on my way to our property in Colorado i stopped for a snack and started smelling rotten eggs, didn't really think too much about it, after we arrived i continued to smell this smell from the truck, opened the hood and found my passenger side battery hot with steam coming from the top. i knew the batteries in the truck were on there last leg but i have never had one heat up like that. before i left Dallas the driver side batt. still showed green in the view plate but the passenger side had showed black for a while. . the truck still started fine but by the time a left wall-mart after getting two new batteries the volt meter on the truck wouldn't ever even get close to the 14 mark. anyway to make a long story short i changed both batteries and everything seems great but i am just curious what would cause a battery to burn up like that?

