So adding on to the other post "are they any good" I charged up two other batteries I had and ran them in my truck I could tell the truck had more power and was faster and lasted longer then with the other batteries so I've concluded it's not a charging problem but something wrong with the batteries. Is it cause they are brand new and need to be charged a few times? Cause they charge up fully and ten minutes later they die, plus like I've said already two popped just on a normal run