Item Name: Usb-port Universal Lcd Screen Indicator Phone Battery Charger For Cell Phones. USB Port Output: DC5.2V, 1250mA(USB)Output: DC 4.2V 400mA +/-50mA,Universal Battery Charger with USB OutputConstant current,constant voltage charging,automatic identificationShort circuit and overload protectionConnecter: US PlugWhen the battery is fully charged,automatically stop charging100% Generic New and Good QualitySafety cut out circuit,Built-in protection circuit prevents overchargingAlso convenient to interchange your spare batteriesInput: AC 100-240V 50/60Hz 150mAThe high-quality LCD screen indicates connection and full chargeIntelligent 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