Many users who have upgraded to5 have noticed decreased battery life, the problem seems to effect and users the worst, but some users have noticed battery reductions as well. Even without heavy usage and when a device is in standby mode, the battery seem to drain much quicker than usual, suggesting something running in the background is causing the battery to drain all the time. Nobody has found the exact problem yet, but we’ve compiled a variety of tips and suggestions that help the battery life issue quite a bit with any device. Try them out and let us know how it goes for you.
Reset Network Settings
- Tap on “Settings” > Reset > Reset Network Settings
- Settings > General > Bluetooth > “OFF”
Disable Notifications & Apps in Notification Center
- Settings > Notifications > Turn OFF for anything you don’t need
Disable Location Services
- Settings > Location Services > Disable selectively for services you don’t use
Disable Time Zone Adjustment
- Tap on “Settings” > “Location Services” > ‘System Services’ > Setting Time Zone to OFF
- Settings > General > Restrictions > Enable Restrictions > Ping > OFF
Disable Diagnostic & Usage Reports
- Tap on “Settings” > General > About > Diagnostic & Usage > Don’t Send
Delete eMail Accounts, Reset Network Settings, Re-add eMail Accounts
- Delete your email accounts by going to “Settings” > Mail, Contacts, Calendars > Account Name > Delete Account
- Now Reset Network Settings in “Settings > Reset > Reset Network Settings
- Reboot the iOS device
- Re-add email accounts back in “Settings” > Mail, Contacts, Calendars > Add Account
Nuclear Option: Backup & Restore
The nuclear approach is a full restore of your iPhone or , as there are some indications that completely restoring the iOS device can recover battery life quite a bit. If you go this route, be sure to backup your device first, and you can either download iOS 5 IPSW to restore from manually or try the standard iTunes Restore method. Either way you’ll need to then manually restore from the backup you made beforehand after has been re-installed.
I had the most success with disabling bluetooth and resetting network settings and then selectively disabling notifications for things I don’t need, but your mileage may vary. Interestingly enough, the battery issues weren’t present in iOS 5 betas, suggesting that a minor software change caused the battery life to worsen in the final release of iOS 5. Until an official update and fix comes from( ?), try these fixes to stop the battery draining, and let us know what works and what doesn’t for you.