Battery Tender® 12V, 1.25 Amp Battery Charger for Motorcycles. Maintains Car Batteries - 021-0128

The Battery Tender® Plus is a 1.25 amp battery charger designed to fully charge a battery and maintain it at proper storage voltage without the damaging effects caused by "trickle chargers". Included is a quick connect ring terminal harness for hard to reach areas and alligator clips for an alternate connection.
Temperature-compensated to ensure optimum charge voltage according to ambient temperature.
Automatically switches from full charge to float charging mode.
Reverse Polarity Protection to ensure user safety. Red & Green Lights Alternately Flash in this condition.
Complete 4-step charging program (Initialization, Bulk Charge, Absorption Mode, Float Mode).
Perfect for all lead-acid, flooded or sealed maintenance-free batteries (AGM and gel cell).
Safety timer: 72 hrs.
Certification: UL/CSA. FCC.