Nature Power 50082 85-Watt Monocrystalline Solar Powered 12-Volt Battery Charger High efficiency monocrystalline solar panel produces up to 80-watt or 4.92-amp per hour of sunlight Ideal for charging 12-volt batteries to provide power in remote locations or in emergencies, connect multiple panels for faster charging Corrosion resistant aluminum frame and sealed against moisture this solar panel is rated for outdoor use Plug and play connections for fast and easy set up Optional tilt mount system available