Iphone 4s Battery life WORSE with upgrade. Anyone else seeing same?

Let me try this too but I believe in Apple. This isn't mere Adroid phone to optimise the performance with small small settings. I believe the factory configuration should optimal. The next update would be my last bet otherwise I'd return this phone.

For me a big difference when in the Netherlands using T-Mobile or KPN as a provider.

With T-Mobile we're loosing 15-20% overnight with a fully charged battery. With KPN only 3%.

The question what is the network of T-Mobile doing? I'm glad we are not using T-Mobile anymore.

The same story here I need to try Vodafone in India. I seriously doubt airtel network. Even the quality of wifi network would affect your battery life

Hi, I have the same problem. My 4s is crazy, battery goes down 1%/minute, sometimes 10% in one shot. Safari, camera, SMS, iMessage, sample games everything kills my battery in my eyes. It can not to work from 9am to 3pm if i want to check internet (by edge, 1h), write some text and take 3 photos. Tomorrow I try iOS 7.1beta, the same story. It is my 5th iphone and it is first time, when I have, a problem and I think about W8 phone. I can't to find any answer, I just see a lot of people with this problem.