iPhone 3G: Battery Life – Part 3

UPDATE: Once you are done reading this post, make sure to go to the homepage of this blog (http://gadgettechie.net) to read the other parts of this series. You can also click on the Apple category on the right of this page.

You can find the other parts of this series here: Part 1, Part 2, Part 3, Part 4, and Part 5.

In this run I am using the following settings:
3G: Off
Location Services (GPS): Off
Wifi: Off
Push: Off
Fetch: Manually
Brightness: 50% – Auto-Brightness On
3rd Party Apps Installed: Yes

This is the same setup as in Part 1, but this time I did not use my C.E.O. Premiere holster with the magnetic flap (for a better understanding of why this makes a difference, please refer to Part 1).

This is the result:

As you can see, I got approximately 1 hour and 20 minutes more battery life than I did in Part 1. This leads me to believe that the magnet on the flap of my holster might be causing a problem. Because it is not a HUGE difference in battery life, I do not want to say conclusively that it is without a doubt a problem with my holster.

My next test will be with the following setup:
3G: On
Location Services (GPS): Off
Wifi: Off
Push: Off
Fetch: Manually
Brightness: 50% – Auto-Brightness OFF
3rd Party Apps Installed: Yes

And without the holster. I will also NOT run the AIM app as I have been doing but instead will just use the phone as I normally would. The only reason I used the AIM app before was to be able to run the battery down faster to get more tests done in one day without having to sit there and actually use the iPhone for 5 hours.

If this next run with 3G shows significant improvement in battery life from the first 3G test I conducted in Part 2, then I will have to say that my C.E.O. Premiere holster is the culprit. I hope that is not the case because I really like my holster and if I do not think I would be able to switch to a velcro one.

Update: Now that I think about it, I am going to run the next tests with Auto-Brightness OFF. The reason for this is that with it on, it is easier for the test results to get skewed by the time of day in which I am conducting the test. For example, at night, the screen is not as bright as during the day and so the battery will last longer at night.

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