Iphone6s Battery usage and standby time
I got a replacement phone(iPhone6s) few days ago from apple and the battery drains much faster compared to my previous iPhone6s. So i went to check the battery usage and standby , the usuage and standby has the same time (1 to 2 mins different sometimes). Is this a problem? All my friends that have the same phone as me dosen't have this problem.Their standby are usually much longer and their phones have better battery lives.
iPhone 6s, iOS 9.2.1