Been running a pair of 110Ah AGM batteries on the boat for about four years now and they're starting to show their age — taking longer to charge and the resting voltage is sagging more than it...
Great thread — this is almost exactly my setup on the boat. I'm running a 200Ah Drift paired with a SmartSolar 100/20 and after a fair bit of experimenting I've settled on 14.2V absorption, 13.5V...
Really useful thread this. @LisaHunt I'd echo what @PhilFox99 is saying about winter being tough, but one thing worth mentioning that often gets overlooked is panel angle.
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