If I had a radio (other than my DX6) that still took a 8 cell holder, I would just put a 2500Mah 11.1v LiPo in it, and charge it once a month.

TrueRC 2500mAh 11.1V 3S1P pack TX pack = 30$ + ship
(just search for DX6 to find it....one long page)

http://home.comcast.net/~truerc/read...eady_packs.htm


I am going to order the above for my DX6, I just have not bothered yet as it's not really warm enough out for flying....I just keep putting it off.