Energizer Power iPhone 3GS Sleeve Lithium Polymer 5v Battery and Protector - Matte Finish

AP1000The AP1000 iPhone 3G(S) case offers protection and power at the same time.Super compact and lightweight, it shields the phone while extending your talk time.

XPAL Power integrates a minimum 12 safety logics into every cell for maximum protection of the battery, device and user. In addition, XPAL utilizes a mathematical circuit control unit with built-in proprietary software to control and regulate temperature, voltage and current.

XPAL Power exclusively uses lithium polymer battery cell technology. Most importantly, lithium polymer is more stable than lithium ion and is non-flammable. In addition it is form-fitting and lighter, whereby it can take on almost any shape or size.