Reddit reviews NOCO Genius GENM3, 3-Bank, 12-Amp (4-Amp Per Bank) Fully-Automatic Smart Marine Charger, 12V Onboard Battery Charger And Battery Maintainer

A 12 amp (4 amp per bank) on-board battery charger for charging and maintaining three 12-volt batteries independently.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.