STANLEY GBCPRO Golf Cart & Vehicle Battery Charger 2 amp battery charger and maintainer is compatible with most AGM, GEL, or WET automotive or marine 6, 12, 24, 36, and 48 volt batteries Offers 4 ways to connect: round cart connector, rectangular cart connector, standard battery clamps (for 6,12,or 24 volt batteries), or universal O-rings Charging automatically stops when battery is fully charged or topped off and switches to float mode monitoring to maintain charge Equipped with a digital LCD screen that displays battery voltage, show voltage, and float charge; Reverse polarity protection that eliminates sparks and is ETL certified for performance and safety Impact resistant with an injection molded polymer housing that is coated for moisture protection