The Black & Decker BM3B battery charger/maintainer features 6 volt and 12 volt charging selectivity. High Quality and Water Resistant! Use for battery maintenance, charging RVs, specialty vehicles, antique and classic cars, marine deep cycle batteries, motorcycles, trucks, lawn mowers, ATVs, snowmobiles, personal watercraft and more. Maintains battery charge in stored vehicles and battery applications. Includes three connector sets: DC accessory plug, battery clips, and battery ring terminals. Fully automatic, provides a charge when needed, stops charging when battery is fully-charged or topped-off. Built-in circuit protection guards against overcharging, reverse polarity or short circuit. 

This is GREAT especially if you have a car that sits or is garaged for an extended period of time. Will work on ALL makes and models, including cars, trucks and motorcycles

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