BLACK+DECKER BC2WBD Waterproof Battery Charger/Maintainer (2 Amps)

• 0A-2A fully automatic battery charger & maintainer;• Waterproof--sealed from dust, oil & moisture to prevent corrosion ;• High-frequency technology--user simply hooks it up, plugs it in & turns it on;• Reverse-polarity protection;• AC low-voltage compensation ensures maximum performance when used with extension cords;• Connects to battery via battery clips, 12V DC accessory plug or battery ring terminal;