Wannabe nailed that one! If I didn't get those Exide/WalMart/? batt. cheap, I'd be on them Trojans. They're dependable and last 2x longer when taken care of properly. My buddy has over 800 cycles/charges on grp 27's, not counting conditioning. I've been getting about 300 out of them Everlast/Exide 27's. The Optimas haven't lasted longer, but they charge faster and your supposed to charge them pretty hot. Truth is, buy as big of battery as possible and take care of them. The maintenance thing is different with all of us, just keep em charged and you should do alright.