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NinerBikes's avatar
NinerBikes
Explorer
Mar 31, 2015

Latest Equalize Charging w 20 Amp Solar Charge controller

NOTICE: Disconnect battery from RV before trying this, you don't want to damage any on board electronics with charging with voltages this high! I have this unit hooked up to 150W poly solar ...
BFL13's avatar
BFL13
Explorer II
Apr 01, 2015
It is all about how long do the batts remain undercharged. If you get to near full every day, then an overcharge once a month is fine.

If you sit there for a week letting the batteries slowly fall to 50% before recharging, that is harder on them for sulfation, so now you would need to equalize more often--even once a week after that one recharge they get a week.

"It depends."

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