Features
* protective case with built-in rechargeable 1500 mAh lithium polymer battery.
* smart LED charge status indicator.
* pass-through USB charging and sync with iTunes.
* extended smart battery and case protection.
* intelligent charging technology instructs the iPhone to always drain the battery pack.
Benefits
* more talk time 2x the power
* durable protects your iPhone
* environmentally friendly rechargeable
* economical replaces thousands of AA batteries
Specifications
* battery cell: lithium polymer
* power capacity: 1500 mAh@5V
* rated input: DC5V
* rated output: DC5V, max 500 mA
* dimensions: 4.9(L) x 2.6 (W) x 0.9 (H)
* weight: 2.98 oz