How To Change The Battery In An Iphone 4s. If you decide to replace the iPhone battery on your own you can purchase a replacement kit online that include the battery and all necessary tools and instruction. Just plug in the cable and then connect it to a USB port on your computer or the power brick for your iPhone.
Line up the grounding clip you removed previously over the screw hole before snapping down the battery. The time you cost on opening iPhone 4 for battery changing depends on your manual skills. A charged lithium-ion battery can catch fire andor explode if accidentally punctured.
You can go to the above link and find a guide for changing the battery or you can go through Apple and have them replace the battery.
Line up the grounding clip you removed previously over the screw hole before snapping down the battery. A bad battery can also cause your iPhone 4S not to boot at all. Power off your iPhone before beginning disassembly. Turn off the iPhone and confirm it is off.
