The Go Power! Battery Chargers are compact, powerful battery, chargers that offer fast, accurate battery charging at a reasonable, cost, Using state-of-the-art, switch mode technology, Go Power!, Battery Chargers are reliable, compact and lightweight, All models feature switchable output modes, one for float charging, and one for rapid charging, and a four-stage charger, with an, automatic ""equalization"" stage to periodically boost charge, batteries, This is especially useful for batteries which often sit idle, for long periods, SKU: APS825