Is my lipo dead?
I have a 5000mah 30C 3S LiPo that I have had for a while sitting in my cupboard. About 4 months. I didnt charge it once from factory so it just stayed in storage mode the whole time. I had 3 others sitting with it (same batteries) which are all perfectly fine but this one isnt.
The cells will not balance properly. They are charging but 2 of the cells will not balance out to 4.20V. Is the battery dead? Should I discharge? I want to try to revive if I can.