Staff Techdrunk 
Good things appear in Pair! The new iPhoneck Backup Battery for the iPhone 3G features a unique design, an integrated case and rechargeable battery in one package without any hassle of cords. You just have to hook up the back up battery to the built-in one and it will power up to 60%.of the battery life. It offers you the convenience of charging it on the move. The New iPhone Battery back up is priced at the rate of $29.99 and it is also available online at the official iPhoneck site
The case has been designed exclusively for the iPhone handset, there is no compromise on its looks when you use the back up. It provides a perfect fit by just adding a bit of a neck to the phone. and when you clip it on, it just looks like a King size iPhone. The handset looks like it has just extended its size only.
The iPhone Back up battery also features an intelligent and convenient Power Management System with inbuilt technology to always drain out the backup battery first. Simply detach the backup battery when you are done with it and you will have a fully charged handset.
The backup battery has a rechargeable Lithium-Ion cell to provide protection from over charging and malfunctioning even under the most extreme conditions,
while the LED Battery Indicator displays the status of both the back up and internal battery in three different modes and colors of blue, soft light blue and red
