Check this out.
This was a brand new pack!
Has this happen to anyone else? I think im done with hobbyking basically because there is ZERO customer service. Ive tried to email support and no response. Has anyone received a replacement from hobbyking?

Somebody at the track suggested it could be a lose bullet, but i check all solder joints and they are solid. Plus this battery was the only one that melted down internally and it was not even warm. I guess you get what you pay for. The venom lipos come with lifetime replacement, I think im going that way on the next purchase.