For some reason my ipad doesn't charge while connected to any of my computers. It isn't the cord because it charges through the wall by itself as well as on my keyboard dock. Any ideas?
iPad, iOS 4.3.2
It's normal. The computer's USB slot has too low of wattage for the iPad's big battery.
If you put the ipad to sleep, it will charge very slowly, on the usb port.
Nothing is wrong. Most USB ports won't put out enough power to properly charge an iPad. They may charge very, very slowly if the screen is off. Use the wall charger.
The wall charger is best to use. The USB ports on the back of my 2010 iMac work but not my Moshi iLynx hub or the Apple keyboard USB ports. It is a nuisance but that's the price of a quick charging iPad.
http://www.apple.com/batteries/ipad.html
Charging Tips
The quickest way to charge your iPad is with the included 10W USB Power Adapter. iPad will also charge, although more slowly, when attached to a computer with a high-power USB port (many recent Mac computers) or with an iPhone Power Adapter. When attached to a computer via a standard USB port (most PCs or older Mac computers) iPad will charge, but only when it's in sleep mode. Make sure your computer is on while charging iPad via USB. If iPad is connected to a computer that’s turned off or is in sleep or standby mode, the iPad battery will continue to drain.
My ipad says it isn't charging while connected to my computer. What's wrong?
