iPad says not charging

My cousins iPad says "not charging" when plugged in.

I've tried wall outlets, USB on the back of the computer, USB on a hub, and about 8 different cables.

The only time it charged was connecting it via USB to a different Mac other than his. It didn't say "charging" but it slowly started charging over time, NO INDICATION though.

The software is up to date 5.1.1 or whatever.

What is the problem here?

Do you have the OEM charger?

USB outlets generally do not provide enough power to charge an iPad (or at least to charge it so slowly it would take days to charge up). Most Apple USB ports provide 500milliamps (0.5A), when the iPad needs at least 2.1A (four times as much power) to charge normally.

If you are plugging your iPad into an *iPad certified* wall charger, it should work fine. But if you're using an iPod/iPhone charger, even plugged into the wall it will not charge the iPad very quickly. For best results, use the Apple OEM wall charger that came with your iPad.

Use your Apple OEM charger for the iPad.

Period.

The iPad, or any iOS device for that matter, doesn't specifically indicating that it isn't charging. There is, however, an indication that it IS charging both with the battery gauge showing a lightening bolt on it and a larger lightening bolt on the lock screen.

If the device isn't muted, there is also the audible indication that the device is charging.

So as the others have suggested, use the Apple cable and plug into the wall to charge the iPad in a decent amount of time..

Sorry for not responding back.

We got an original iPad charger from a friend and tried a different cable and it worked. It seems the generic apple USB cable can get screwed up inside easily.

I know USB cannot deliver as much power as a wall outlet, although there are USB ports that can charge decently. Both computers were Core 2 Duo's but one of them would not charge the iPad. The other computer could charge it and both ports were USB 2.0.

Those ports are simply not putting out enough wattage to charge an iPad.

Raz0rEdge said:

The iPad, or any iOS device for that matter, doesn't specifically indicating that it isn't charging.

Click to expand...

Actually - if it isn't getting enough current the iPad does specifically indicate that it isn't charging.
Confirmed: "Not charging" iPad does recharge | TUAW - The Unofficial Apple Weblog
That being said - it isn't charging when the screen it on - but if you turn the screen off - then it will charge slowly.