When looking at a charger look at the maximum watts. The AC6 mentioned above has a max out of 50 watts. A 3 cell LiPo at 11.1 volts means a max charge rate of about 4.5 amps. A 6 cell at about 22 volts means a max of about 2.25 amps. Often the descriptions of units can state X amps, but that output is often at lower cell counts.
Having a unit that has an AC connection is not that great an advantage. I use a converted Computer power supply for my 12 volt supply in the house with 2 pairs of female banana jacks. Others in the group do as well. I have a permanently connected Cigarette lighter adapter in my car with Banana jack females soldered on the wire ends. I have various chargers all with male banana jacks on them. I have several chargers, some of which are no longer available so I will not mention them.
The most useful one I have found for LiPos is this one for 24.95US
http://unitedhobbies.com/hobbyking/stor ... ge_Capable
It can charge 2 2cell packs at a time or 1 3 cell or 1 4 cell. No LCD no messing around. Just pick the charge rate and go. I use it for all my batteries down to 600 mah. They are inexpensive enough that you can get 2 or 3 for less than some of the more complex units. Sometimes charging 2 or 3 batteries at a time is very useful.
The next order I place with Hobby King will include another of these.
If the Tx you have uses 8 cells then Hobby King has LiPo packs for transmitters, that may replace the NiMh pack. It is important to put voltage dropping diodes between the pack and the Spectrum Tx if you use a 3 cell pack. Using LiiPo will give you hours of run time and reduce the self discharge, so the Tx is always ready to fly.
