I fried my Yellow top in Moab during Blazer Bash when my alternator "voltage reg" went out. It was pissing acid all under the hood!! Luckily it decided to go ca-poot sp at the end of Pritchett Canyon. I took it back and had it replaced under warranty told them it wouldn't hold a charge I installed a new alternator and had the battery sitting in the tray till today when I went to hook it up. It would not crank over, so I thought maybe something else was wrong. I turned on my ARB compressor and it sounded really weak. So I proceeded to jump it with the Dodge and let it charge for about 20 minutes. I turned it off and it would not crank So I yanked that one out and headed back down to the store where they started to look at me suspicously since I had just been there last week. I told them I would give them a 3rd try and if it didn't work I would just buy the store brand battery. Well luckily this one fired up the engine with no problems Jeez!!!