I bought 2 Group 27 batteries from the Mall,no problems here.
I sent an email to them inquiring about their repro batteries. This is the response that I received:
"All classic car batteries right now have a small AGM battery in a reproduction case. These AGM batteries used in the reproduction case are the same batteries used by racers. The caps are for cosmetic purposes only and the caps on these batteries do come off. "
But I forgot to ask about charging. Do the AGM racing batteries;Odysssey, TurboStart, etc. require a special charger? I have been using Battery Tenders for my lead acid batteries.
David