on it like you'er doing.