Item Name: Phone Battery Charger Universal Lcd Screen Indicator Usb-port For Cell Phones. Description Connecter: US PlugThe high-quality LCD screen indicates connection and full chargeConstant current,constant voltage charging,automatic identificationUniversal Battery Charger with USB OutputOutput: DC 4.2V 400mA +/-50mA,USB Port Output: DC5.2V, 1250mA (USB)When the battery is fully charged,automatically stop chargingAlso convenient to interchange your spare batteriesSafety cut out circuit,Built-in protection circuit prevents overcharging100% Generic New and Good QualityInput: AC 100-240V 50/60Hz 150mAShort circuit and overload protectionIntelligent dedicated battery charger with USB outputCompatible for:Acer, Asus, Audiovox, BlackBerry, Casio, CECT, Dell, Dopod, Garmin, Handspring, Hitachi, HP, Compaq, HTC, i-mate, Kyocera, LG, MiTAC, Motorola, NEC, Nokia, O2 Xda, Palm, Panasonic, Pantech, Samsung, Sanyo, Sharp, Siemens, Sony Ericsson, T-Mobile Sidekick, Toshiba, UTStarcom Mp3 Mp4 players Digital cameras Mobile phones...and many more rechargeable lithium-ion batteries under 4.7 volts How does it work?Place your battery under the YIBOYUAN clip with battery contacts facing pins.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.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.The battery is fully charged when the LCD shows four solid bars.Note: Accessory ONLY, Battery not includeIn