My neighbor's son has a truck stored in my barn. I noticed him down there yesterday - he took it out to work on it and brought it back later. He had to move a couple of tractors to get it out and I noticed that he left a Ford 4000 Diesel belonging to another neighbor up at the front of the barn and not back out of the way. Didn't think too much about it and while I was down in the shop today I thought I'd move it back where it belonged. Climbed on and stuck the key in and turned it. Click, click, click! Dang dead battery!
Stuck the little charger on it while I was tinkering in the shop. It was charging about 6 amps. Couple of hours later I walked back over and the charger was down to a trickle. Un-hooked the charger and walked around, climbed into the seat, hit the key and grunt, grunt, BANG!
Blew the top off of the battery! Smoke and acid went everywhere!
Got down, shook the stuff outta my britches and took a look after the smoke cleared.
Blew the top clean off'n the battery and split the case.
Talked to my neighbor and found out that he had been back there with his son yesterday and it was clear dead. He put his big booster - charger on it and couldn't get it to turn over. Said he figured it had a shorted cell - I told him - not any more.
Woulda been nice to have had some warning!