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Its not a power supply. Call them on the effectiveness with the Ipad 3. Not sure how long a battery like that would take to charge it.

I would look at batteries that can charge a Macbook Air.
 
Any power supply would work with the iPad.

I use this one for my iPad and iPhone at the same time:

http://www.amazon.com/gp/product/B0053J2FII/ref=oh_o03_s00_i00_details

No issues/problems or incompatibility messages at all. And I've also used others that's only powered by AA/AA batteries and it still worked.

Gotcha, thanks for the response. For some reason I was under the impression that if the external battery didn't output enough volts (?), the ipad wouldn't charge. Thanks!

I've also been hearing a lot about the ipad not charging when in use, so I just wanted to make sure this would charge.
 
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Gotcha, thanks for the response. For some reason I was under the impression that if the external battery didn't output enough volts (?), the ipad wouldn't charge. Thanks!

I've also been hearing a lot about the ipad not charging when in use, so I just wanted to make sure this would charge.


AFAIK, 500 mA is the minimum, the higher it is the faster it will charger. The double charger that I linked to you has both a 500mA and 1A. The 1A charges a lot faster, but it drains the battery pack a lot quicker.
 
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