The MiLi PowerSpring 4 Extended Battery from MiLi Products Direct, released on August 25, 2010 is the first foldable, external battery specifically designed for the iPhone 4 that will extend its life up to two times and is Apple approved.
With an output of 5V-0.5A and a capacity of 1600mAh, it extends playtime on videos up to 10.6 hours, on audios up to 36 hours, on Internet surfing up to 6 hours on 3G up to 10.6 with Wi-Fi, and on standby up to 360 hours.
The MiLi Power Spring 4 Extended Battery is the thinnest external battery yet for iPhone 4. It has undergone rigorous testing to ensure that it is up to Apple industry standards. The Power Spring 4 can also protect the iPhone 4 from damage and the “Death Grip” issues are solved due to the sleek fit.
MiLi’s smart chip prioritizes power consumption to keep the iPhone working longer between charges by using the iPhone’s internal battery only when necessary.
The Power Spring 4 Extended Battery is available for order now at http://www.MiliProductsDirect.com. Suggested retail price $89.95, special new release pricing and free shipping available through 9/30/10.
MiLi is an Apple-authorized brand.