Battery Case for iPhone 4 2300mAh, fashionable design and portable, supply power to your iphone conveniently.

For iPhone 4 Battery Case , fashionable and convenient for take out.

Specification:

Product name:power pack

Battery type:lithium-ion battery

Product Compability: iphone 4G

Standy time: up to 390 hours

Talk time: up to 6.5 hours on 4.5 hours

Internet use: up to 6.5 hours on 4G

                   up to 8 hours on Wi-Fi

Audeo play: up to 31 hous

Video play: up to 9 hours

Features: The sleek power pack snaps inconspicuously onto the back of your iphone, adding only a few millimeters of thickness, but more than doubling the battery runtime.

It prioritizes consuption, pulling power from the power pack first, maximizing the iphoen's internal battery

External For iPhone 4 Battery Case 2300mAh