Easy to charge your battery without the phone， this Battery Charger for LG Optimus Blackberry DX-1 F-S1 F-M1 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            New Battery Charger for Blackberry<br>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>CE and CCC certification<br>                                                            Specifications            Input    AC 100-240V ~ 50 / 60Hz 0.015A    <br>Output    DC 4.2V 250mA    <br>Output    USB 5.2Vd.c. 650mA    <br>Dimensions    3.35 x 1.85 x 1.02in (L x W x H)    <br>Weight    1.94 oz    <br>Color    Black    <br>Compatibility    Storm9500 Thunder9500 Curve8900 8920 9300 Javelin8900 Storm9530(Thunder) Storm9530(verizon) Storm2 9550 Storm9350 Tour 9630 Bold 9650 9520    <br>                                                            Package Includes            1 x Battery Charger for LG Optimus Blackberry DX-1 F-S1 F-M1<br>