well, my antique auto battery brand mopar replica, (the glass mat version), took a dump on me. it had a loose negative post, and would not hold a charge anymore. it would charge, and show fine, but it would not recover once a load was put on it. crank on it more than a few times, and it would be dead. tried several methods of trying to help it get it's 'memory' back, but to no avail. contacted antique, and they were STELLAR to work with. i was out of the one year warranty, but they said pay for shipping one way, and they would take care of it. got a brand spankin' new battery, and it works great! while it was out, i put in a new battery hold down setup, mine was too short, and was looking it's 40 plus year age, even after refurbing it a bit.........