Dual Pro SS2 Auto 20A - 2-Bank Lithium/AGM Battery Charger

The Dual Pro SS2 Auto 20A - 2-Bank Lithium/AGM Battery Charger is purpose-built for serious anglers and boaters who demand reliable charging performance on the water. Modern fishing boats and cruisers often run mixed battery systems—dual cranking batteries, trolling motor lithium setups, or AGM house banks—and this dual-bank charger eliminates the guesswork by automatically detecting battery chemistry and charging accordingly. Whether you're managing electronics before dawn or topping off after a full day on deck, this charger keeps your power systems healthy and ready for the next trip.

Built with intelligent microprocessor control, the SS2 Auto identifies whether each bank is Lithium or AGM and adjusts charging profiles in real time to maximize battery life and prevent overcharge damage. The 20-amp output per bank delivers fast, efficient charging without the heat signature of older analog designs, and the fully automatic operation means you simply connect and walk away—ideal for dock charging or overnight charging cycles. Compact dimensions of 11 x 10 x 14 inches fit easily in engine rooms, lazarettes, or console cabinets, while the 12.5-pound weight won't strain mounting solutions or portability on smaller vessels.

This charger is ideal for boat owners running Lithium batteries alongside traditional AGM banks, tournament anglers with high-drain GPS and sounder systems, or anyone transitioning to Lithium power without replacing existing infrastructure. The two independent banks mean you can charge a main engine bank and a trolling motor bank simultaneously, or dedicate both channels to a larger Lithium setup. Straightforward terminal connections work with standard marine battery cables, and the automatic shut-off prevents trickle damage during extended storage—a critical feature for seasonal boaters and those operating in variable freshwater or saltwater environments.