Was chasing a parasitic draw in my 97 pickup. Dad's ammeter would PEG when hooked up to the system. The fuse in my digital multimete popped when I tried to, so I assumed(operative word) that there was a bad parasitic draw. Battery would die in hours and be incapable of starting the truck. Limped it to work, tested the battery.... tested bad. Charged it for about an hour. Tested again, still tested bad. Son of a bitch. The brand new Carquest battery(yea not exactly an impressive brand) wouldn't hold a charge. I put the damn thing in trying to fix a problem and it turned out to be junk from the get go. So Carquest replaced the 650CCA battery they sent me originally with a 1020CCA battery. Ok, guess I can accept that. Which hasn't lost a bit of power since I've put it in.