With every new iOS release comes new complaints about battery drain, but it is hard to know if any of these accusations are actually true. However, iOS 7 and 7.1 do include a lot of unnecessary features that do drain your battery. Here's a few iOS 7.1 features you can disable to get more life out of your iPad or iPhone.
Turn off Background App Refresh, Auto Downloads and iOS 7 Parallax Effect
iOS 7 introduced a lot of new and interesting features, but a lot of these are a huge drain on your battery and not important to some users. You can start saving battery power by disabling Background App Refresh. This feature allows some apps to refresh their content while running in the background. This does require battery power and can be one of the reasons why your device seems always seems to be low.
You can disable this feature by navigating to Settings > General > Background App Refresh and then tap the slider so it turns white or OFF. You can also selectively turn off certain apps from this panel while allowing other to continue searching for updates. This will also reduce the strain on your battery since your device will be searching for less updates.