Meet the GENIUS2D, one of our most powerful, highest-performing, energy-efficient, and compact onboard universal battery chargers yet. The GENIUS2D is a 2-amp (28-watt) - 100-240VAC 50-60Hz - 12-volt heavy-duty battery charger, battery maintainer, trickle charger, float charger, and battery desulfator for up to 40 amp-hours. It's designed to charge and maintain all types of sealed lead-acid 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 mounted almost anywhere - under the hood, engine compartments, garage - to charge and maintain any battery. 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. Features: Meet the GENIUS2D - A direct-mount onboard battery charger for an under-the-hood battery charging. 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 12-volt sealed lead-acid automotive, marine, RV, and deep-cycle batteries, including flooded, gel, AGM, SLA, VRLA and maintenance-free batteries. Direct Mount - Securely mounts nearby the battery with its rugged snap-fit mounting bracket and effortlessly installs into most materials with truss-head self-tapping screws. Enjoy precision charging - An integrated digital thermal sensor detects the ambient temperature and alters the charge to eliminate over-charging in hot climates and under-charging in cold climates. Charge dead batteries - Charge batteries as low as 1-volt, including flooded, gel, and AGM, as well as automotive, marine, and deep-cycle batteries. Beyond maintenance - It's not just a battery trickle charger, it's an advanced battery charger maintainer. A fully-automatic, worry-free smart battery charger for everyday use - 24/7 - with zero overcharge. Restore your battery - An advanced battery repair mode uses slow pulse reconditioner technology to detect battery sulfation and acid stratification to restore lost battery performance for stronger engine starts and extended battery life. Compatible with all types of gas and diesel vehicles - Add a permanent onboard battery charger to any vehicle to make battery maintenance simple and easy. Plus, combine with any of the GCP Series AC Port Plugs for remote charging access. Package Includes: 1 x Battery Charger/Maintainer Listing and template services provided by inkFrog