Group: Forum Members
I'm curious about how often my fellow blue water cruisers change their service batteries. We use marinized lead-acid batteries, which I have to change every 2 years, even though we are very careful. Is it just us ?
Michel on Velvet.[/quote]
No, it's not just you!
I used to get about two years out of "leisure deep-cycle" lead acid batteries. Then a battery supplier suggested that I change to a pair of 6V wet golf cart batteries, as he was supplying them to commercial yachts with good results. I got eight years out of a pair of Trojan T105 golf cart batteries, and then only changed them because I was headed out across the Pacific, and didn't know where the next pair were going to come from. The second pair, a different brand but the same size, lasted a similar length of time, and were not near to failing when I sold the boat. I think that golf cart batteries are the cost-effective way to go, so long as you don't intend to invert or flood your boat (!), and so long as you don't mind checking the electrolyte levels at suitable intervals.