ekimminau wrote:
I have 4 pop email accounts configured on my 4S. 2 were set for "Push" and 2 were set to "Fetch". I have changed all 4 to be configured as "Manual". I do not have Exchange and my batter life has been terrible. I will update in 24 hours.
FYI, just turning off Push will probably work. Check this out:
After having my new iPhone continually discharge in about 7 hours after I first set it up, I did the following:
- AutoBrightness is OFF
- Push for Exchange is OFF; Exchange and Gmail set to FETCH/15
- WiFi is OFF
- Bluetooth is OFF
- Data Roaming is OFF
- iCloud is OFF
- Siri Raise to Speak is OFF
- Location Services are ON, but
- Find my iPhone is OFF
- Location Services/System Services -- all OFF except Cell Network Search and Compass Calibration
- I generally have 4 bars with Verizon Network wherever I go
With those changes, iPhone battery usage seemed pretty normal — it would last for well over 20-30 hours in standby with a few hours of usage before a full discharge. I went to the Genius Bar, they said that "Push uses a lot of battery."
HOWEVER...my coworker has the same setup, AND DOES NOT have these problems at all. So, to troubleshoot, I did the following:
- Turned on Push for Exchange at at 3:10 pm when Battery Percentage was 71%. Usage reading then was Standby is 16 Hours, 10 Minutes. Turned off the screen. No apps are running in the background, not even mail. Let's see what happens...
- 3:43 pm - now it is at 62% with 2 Hours, 13 Minutes usage and 16 hours, 43 minutes standby. I have not picked up the phone since 3:10 pm, I've lost 8% battery life. It's obviously Push. I just turned it off. Thus, enabling push meant that the phone was "in use" for the 33 minutes that I had it sitting on my desk. Losing 8% in 33 minutes equates to a full discharge from 100% in about 6 hours and 52 minutes. That's about what I was getting before when I first set up the phone.
CONCLUSION: Push doesn’t work properly on my particular iPhone, or with my exchange account, because my co-worker’s phone is setup with Push and does not have this issue. So there's just something software-related in the way it interacts with my exchange account that simply kills the battery.
This, of course, should not be the case - my old Droid never had this problem - and I suspect Apple will find a fix. But the geniuses at the Genius Bar were no help this time. I'm going to go back and see if they can run diagnostics when push is enabled. I should have asked them to do that then.
Message was edited by: vlapira