NOCO GENIUS2X2 4A 2-Bank Battery Charger Engineered for High Performance Built compact and energy-efficient, the NOCO Genius 2x2 Battery Charger charges a host of battery types. It is specially designed to charge 6 or 12-volt lead-acid automotive, marine, lithium-ion, or deep-cycle batteries. With two banks and 4 total amps of output this charger powers vehicles like cars, motorcycles, and lawnmowers. Thanks to switch-mode technology, the 2x2 converts from A/C to D/C power efficiently and safely. The internal microcomputer is precise in optimizing charging, creating a high-quality design in a more compact, portable form factor. The on-body clamps are designed for a stronger connection force and have a high clamping range, providing maximum power to hard-to-reach battery terminals. Have safe and versatile charging options ready for any future plans! Automatic Detection, Advanced Design The Genius 2x2 acts as a battery desulfator and is able to restore your batteries to full working order. Automatic detection determines both acid stratification and battery sulfation to revive any diminished battery performance. This way you have a powerful engine start and an overall extended battery lifespan.