Well this scared the beejezus out of me. I have an 8s lipo that has two 4s balance connectors to supposedly make charging easier. So I ordered a balance board with two 4s ports (and an 8s wore to the charger.
Excited that it finally came, I plugged the first 4s wire from my 8s pack into the board and it was a non issue. Then I started to plug the second 4s connector into the board and a pretty damn big spark and a bit of smoke followed. It happened on first contact and I immediately pulled them appart. (Tiny fraction of a second of contact. But it was enough to blacken the plastic on the balance wire and the balance board.
My questions are:
Wtf was that about? Is that normal? I was certain that’s it was not plugged in backwards. And these batteries have never been used before. They are brand new.
Do you think I fried anything beyond repair?