Meet the NOCO GENIUS1, one of our most powerful, highest-performing, energy-efficient, and compact portable universal battery chargers yet. The GENIUS1 is a 1-amp (15-watt) - 100-240VAC 50-60Hz - 6-volt and 12-volt heavy-duty battery charger, battery maintainer, trickle charger, float charger, and battery desulfator for up to 30 amp-hours. It's designed to charge and maintain all types of sealed lead-acid and lithium-ion (lifepo4) batteries, including flooded, gel, maintenance-free, AGM, SLA, VRLA, as well as automotive, marine, RV, powersports, and deep-cycle batteries. Its advanced battery repair regenerator mode uses slow pulse reconditioner technology to automatically detect battery sulfation and acid stratification, restoring lost battery performance for extended battery life. It can be used and stored almost anywhere - home, garage, mobile, bench, or in car - to charge and maintain any battery - even plug in through your vehicle's 12V auxiliary cigarette lighter port. Its next-generation charging regime utilizes fast charging microprocessor technology to rapidly recharge batteries without any manual intervention. It's a completely automatic, worry-free, professional, and commercial-grade intelligent battery charger with zero overcharge. Designed to be dual purpose - both indoors and outdoors - providing weatherproof and waterproof protection from the outside elements during any time of the year, including winter. Its X-Connect battery connectors - better than SAE - allow for quick-connect permanent connection or connecting directly to the battery terminals. A digital display provides the charging status and tests diagnostics for multiple conditions such as a dead battery, bad battery, reverse polarity, and more.Meet the NOCO GENIUS1 - Similar to our G750, just better. It's 35% smaller and delivers 35% more power. It's the all-in-one universal charging solution - battery charger, battery maintainer, trickle charger, float charger, plus battery desulfator. Do more with Genius - Designed for 6-volt and 12-volt sealed lead-acid automotive, marine, RV, powersport, and deep-cycle batteries, including flooded, gel, AGM, SLA, VRLA, and maintenance-free, plus lithium-ion batteries (lifepo4). Enjoy precision charging - An integrated digital thermal sensor detects the outside ambient temperature and alters the charge to eliminate over-charging in hot climates and under-charging in cold climates. Charge dead batteries - An intelligent start-voltage sensor detects and charges batteries as low as 1-volt or manually turn on Force Mode to begin fast charging dead batteries down to zero volts. Restore your battery - An advanced battery repair mode uses slow pulse reconditioner technology to automatically detect battery sulfation and acid stratification to restore lost battery performance for stronger engine starts and extended battery life. Beyond maintenance - It's not just an auto battery trickle charger, it's an advanced car battery charger maintainer. A fully-automatic, worry-free portable automotive battery charger for everyday use - 24/7 - with zero overcharge. Compatible with all types of gas and diesel vehicles - Charge and maintain cars, automobiles, motorcycles, dirt bikes, scooters, lawn mowers, ATVs, UTVs, tractors, trucks, trailers, SUVs, RVs, campers, boats, PWCs, jet skis, wave runners, snowmobiles, golf carts, generators, classic cars, and more.