Join Date: May 2007
Location: Glen Cove, NY
Thanked 95 Times in 89 Posts
Rep Power: 9
Re: Battery life short? What to check?
Allowing a battery to sit discharged will kill it. I suspect that's what happened. I figure a good quality deep cycle should be good for 5 years, maybe longer. A starting or combination start/deep cycle (like a Diehard Marine/RV) is good for 3 or 4. That assumes good maintenance.