For iPhone 4G Battery Replacement Cell Lithium Ion Li-ion 3.7V 1430mAh + Tool + Printed Guide Book + Free WF Pen
Perfect fit and tested so when you plug it in the battery should just work right away, you will get the same power and phone will be charged as normal and will work as good as when you first get your device. Complete replacement kit with instruction installation guide step by step with picture printed with color in a booklet. Compatible only with iPhone 4G any capactity and any carriers ( will not compatible with iPhone 4S )WF is a registered trademark and exclusively can be used only by WirelessFinest Co. who carefully select, test the offered product, provide warranty and support after sales.