Warning:Don't touch the Non-insulated part when charging!TO PREVENT BATTERY DAMAGE:Do not use on GEL batteries.Check battery voltage with a multimeter before use.The Battery must be12 Volts can be full charged.Color:BlackInput:120VAC 60Hz,14WRated Output:12 VDCMaximum Output:13.2 VDCBattery Capacity: 5-125 AhCable Length:53’’Advantage:commonly used fast chargers provide a powerful, fast charging method, but usually boil liquids and corrosive electrodes.Our product float charger protects the battery from self-discharge while maintaining and extending the life of a rechargeable 12 volt lead-acid battery. For batteries rated at 5-125 Ah (ampere-hours), it keeps the battery charged and has a maximum charge of 13.2 v DC. It will be your best companion for your car.