So I bought a KingFish ego-v v3 mega battery last month on the 11th. When I used it this morning it had a 3/4 charge on the battery. I turned it off, stuck it in my pocket and went to work. The next time I tried to use it, about 8 hours later, it wouldn't turn on. This is highly irritating. So now I guess I have to buy another battery, the question is what should I get. I want something with the same threads so I can still use the tanks I have, IJoy - Faatank-G. Any suggestions would be great or should I get another of the same and hope this doesn't happen again.