Reddit reviews NOCO Genius GENM1, 1-Bank, 4-Amp (4-Amp Per Bank) Fully-Automatic Smart Marine Charger, 12V Onboard Battery Charger And Battery Maintainer

A 4 amp (4 amp per bank) on-board battery charger for charging and maintaining one 12-volt battery.Safely charge all types of lead-acid batteries from 20-120Ah, including wet, gel, AGM, and deep-cycle batteries.Advanced safety protection featuring spark-proof technology, plus reverse polarity, thermal, ignition, and overcharge protection.Rugged and waterproof construction capable of submersion down to 3-meters and rated IP68 and NEMA 6P.One of the most advanced battery chargers in its class, which is certified to UL1236, ISO 8846, 33 CFR 183. 410, plus backed by a 5-year .