STANLEY BC8S 8-Amp FATMAX Battery Charger/Maintainer

Automatically charges & keeps battery at optimal charge; Sealed & conformal coated to protect against moisture, corrosion, dust & oil; 3-way charging--battery clamps, 12V DC connector & battery ring terminal; Charging-mode selector button; Reverse-polarity indicator; Automatically compensates for lower voltage caused by extension cords; Includes power cord, O-rings, 12V DC cord & clamps;