1 Prevent Background App Refresh
2 Buy an Extended Life Battery
3 Don't Automatically Update Apps
4 Don't Take App Suggestions
5 Use Content Blockers in Safari (iOS 9)
6 Turn on Auto-Brightness
7 Reduce Screen Brightness
8 Stop Motion & Animations
9 Keep WiFi Off
10 Make Sure Personal Hotspot Is Off
11 Find the Battery Killers (iOS 9)
12 Turn Off Location Services
13 Turn Off Other Location Settings
14 Disable Dynamic Backgrounds
15 Turn Bluetooth Off
16 Turn Off LTE or Cellular Data
17 Turn Data Push Off
18 Fetch Email Less Often
19 Auto-Lock Sooner
20 Turn Off Fitness Tracking
21 Turn off Equalizer
22 Disable Cellular Calls Through Other Devices
23 Turn AirDrop Off Unless You're Using It
24 Don't Automatically Upload Photos to iCloud
25 Don't Send Diagnostic Data to Apple or Developers (iOS 9)
26 Disabled Unneeded Vibrations
27 Use Low-Power Mode (iOS 9)
28 One Common Mistake: Quitting Apps Doesn't Save Battery
29 Run Down Your Battery As Much As Possible
30 Do Less-Battery-Intensive Things