“This is from Gizmodo’s article, but I think a lot of people I know have iOS 7 now and would appreciate these tips”
Turn off parallax:
Have you noticed that since updating your background wallpaper seems to move behind your apps if you tilt your phone? that’s parallax. It’s nifty, but do you like it enough to warrant the extra juice it uses? Turn it off via Settings > General > Accessibility > Reduce Motion.
Turn off unneeded items (like bluetooth) quickly via Control Centre:
One of the big improvements from iOS 6 > 7 is the inclusion of the Control Centre (accessed by swiping up from the bottom of the screen). Here you can quickly turn Airplane mode, Wifi, Bluetooth, Do Not Disturb mode on and off as well as some other good things like screen brightness. Sure, Android users have had this forever… but now Apple has done it… better late then never. Also turn off AirDrop!
Turn off Location Services for apps that don’t need it
Sure some apps need location services (GPS) to function. Google Maps, Foursquare and Urbanspoon would be pretty useless without them – but does Facebook really need to fire up your GPS every time you use it? Change it via: Settings > Privacy > Location Services.
Turn off Background App updates
It’s a cool feature, but it also drains the battery. I personally like to tell my phone when to update apps so I can see when features are added. It might also access your cellular data; I prefer to let Wifi handle app updates (not certain if you can control that or not). Change via: Settings > iTunes & App Store (scroll down) > Updates under ‘Automatic Downloads’.
Turn off Background App Refresh
This is a personal preference call, how much multitasking do you want your phone to do? Personally there are only a few apps that I would like to be constantly up to date – but for the most part I would rather have them working only when I am using them. Change via: Settings > General > Background App Refresh.
Trim down your Push Notification list
Do you really really need to have so many push notifications? pick the ones you actually need and turn off the ones you don’t. Each item is something that has to be checked by your phone, which equals battery. Change via Settings > Notification Centre
Turn your email from Push to Fetch
Push notifications and tasks kill battery by forcing your phone to work. Fetch on the other hand switches it to checking on specific intervals. This might also help your sanity. Change via Settings > Mail, Contacts and Calender > Fetch New Data
Read the original article here