Ni-MH ( nickel metal hydride ) batteries are hard to come by because their some of the higher quality batteries out now. Most remote control cars require NiMH batteries as does mine and I have an excellent site you can find them at for cheap. I really found a great deal on them.

I was able to pick up some really cheap AAA NiMH rechargeable batteries at all-battery.com, you can find them under the NiMH Batteries section.

On Youtube I found a video where you could use your AAA batteries to even power a TV set, thats insane! I have the video for you below.

How to power a TV with NiMH AAA batteries