Comments on: Analyzing 3G iPhone Battery Life, Part 1

By: tungsten2k

tungsten2k — Sat, 28 May 2011 17:08:16 +0000

It would be awesome to see the results of your testing by use of the “BatteryDetective” application (available on Cydia on jailbroken phones) along with the results from the standard battery info apps from the AppStore (that show battery capacity as “2G Talk Time”, “WiFi Internet Use”, etc, and somehow correlate all three methods so we can, once I’m for all, get the real skinny on iPhone battery capacity, usage, drain, in order to accurately determine how each feature trades off with respect to battery usage.

Even more useful would be a concise set of tests that could be repeated for new iPhone releases, as well as for others to duplicate, in order to determine specific device battery capacity or device drain issues.

I have considered doing this since having my iPhone 4 replaced due to failure, and observing abysmal battery life since. Unfortunately, the replacement was at 4.3.0 and cannot be downgraded to the same version as my previous iPhone 4 (4.2.1), so direct comparison is impossible.

Until we collectively craft the Rossetta Stone of battery usage, the truth of what features between the different software releases most affect battery life will remain a mystery.

By: Pullman

Pullman — Sat, 11 Jul 2009 23:06:48 +0000

Very interesting and useful study, thank you. I have had the 3GS a week now. I did notice a slight improvement in battery life after 3 full discharge-recharge cycles. But the battery is still not performing well.

As of now, i have 9.00 hrs of standby with 3hrs11min usage, almost all of it surfing over wifi, the rest two short 2G calls and a few sms. 3G, location services and BT are off and i don't auto check any email accounts. Battery is now 63%. When i surf over 3G i can see the batterylevel literally dropping. I will bring it to Apple.

By: stevemcmillen

stevemcmillen — Sun, 26 Oct 2008 00:52:38 +0000

I’d be interested to know if you are aware of tools that helped you arrive at these metrics. I have purchased some USB cables for charging my phone that do not work as expected.

Are there any apps that you know of that provide more detailed stats on the iPhone? It would be great if someone came out with something like Coconut Battery for the Mac which provides very detailed info about your battery such as # of cycles its gone thru and current capacity against original capacity.

By: Mobile Zeitgeist | Das iPhone doch nur ein Briefbeschwerer?

Mobile Zeitgeist | Das iPhone doch nur ein Briefbeschwerer? — Mon, 21 Jul 2008 13:40:59 +0000

[…] Hier gibt es noch ein paar detaillierte Infos zur Akkuleistung inkl. einem Test. […]

By: mopocket » Blog Archive » Apple Says: Just Pretend Its Not An iPhone (3G That Is)

Fri, 18 Jul 2008 16:25:53 +0000

[…] Nevertheless, there are many amazing things about the Phone that I will report on soon, as the “living with the iPhone 3G” series continues. Here is an interesting link I just came across at posting time […]

By: iamse7en

iamse7en — Wed, 16 Jul 2008 06:35:16 +0000

Very interesting. Thanks for that.

By: Hondamaker

Hondamaker — Wed, 16 Jul 2008 06:03:47 +0000

Very nice battery study, Joe. Can’t wait for part 2. I’ve been curious about the 3G and battery life. I have used 3G a whole lot as of yet, having wifi in the house and my workplace is out of 3G range. Keep up the good work!