iPhone Battery Details Explained

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Date: Friday, July 13th, 2007, 10:03
Category: iPhone

iphone.jpg
We’ve been talking about the iPhone battery a fair amount this week and while there’s apparently no clear explanation as to whether there’s a bug in the software that controls it’s charge, the guys at Macworld were able to get to the bottom of the battery’s specific functions and expected life span in this article by Jason Snell.
Here, Snell explains that while the iPhone’s battery – like any other – can be expected to eventually die, reports by outlets such as CNET that the battery will last for about 400 charges or two years of use are being debunked.
Apple marketing vice president Greg Joswiak went on the record to comment that the iPhone’s battery can be expected to lose about 20% of its overall capacity “after 400 full charge and discharge cycles.”
Joswiak then went on to explain that “topping a battery off”, or recharging it from three quarters to full, qualified as a quarter charge cycle.
Joswiak also commented that tips toward battery conservation had been posted on the iPhone web site and that use and performance would vary from user to user.
For users needing to replace their battery a few years down the line, Apple will apparently offer a battery-replacement program, replacing batteries that die young and are under Apple’s warranty for free.
If you have any ideas on this or have seen some strangeness via your own iPhone battery, let us know over in the forums.


iphone.jpg
We’ve been talking about the iPhone battery a fair amount this week and while there’s apparently no clear explanation as to whether there’s a bug in the software that controls it’s charge, the guys at Macworld were able to get to the bottom of the battery’s specific functions and expected life span in this article by Jason Snell.
Here, Snell explains that while the iPhone’s battery – like any other – can be expected to eventually die, reports by outlets such as CNET that the battery will last for about 400 charges or two years of use are being debunked.
Apple marketing vice president Greg Joswiak went on the record to comment that the iPhone’s battery can be expected to lose about 20% of its overall capacity “after 400 full charge and discharge cycles.”
Joswiak then went on to explain that “topping a battery off”, or recharging it from three quarters to full, qualified as a quarter charge cycle.
Joswiak also commented that tips toward battery conservation had been posted on the iPhone web site and that use and performance would vary from user to user.
For users needing to replace their battery a few years down the line, Apple will apparently offer a battery-replacement program, replacing batteries that die young and are under Apple’s warranty for free.
If you have any ideas on this or have seen some strangeness via your own iPhone battery, let us know over in the forums.

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