Juice pack battery case for iphone4 * for iphone 4G * Battery type: Li-ion * .Rated input: 5V/1000mA * Size:128*63*18mm * Capacity: 1650mAH * Color:white/black ♥Features: * Ideal for long flights, outdoor activities, anytime and anywhere devices. * Built-in Short Circuit, Over-Charge, and Temperature Protection. * With 4 step LED display to show Charge Status and battery life . * With POWER ON/LIGHT function. * Rechargeable OVER 500 times. ♥Standard Accessories: *Hand Strap and User Manual ♥Optional Accessories: *Mobile tips,Bag,Car Charger,AC Adaptor ♥Whether you’re at home, on the go,on the air, or any remote location, you can trust Gallop portable and backup power solutions to keep your important electronic devices powered up. Put Gallop power in the palm of your hand to help keep you safe, productive and entertained, anytime and everywhere. REMARKS: 1.Easy to use: with light weight and pretty outlooks,it can be carried easily and charge conveniently by putting into the original power socket of all digital devices directly. 2.Long-wearing:If the abttery is full-charged,it can provide all digital devices at least one cycle power. 3.Charging Method: This Portable mobile charger can be charged via USB port of woking PC and laptop or via AC adapter. 4.Charging Dispaly:4LED lights on left upside flash when charging the Iphone&Ipod series devices,no flash when the power is lower than2.8V.