Features and Benefits:;GEN5X1. Similar to our GENM1, only better. It's 51% smaller and delivers 43% more power. It's one of the best performing onboard marine battery chargers we have ever made. A one-bank onboard battery charger rated at 5-amps for 12-volt batteries, including marine, boat, starter, and deep-cycle batteries. Independently charge and control each battery bank with selectable charging modes - including 12V, 12V AGM, 12V Lithium, and 12V Repair Mode - for all types of lead-acid and lithium-ion batteries.