How do I stop Battery drain on iPhone 6 that started when I when updated to iOS 9.2.1

vera165 wrote:

HHow do I stop my iPhone 6 battery from daring? It started when I updated to 9.2.1.

You can start by looking at settings - battery - and see what app is draining your battery.

I have 5 Apple devices on 9.2.1 and have no battery issues, so it isn't due to 9.2.1

http://www.apple.com/batteries/maximizing-performance/