replacement for iPhone 3GS Battery Pack 1700mAh-3700MAh Li-ion built in cell battery Lithium-ion battery

portable Battery Pack for iPhone 3GS/4g

The battery pack offers a reliable energy source with a large capacity. The robust circuit ensures high safety. This battery pack is a great choice for your iPhone.

Suitable for iPhone 3G /3gs/4g

Capacity: 1,800mAh.

 Weight: 90g.

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Specifications:

*Weight: 66.5g *Real Capacity: 1700mAh-3700MAh Li-ion built in cell battery *Cell type:Li  battery Lithium-ion *Dimension:113×66×21(mm) *Output voltage:5V *Output current:1A max *Cycle life: 500times *Automatic test functions built into the jacket to ensure the Li-ion battery charges to full capacity (with LED indicator) *Data transmission capable, this means the iPhone can connect with your computer while in the jacket!

portable Battery Pack for iPhone 3GS 1700mAh-3700MAh