2000 mAh Mophie juice pack plus external rechargeable battery pack for iPhone 4
2000mAh Doubles Battery Life Mophie juice backup battery for iPhone4
Portable battery pack aluminium case 2000 mAh 5V backup battery for iPhone4
Mophie juice pack air batteries for sale! Rechargeable lithium batteries 2000 mAh 5V backup battery for iPhone4

Description:
More than Doubles Battery Life!
2000 mAh capacity, advanced battery technology delivers an incredible amount of "juice" in a small form factor, more than doubling battery life.
Standby/Charging Switch
Features a simple toggle switch allows for standby and charging mode so you only have to use the juice pack plus battery when you need it!
Charge and Sync
Charge and sync your iPhone to iTunes without removing it from the juice pack plus by using the included USB cable.
Protective Rubberized Band
The juice pack plus provides a comfortable ergonomic design with the complete protection of a dual-injected hard shell case with protective shock-proof rubberized band.
Status Indicator
The 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.
Battery Usage time:
Up to 8 add'l hours talk time on 3G; 16 hours 2G
Up to 7 add'l hours internet on 3G; 11 hours WiFi
Up to 44 add'l hrs audio playback
Up to 11 add'l hrs video playback