RE: Batteries
Venom would consider the wall charger a trickle charger. The minimum charging amps is 3 max. HLs are either 250 or 500 milliamps.
I didn't want to spend a fortune, this one plugs into the wall and has served me well:
[link=http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXCLD5&P=ML]Duratrax Piranha[/link]