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by dreamcompiler
2145 days ago
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I've had good luck with solar charge controllers for RVs, e.g. [0]. You have to drive them with DC of course but they're designed to be driven by very poorly-regulated DC like that coming from a PV panel. So a cheap AC/DC converter (either switched or linear) driving one of these things should preserve your batteries. Most of them also provide a DC load output which gets automatically switched over to the battery if the input DC (or in the case of a UPS, the input AC) fails. [0] https://www.rvweb.net/best-solar-charge-controllers-for-rv/ |
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