3 ms·
Yep, and once you start using custom DC UPSes the biggest issue will be battery chargers that kill lead-acid batteries. Things are better with LiFePO4 these day
by zzz61831 6y ago
Yep, and once you start using custom DC UPSes the biggest issue will be battery chargers that kill lead-acid batteries. Things are better with LiFePO4 these days, but for lead-acid I haven't found a solution except for literally hacking a pulse charger and battery management on top of arduino.
- dreamcompiler 6y agoI'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/ https://www.rvweb.net/best-solar-charge-controllers-for-rv/