Extreme Max 1229.4012 Battery Buddy Plus Onboard Water Resistant 12V (1.5 Amp) Battery Charger/Maintainer Water resistant onboard battery charger and maintainer automatically powers on and off as needed Will not overcharge or damage batteries during extended use Reverse polarity and short circuit connection protected 12 Volts/1.5 Amps 1-year warranty Water resistant onboard battery charger and maintainer automatically powers on and off as needed Reverse polarity and short circuit connection protected 12 Volts/1.5 Amps 1-year warranty