It has happened to many iPhone users. Suddenly your iPhone is draining very quickly, even without using the iPhone at all.
This has happened to my iPhone now for two times. On many blogs and forums people are complaining about it and many tips are given but not a real good answer to the sudden quick drain of your battery. Below are these tips to save on battery power but won’t fix the sudden extreme drainage of your battery.
We have changed the title to include Android and Windows Phone devices now as well. We experienced the same battery drain on other mobile platforms. It seems that the exchange sync funtion (possibly calendar) hangs on the devices. In which it means it constantly is asking for data transfer in which your battery drains very fast. The device will feel hot as well. The solution is simple but takes some time.
- You need to delete to exchange account on your device
- After is is finished deleting your synced information you turn off your device and restart it.
- Set up your exchange account as before, the device will sync all your information back to your device.
- Turn off 3G (saves battery and is almost a must in area’s where you have Edge coverage)
- Turn off Notifications
- Turn off Push for e-mail
- Turn off WiFi
- Turn off Bluetooth
- Set your Fetch schedule on all your other emails to manually
- Turn your Brightness down
Again these tips above will not fix your sudden battery drain on your iPhone. And really turning off all these options, kinda makes your iPhone a phone like any other. You really don’t have to do this.
I have discovered that the sudden extreme battery drain has to do with your Exchange Account that has been set up on your iPhone. For some odd reason it keeps check and checking for new info and it won’t stop. Before trying to do a restore on your iPhone I would first recommend deleting your Exchange Push Account on your iPhone and set it up again as a new account. This will save some time in the fix for the extreme fast battery drainage.
Follow the steps below to fix the extreme battery drainage on your iPhone.
- Go to your “Settings” on your iPhone.
- Select “Mail,Contact,Calendars“.
- Select your account that has been set up with an exchange server.
- Select “Account Info“.
- Copy down the information which you will need to set up this account again later on.
- Select the “Arrow back ” on the top of your screen with the name of your account.
- Scroll down to the bottom of the page and select “Delete Account“
- Let the iPhone do its work. It will remove all e-mails, contacts and calendar items from your iPhone associated with your account.
- When done Turn off your iPhone and Turn it back on.
- Once your iPhone is turned back on you can go back to Step 1,2
- Back in the “Mail,Contacts,Calendar” Settings you have to select “Add Account“
- Select the “Microsoft Exchange” and enter the credentials you copied down before.
- The server information is not visible in this field yet, it will appear after you set up your E-mail, Domain, Username and Password are entered and “Next” has been selected.
- Now your account has been set up again. It will take some time for the iPhone to synchronize everything back. Give it some 5-10 minutes.
Now your Exchange Push account has been set up again and your extreme battery drainage has been stopped. If you think that after these steps you still have this issue, I would recommend using the “Restore” function in iTunes while your iPhone is connected.