I have been pouring over chargers for the last couple hours. I am looking at this one made by DuraTrax:
http://www2.towerhobbies.com/cgi-bin...?&I=LXCLD5&P=7
I am not sure it comes with the proper connector, but I was thinking I could just buy one of these:
http://www2.towerhobbies.com/cgi-bin...?&I=LXH440&P=7
Does anyone have any experience with this charger?