<p>Introducing the revolutionary NOCO® GENIUS1 6V/12V 1A Smart Battery Charger, Maintainer, and Desulfator. The GENIUS1 stands out as 1 of NOCO's most powerful, highest-performing, energy-efficient, and compact chargers yet. The GENIUS1 serves up a 6V or 12V battery charger, battery maintainer, and battery desulfator rated at 1A for lead-acid automotive, marine, and deep-cycle batteries, including flooded, gel, AGM, and maintenance-free batteries plus lithium-ion for unparalleled versatility. Precision charging integrates a thermal sensor that detects the ambient temperature and alters the charge to eliminate over-charging in hot climates or under-charging in cold climates. The GENIUS1 can charge dead batteries as low as 1V. Or, you can use the game-changing Force Mode that lets you take control and manually begin charging dead batteries at down to 0V. Fully automatic, worry-free operation means you can leave it for year-round use. Beyond charging and maintaining your battery, this NOCO GENIUS detects sulfation and acid stratification and restores lost performance for stronger engine starts and extended battery life.<br></p> <ul> <li>Smaller yet more powerful than ever</li> <li>Charges 6V or 12V lead-acid automotive, marine, and deep-cycle batteries including flooded, gel, AGM, maintenance-free, and lithium-ion</li> <li>Thermal sensor detects ambient temperature and alters charge to avoid over- or under-charging</li> <li>Charges dead batteries as low as 1V</li> <li>Force Mode manually charging on dead batteries down to 0V</li> <li>Detects sulfation and acid stratification and restores lost performance</li> <li>Compatible with all types of vehicles: cars, motorcycles, lawnmowers, ATVs, tractors, trucks, SUVs, boats, classic cars, hot rods, and more</li> </ul>