This compact 800 mA battery charger incorporates highly efficient surface mount technology electronic components. The interior is completely encapsulated, protected from shock, vibration and moisture by an electrically insulating, thermally conductive, flame retardant, synthetic epoxy resin compound. It’s tough, affordable and a strong, innovative battery charging solution. This charger is no larger than a computer mouse, yet packs 800 mA of pure constant current charging power. Couple with a brain (IC chip), the charger will constantly monitor, charge and then maintain your battery. Perfect for all outdoor types of motorcycle, ATV’s, watercraft, boats or anywhere water is a threat.