First batteries were the Trojan GC 6v batteries, they lasted 4 years. the next set were the Sam's Club which I bought in 2007 and are still in use. They were almost 1/2 the price of Trojan. I dry camp 95% of the time but fully charge them after a week of dry camping, equalize 2-3 times a year and when not in use fully charge when they reach 80% SOC.(I don't keep batteries on a constant charge} I think how they are maintained is more important than the brand. I would buy the Sam's Club batteries again.