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Old Nov 19, 2012, 09:36 PM   #1
mikeoui
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iPad mini says "Not Charging" but is

I got my iPad mini today and it came with the battery at 80%. I plugged it into my computer to sync and it said "Not Charging" because you can't charge an iPad on a computer, but when I unplugged it 2 hours later it was at 100% charge. Not sure if this is a problem or not.
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Old Nov 19, 2012, 09:37 PM   #2
Btrthnezr3
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I believe it's because it's not pulling much power from your comp.
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Old Nov 19, 2012, 10:00 PM   #3
mikeoui
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Originally Posted by Btrthnezr3 View Post
I believe it's because it's not pulling much power from your comp.
Just weird that it would say "Not charging" but actually be charging.
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Old Nov 19, 2012, 10:17 PM   #4
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Quote:
Originally Posted by Btrthnezr3 View Post
I believe it's because it's not pulling much power from your comp.
This. It says "not charging" but it's actually charging really slow.
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Old Nov 19, 2012, 10:23 PM   #5
mikeoui
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This. It says "not charging" but it's actually charging really slow.
Okay, that makes sense I guess. Thanks!
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Old Nov 20, 2012, 12:25 AM   #6
lianlua
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Quote:
Originally Posted by mikeoui View Post
Just weird that it would say "Not charging" but actually be charging.
It works like this. A normal, fully standard USB port can supply 500mA of power (2.5W).

An iPad mini usually uses about 1.7W-2.2W while you're using it. It will tell you that it is "not charging" because the power you're draining while using the iPad is basically the same as what is coming in through the computer. Almost nothing is going into the battery. I don't know what the exact cutoff is for Apple, but it looks like if the battery isn't getting at least about 1W, it will display the "not charging" message.

But as soon as you put the iPad down and it goes to sleep, that full 2.5W goes into the battery. It will slowly charge the battery until it's full, about 7-8 hours from empty on a normal USB port and about 3.5 hours on the included 5W power adapter (or on a compatible Mac with high-power USB ports).
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Old Nov 24, 2012, 05:21 PM   #7
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http://support.apple.com/kb/HT4060
This should answer your question
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Old Jul 27, 2013, 08:52 PM   #8
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