i have a serious problem with the battery lifetime ..

Dear All,

Good morning .. thank you for your help in advance.

I have Iphone 5 16 GB .. operating version 10.2.1..

My battery lifetime is too short .. it lasts for a couple of hours or less if i'm using Internet application "Youtube - Whats app - Facebook". i have to plug the phone into a power bank all the day which is not reasonable at all.

Thank you for your assistance.

Best regards