I made a charge adapter for my spektrum radio (pics)

If your looking for a battery you can get a real cheap lipo off ebay that works great. Its a 3 cell 2600 made by a place called Boom Racing. I gave like $24 shipped for mine and I have charged it like 3 times in 6 months and I play with one of my rc cars at least every other day. Its lasts a long time.