High Efficiency: Battery Tender JR High Efficiency 800mA Battery Charger Versatile Use: Suitable for all lead-acid, flooded, or sealed maintenance-free batteries (AGM and gel cell) 4-Step Charging: Features a complete 4-step charging program (Initialization, Bulk Charge, Absorption Mode, Float Mode) Automatic Maintenance: Automatically switches to float or maintenance voltage after fully charging the battery Safety Features: Spark proof and reverse-polarity protected with solid state two color LED indicator Included Accessories: Comes with a 12-foot extension cord, alligator clips, and ring terminals for easy attachment Agency Approvals: Certified by UL, CSA, BC, and FCC