IPhone 4S will either show 100% battery or dead battery right before shutting off, nothing in between. Has iOS 7 now after restore and is continuing to do the same thing as when it has iOS 6. Frustrating, like not having a fuel gauge on your car!!l

iPhone 4S will either show 100% battery or dead battery right before shutting off, nothing in between. Has iOS 7 now after restore and is continuing to do the same thing as when it has iOS 6. Frustrating, like not having a fuel gauge on your car!!l. Purchased around March of this year so not very old, never wet, damaged, etc.

Read:  http://www.forbes.com/sites/larrymagid/2013/09/27/how-to-preserve-battery-life-i n-ios-7/?partner=yahootix

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