100% waterproof 12v-800mA “Super Smart” technology Spark proof, short circuit protection, reverse polarity protected Designed for use on all AGM sealed maintenance free, lead calcium, and flooded batteries 3-year manufacturers warranty Product DescriptionBATTERY TENDERS BATTERY TENDER JR WATERPROOF 022-0150-DL-WH BATTERY TENDERS BATTERY TENDER JR WATERPROOF 022-0150-DL-WH