OptiMate 3 4-Bank 12V 0.8A Battery Charger, Tester & Maintainer

The OptiMate 3 is an all-in-one tool for caring for up to four 12V lead-acid batteries at once. It diagnoses, recovers, charges, tests, and then optimally maintains each battery automatically through a 7-step program.

All four charge banks are electrically isolated and operate independently, so you can charge separate batteries or batteries wired in series. A dedicated desulphation cycle helps revive low-voltage batteries, and the charger tests battery health and warns you if a battery is losing charge. It's safe to leave connected around the clock, with spark suppression and automatic shutdown if short-circuited or disconnected.