Batery drain
Battery is draining too fast with over heating
iPhone 5s, iOS 8.1.3
Hello Naser91sh,
It seems your battery isn't performing to you expectations, and you have concerns about the temperature of your device. I've linked to some articles which may help you find a solution:
Apple - Batteries - Maximizing Performance
Keeping iPhone, iPad, and iPod touch within acceptable operating temperatures - Apple Support
Learn about the operating temperatures and temperature management of iPhone, iPad, and iPod touch (4th generation and later).
Thank you for contributing to Apple Support Communities.
Cheers,
Bobby_D