FastMac Wants to Prolong Your iPhone's Battery Power

f you use your iPhone all day long to surf the Web, watch videos, and play music it probably runs out of juice quite often. To prolong your battery power, you either need to recharge it a couple of times a day or hook it up to a portable charging unit like FastMac's iV iPhone Battery Pack. FastMac was showing off the rubberized battery pack at Macworld this week, which Gizmodo says will add four times as much battery time to the iPhone.

The battery pack clips on to the back of your iPhone, and stays put to charge both devices at the same time when docked. The back of the iV external battery case features a built-in LED light that doubles as a flash and a flashlight, a belt clip that rotates to work as an iPhone stand, and a USB port that can charge other devices. It's probably not something every iPhone owner needs, but if you happen to be an iPhone superuser, $80 might be a small price to pay for the extra battery power.