The NOCO Genius1 1A Charger and Maintainer is designed for 6V and 12V batteries up to 30Ah, including lead-acid, lithium, wet, gel, maintenance-free, EFB, AGM, and calcium batteries. It features an integrated thermal sensor for improved battery life in addition to hyper-density technology. The Genius1 also has four charge modes including 6V, 12V, 12V AGM, and 12V Lithium. It can charge dead batteries as low as 1V with Force Mode which allows manual charging for extreme dead batteries. Genius1 also features the X-Connect OUT interchangeable connector to utilize the included battery clamps in addition to XConnect accessories.