Review on 🔋 NOCO Genius GENPRO10X2 Marine Charger - 2-Bank, 20-Amp (10-Amp Per Bank) Smart Battery Charger, 12V Onboard Battery Maintainer, Desulfator, and Temperature Compensation by Dan Barrett

Has worked flawlessly from day one. Keeps my two deep cycle 12V AGM batteries fully charged AND quickly recharges them when they're down to 40%. I modified a 1.5kVA server rack UPS to daisy chain these marine batteries to power two of my servers during a power outage. The UPS came with a set of 4 smaller 6V batteries which were expensive to replace regularly. Although the UPS can charge 2 batteries continuously for several hours, I bought this NOCO to speed up "full recovery" loading as sometimes after a short "recovery period" the power goes out again.