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What are mAh's and why should I care?

1/26/2015

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Without trying to get too technical, in simple terms, mAh is commonly used to describe the total amount of energy a battery can store at one time. A battery rated for more mAh will power a phone for a longer amount of time, given the same usage pattern. mAh, and sometimes written as mAH stands for milliampere hours. Basically, the more mAh, the more battery power you have. If you have an external battery you use to recharge your phone when you're away from a wall outlet, somewhere on it is its mAh capacity. The ones that can recharge an iPad or your phone several times often have a capacity greater than 10,000 mAh.

So why this post?

Because Reddit and other sources, us included have been advising 5C owners to replace their battery with a 5S battery if they feel like their original battery is no longer performing up to standard and the phone is out of warranty. Click the link below for info on iPhone battery swapping on Reddit.
Link to Reddit article about battery swapping 
Apple's iPhone 5S battery is rated at 1560 mAh while the 5C is rated at 1510. The iPhone 5 is rated at 1440, but it doesn't matter because it has a different connector to the logic board than the 5C/5S. The 5C/5S share the same connector, and the battery is physically the same size. So why put a 5S battery in your 5C? Well, for 3.3% more battery life of course! Hey, it's not much, but it's still more.

Why is this now a problem? We found out today that with iOS 8.1.2, Apple has made it so that you cannot interchange the batteries on these two phones. If you have a 5S battery in your 5C (or even the other way around for some reason), you may notice your phone "boot-loops" for an unknown reason. If so, and you know you had a battery swap - swap back and retry.

How do I know if I have the right battery?

Underneath the text, "Li-ion Polymer Battery" is an APN number. Below are the APN's for the two devices in question. If your 5C has a battery with a 5S APN#, you may experience problems on iOS 8.1.2

5S Battery APN# 616-0721, 616-0728, 616-0719, 616-0718, 616-0722, 616-0728, 616-0720


5C Battery APN# 616-0669, 616-0667, 661-8300




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