fully automatic battery trickle charger maintainer solves ALL your troubles! 6V/12V Selectable Output-This device is 4 stages smart battery charger by microprocessor controlled with switch mode for 6V and 12V is selectable output. It is ideal for charging your CAR, MOTORCYCLE AND RIDE-ON TOY batteries, and great for agm gel vrla sla wet cell and all Lead Acid Batteries. 2 DC Connector-Two kinds of battery clamps, including battery clamps, battery rings for a more secure connection to battery terminals, can choose battery clamps which suit your equipment. Easy charging-The battery clamps make it exceptionally easy to charge your car's battery overnight. Automatic charging/ maintaining-The device is fully automatic to identify the level of charge on any type of battery and maintain a level of maximum charge and it's high frequency charging technology. Long lasting-The charger is built to last, with a fully sealed outer case, protecting it from dust, oil, and moisture, to prevent corrosion or other damaging effects of weather exposure. 6V and 12V Switchable by one button: Visible Charging Status: 2 LED indicator for battery charging 50%, 100%. An independent failure indicator. Intelligent Charging Automatic to identify the level of charging on any type of battery and maintain a level of maximum charge and it's high frequency charging technology. User Friendly: All cables are 100% tested, any open miswiring and shot are not permitted. Warm Tips: It also can be used with a larger capacity battery, the charging time will take a little longer, it won’t do damage to your battery. Package content 1 * battery charger 1 * DC Output cable with Clip connectors 1 * DC Output cable with ring connectors 1 * User's manual