IPad HD loses battery power quickly. How can I make sure my iPad has enough battery life?

SOURCE: 3g not working on apple Ipad

As far as I understand it the ipads that have just been released are wifi only. 3g are available from late April, see the www.apple.com for details.

SOURCE: Ipad won't turn on

Hold the on switch and menu button together for a hard reset. If you can reset it, there may be an issue with your motherboard. If apple doesn't replace it for you, You can get the board at iPad Repair and there is a guide that shows you how to put in the part at Electronics Repair Guide.

SOURCE: issues with my Ipad wifi, IPAD wifi not working

I'm assuming you excluded the issues desribed in other posts (with being connected to the wrong network) and you actually have a hardware issue. You can always take it to the apple store and demonstrate the problem there, you'll probably receive a replacement. If you have issues with the warranty, there are third party places that will find our what's wrong. If you want to do it yourself, the good news is, it's not too hard to open it. Here is an iPad Repair Guide that shows how to open an iPad. If you want somebody else to do it for you go to iPad Repair NYC.

SOURCE: Can't charge the ipad from the USB charger

The USB port of a Computer may not provided the same amount of charging current as your wall charger. Do you have other power hungry devices connected to the computer? It may help to get a USB hub with external powersupply. If all else fails the iPad doesn't charge on any USB port, you may actually have a hardware issue. You can always take it to the apple store and demonstrate the problem there, you'll probably receive a replacement. If you have issues with the warranty, there are third party places that will find our what's wrong. If you want to do it yourself, the good news is, it's not too hard to open it. Here is an iPad Repair Guide that shows how to open an iPad. If you want somebody else to do it for you go to iPad Repair NYC.