Features: · 100% Brand New and High Quality Universal Battery Charger with USB Output · Intelligent dedicated battery charger with USB output. · When the battery is fully charged, automatically stop charging. · Safety cut out circuit, built-in protection circuit prevents overcharging. · Constant current, constant voltage charging, automatic identification. · The high-quality LCD screen indicates connection and full charge. · Also convenient to interchange your spare batteries · Use the data line which corresponds to mobile phone can be charged directly to the phone. · Intelligent Chip: The smart chip protects from short circuit and overload by regulating voltage an ensuring a high efficiency charge. Technical Specifications: · Input: AC 100-240V 50/60Hz 150mA · Output: DC 4.2V 400mA +/-50mA,USB Port Output: DC5.2V, 800mA(USB) · Connecter: US Plug · Short circuit and overload protection. · Color: Black · Note: This Charger Just Fit For The Battery (32mm<=width<=55mm) Compatible with: · Just compatible with 3.7 Volts Batteries, not for 3.8V or 4.2V!!! Otherwise, the battery can not be filled · Universal Wall Travel Charger for Cell Phone PDA Camera Li-ion Battery with USB Port Black · Mobile phones · Digital cameras · Mp3 Mp4 players · Hand held gaming devices · PDAs ...and many more rechargeable lithium-ion batteries at 3.7 volts How does it work? 1. Place your battery under the clip with battery contacts facing pins. 2. Line up your battery's positive and negative contacts to the pins. A: Most batteries are labeled positive (+) and negative (-). B: If yours is not, start with the outside contacts. 3. Slide the battery until the both pins are touching the battery contacts. A: The LCD will light up if it has a good connection. B: If not, adjust the pins and try again. 4. The battery is fully charged when the LCD shows four solid bars. Package included: · 1 x Universal Battery Charger with USB Output · 1 x Plug Adapter