Thought I would add one. The Hobbico Quick Field DC Charger MKII 12 Volt:
http://www2.towerhobbies.com/cgi-bin...?&I=LXCTZ5&P=0
I'm new to electric flight, so I don't have anything to compare it to. But it works well for me. Charges NiCD, NiMH, and Lipo. Has two sepparate charging "stations" so you can charge two batteries at the same time. Has variable charge rates, and jacks for monitoring battery with a volt meter. Since it's 12V, when I'm using it at home, I plug into my DuraTrax power supply: http://www2.towerhobbies.com/cgi-bin...?&I=LXUF47&P=7