Universal Battery charger also has a built in USB port to have the ability to charge any of your external USB capable devices.  Can be used in the home or on the go in your vehicle. Charges Li-Ion, Ni-Cd, Ni-Mh, AA & AAA rechargeable batteries as well as various brands of batteries.  This device has an automatic voltage/polarity selection microporcessor core which identifies the battery type and the polarity making it easy for you to use.  Compatible with old & new Li-Ion batteries and includes a handy pen stylus to quickly help insert those batteries.  Microprocessor for fast charging with an automatic charge current control and a charging phase with over charge protection.  Also has 3 independent charging channels to support any battery charging combination with a faulty battery detection and a 10 hour safety timer.  LED indicators for charging and to show that the power is on.  Includes the car adapter.