While I was on holiday, I was bashing my trophy buggy flux (6s) when it suddenly stopped... I went to see that the batteries weren't giving any power, so I opened the lipo to see that the red wire had disconnected on both batteries....
Oh and when my uncle tried opening one battery with a knife he cut the middle cell abit which died already...
Both batteries are the same zippy 3s 5000mah 20c, is it possible to swap the bad cells with good ones? I tried soldering the batteries but it wouldn't happen, so should I try and take one good cell of the cut lipo and swap it with the badly soldered one?