Roltech: You don't need a new charger, And if you change over to NIMH the battery gonna say you
have to use a NIMH charger ONLY............. BS I just charged my 2300ma reciever and 2800ma
transmitter battery on the trickle charger I got with my Nextar a year @ a half ago.And there both
NIMH ( All I USE) I asked my LHS this and verified it Through someone at a RC convention we hade
here in Ft Worth, who was selling an assorment of batteries. I use a quick field charger now and then
but if I want a good deep charge I use a wall trickle charger over night. as I said above with that kinda
MA's I can fly ALL DAY without recharging!!!!! (6TO7 hours with 4 to 5 flights an hour) You won't notice
that much more endurance with just 100 more MA or speed or torq, you get those through Volts. Just
in case I called HORIZON 1st because I've never owned JR and yes you can put a 6 volt battery in your
MUSTANG. To see a BIG difference go to at least 1500 ma and 6 volts THEN you'll notice it