Typical recharge time: 4-8 hours. Properly charge and maintain all H-D® 12-volt batteries. The advanced solid-state circuitry constantly monitors the battery's charge, and manages the voltage without overcharging. The charger automatically switches to float mode and adjusts the charge rate up or down to keep the battery properly maintained for extended periods of time. The weather resistant construction provides peace of mind in case of exposure to moisture during charging. Maximum charge rate of 1.25 Amperes. Kit includes a quick-disconnect 7.5 Amp fused Battery Charging Harness with ring terminals that can attach to the battery screw terminals for easy connection, and a 7.5 Amp fused alligator clip charging harness. 2-year manufacturer's warranty. For 12-volt batteries. See matrix for specific voltage allowance.