backup battery for iphone 4

backup battery for iphone 4 1.the specifiations of battery for iphone 4 Product Dimensions:5.07 in x 2.51 in x 0.68 in; 2.5 oz Battery Capacity:1500 mAhEstimated Shipping Weight:1 lbsItem model number:1145_JPAXP4, 1146_JPAXP4, 1147_JPAXP4, 1148_JPAXP4Shipping:This product ships world wideProduct Category:Cell Phone External BatteryProduct Compatibility:Apple iPhone 4,iPhone not includedPackage Content Included:juice pack air, USB-micro cable, User’s ManualPatent:Pat. D616360, Pat. D616361Standby Time:Up to 270 hoursTalk Time:Up to 6 hours on 3G | Up to 12 hours on 2GInternet Use:Up to 5 hours on 3G | Up to 9 hours on Wi-FiAudio Playback:Up to 36 hoursVideo Playback:Up to 9 hours 2.the description of battery for iphone 4 Innovative Design The juice pack air is a rechargeable Smart Battery concealed inside of a low-profile, light-weight, soft-touch, 2-tone metallic case. Toggle between Charging and Standby with the flick of a switch. External Battery The juice pack air is designed to virtually double the time you have to Rock, Talk, Surf and Send with yourphone Charge and SyncCharge and sync your iPhone to iTunes without removing it from the juice pack air by using the included USB cable. Fully Protected The juice pack air not only adds battery life, it is a protective form-fitting case with an ultra-thin, light-weight, low-profile design. Status Indicator The all-new integrated LED status indicator on the bottom tells you exactly how much juice is left at the push of a button. It also indicates the charging status so you know before you go. Acoustic Sound Enhancement The case design acts as a virtual speaker box, redirecting sound from the bottom of the iPhone 4 to the front, resulting in a richer, fuller sound quality.3.the features of battery for iphone 4juice pack Legacy With more than one million juice pack units sold to-date, mophie cases have been made for every iPhone and iPod touch form factor since the devices debut and was the first-ever “Works with iPhone” battery case. The juice pack air for thephone provides the very best of seven generations of product development and design.Battery Extender and Case in One The juice pack air for iPhone 4 combines rechargeable external battery power concealed inside of a protective form-fitting case. It offers the full protection of a hard-shell case with an ultra-thin, light-weight, low-profile design. Twice the Power The juice pack air for iPhone 4 virtually doubles the power available to rock, talk, surf and send. A full charged case gives users: -Up to an additional 6 hours on 3G, up to 12 hours on 2G, of Talk Time -Up to an additional 36 hours of Audio Playback -Up to an additional 9 hours Video Playback Advanced Battery Technology Highly condensed lithium polymer battery delivers an incredible amount of juice in a small form factor and features built in overcharge, short circuit and temperature protection. Efficient Electronics Embedded electronics results in no signal interference with the phone. Acoustic Sound Enhancement The case design acts as a virtual speaker box, redirecting sound from the bottom of the phone to the front, resulting in a richer, fuller sound quality.4 Light LED Battery Status Indicator An integrated LED status indicator tells you exactly how much “juice” is left and also displays how much time remains during the charging process.Quick Speed 500 milliamps fast charge technology, with an advanced battery for added safety, as well as 1500 mAh capacity. Soft-Touch Finish Sleek design includes a new, soft-touch, rubberized finish and silver band that mirrors the aesthetic of the iPhone itself.Pass-through USB Included USB cable enables you to simultaneously charge and sync your Phone to iTunes without having to remove it from the juice pack air.illustration: