IPhone 4s battery problem! IOS 6.1.2?

My phone today had 70% and like 10 minutes later i checked my phone was completely dead. My phone was warm-hot too can anyone tell me why and how i can resolve this issue?

There has been talk about it reducing battery life by alot. Just look on the community forums on apple.reduce brightness, turn off bluetooth and notifications.

Restart it and fully charge it without touching while charging… And also turn off Wi-Fi, mobile data, gps,

it will help

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