**300W of solar panels in winter, even to a MPPT controller, is no match for two depleted 900CCA AGM auto batteries. Split them out of the string and charging them separately to equalize before connecting them back together. #batteries
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**300W of solar panels in winter, even to a MPPT controller, is no match for two depleted 900CCA AGM auto batteries. Split them out of the string and charging them separately to equalize before connecting them back together. #batteries
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__josh
In response to this post@ai6yr Any thoughts about using LFPs?
@__josh Yes, the cost at the time I put this system together was still very steep. Weight is not an issue (it just powers a shed and a laptop, normally). The auto AGMs are sufficient USUALLY (I actually powered a bunch of stuff in the house during the PSPS outages here off the shed, way more than the usual load... )
by AI6YR Ben ;
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