Reproduction from New Castle when they were made by New Castle,group 27,almost 15 yrs old,also,never been on a battery tender ! If you doubt,I still have the receipt.Have only had two since I finished the car in 1992.
Same here, 2 repro group 27 batteries from Turbostart, 11 yrs on one battery, 9 yrs on the other before they gave up the ghost, no battery tenders, no nothing, just treated the battery like a POS, no maintenance, go months sometimes without starting the cars, start all the time...personally I think it has a lot to do with how fit the wiring/charging system is, that determines how long the batteries last, I run new repro harnesses from M&H, and the reproduction line of Powermaster Mopar alternators.... but as they die, they now get gutted for a modern battery insert as Turbostarts repro batteries are no longer made unfortunately... the lead acid line of repros offered by others were just plain junk, the Turbostart gas mat AGM were awesome...
Mike
