Hi Hank,

Richard, Anna, Joseph, and others are correct.  The standard USB2 specification 
for computers means that most laptops will not supply enough power to charge an 
iPad.  This is also true of the older Mac computers -- certainly any model made 
before 2007.  On the newer Mac computers the USB ports are high power USB ports 
that will detect when an iPad or iPhone that requires more power to charge are 
connected, and provide enough power to charge the device, slowly.  If your iPad 
is shut down when it is connected it will slowly charge.  You can read more 
about this in the MacWorld article titled "The iPad's charging challenge 
explained" by Dan Frakes, March 23, 2012:
http://www.macworld.com/article/1150356/ipadcharging.html
(On a Mac you can use Command-Shift-R to read this in Safari reader, with only 
the text of the article shown.)

As to what you can do about this, apart from using your wall charger, which is 
the quickest way to charge your iPad, there was an AppleVis post that referred 
to a USB adapter called the "RAVPower RP-UA01" that is supposed to let you 
charge your iPad from your computer USB port (but I don't know how fast).  I'll 
give you links to this product at New Egg and at Amazon.   The product is 
currently featured for $7.99 at New Egg.  It is $9.99 at Amazon, which may have 
an easier return policy. 
• New Egg RAVPower RP-UA1 Smart & Swift PC USB Charger for iPad/iPad 2/New iPad 
(currently $7.99 with free shipping in continental U.S.) 
http://www.newegg.com/Product/Product.aspx?Item=9SIA0WP08B2732
• Amazon RAVPower RP-UA01 iPad USB Charging & Sync Adapter - Allows you to 
charge your iPad iPad 2 the new iPad with any computer or USB Hub ($9.99 
including free shipping)
http://www.amazon.com/RAVPower-RP-UA01-iPad-Charging-Adapter/dp/B006WUC5FU

You can also read the reviews at these sites. HTH. 

Cheers,

Esther


On Jul 6, 2012, Richard Turner wrote:

> No iPad charges from a computer. They require twice the power provided by the 
> usb port.
> 
> (Sent from my iPhone)
> 
> On Jul 6, 2012, Hank Smith <[email protected]> wrote:
> 
>> his ipad was iven to me by a friend
>> it charges fine via wall charger but doesn't charge via computer.
>> Hank

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