Easy to charge your battery without the phone， this Smart Cradle Charger with USB Output for Samsung Infuse 4G i997 is a necessary device on your office desk or at home. Such Battery charger is great partner for you as a backup battery charger! This mobile phone charger featuring quick charge with automatic constant current control prevents battery from overcharging， short circuit， and electronic shock， preserving your battery's life span.                                    Features                Easy to charge your battery without the phone<br>    Built-in protection circuit prevents overcharging and heats<br>    Charge from a USB port or power outlet<br>    Charge two batteries at the same time<br>    Input: AC 100 - 240V ~ 50 / 60Hz 0.15A<br>    Output: DC 4.2V 350mA&#177;50mA<br>    USB 5.2Vd.c 800mA<br>    Dimensions: 3.27 x 2.01 x 1.02 inch / 8.3 x 5.1 x 2.6 cm<br>    Weight: 55g / 1.94 oz<br>                                                                                                Package Includes                1 x Smart Cradle Charger with USB Output for Samsung Infuse 4G i997<br>