best power source for the ar2000 rx?

[jaymillwall]

:) Hi all question as above.
I have a couple of nitro planes,a piper cub and a ats flair that i recently received second-hand they both come with rx and tx but there old hitec focus sixes on 35 mhz.
I have a spektrum 2.4 ghz ar2000 six channel rx spare from an old heli so i would like to convert them to 2.4ghz,when they were used on the heli they got there power from the esc via a 3 cell lipo using an inbuilt ubec so what suitable battery can i use for these to power the 4 servos now i have a 4 cell nimh 4.8v 2100 mah pack that powered the servos on the 35 mhz rx will this work?
sorry for the newbie questions
thanks
j

[rodneygt]

First is the ar2000 a full range rx? I'm only familiar with the ar500 5 ch., ar6200 6 ch and ar7000 7 ch (plus whatever the 9 channel + rxs are called) as being full range - at least in the US - don't know about where you are. Except for the ar500, the other full range rxs have at least one satellite rx. The 500 uses one long whip in place of the extra satellite.

Because of some issues that spektrum had (search in the radio forum), with the exception of my 4 servo trainer plane, I only run 5 cell 6volt batteries. I do run the 4.8V 1100mah in my trainer tho and have not had a problem.

You can use lipos, etc with voltage regulators - but I don't know how to do that.

[fhhuber506771]

We'd have to look it up... I haven't heard of the AR2000. It may be an older "DSM" RX instead of a modern DSM2 type.

If its an older DSM RX, its likely that it will run on 4.6v to 5.2v (4 cell Nicd) without problems. The method for connecting that would be to use a Y harness and connect the battery/switch harness to the same channel port as one of the servos.

As long as your 4 cell NiCd is adequate for the servo load, voltage drop-out shouldn't be an issue.

The RX should also handle 5 cell NiCd... but some servos won't handle the added voltage. I burned up a servo trying that. 5 of the servos in the plane were fine on 5 cells. One wasn't. I was lucky that the servo burned up on the ground because it took out the RX switch harness with it.

[jaymillwall]

:) Cheers for the info guys.
i made a mistake :D re the ar2000,it is actually the ar6200,(here in the uk)@ least and is a full range 6 channel rx with satellite receiver,i took the chance last night and connected the 4cell nimh pack to the battery port and connected all servos it run fine allthough was not in flight ;)
Thanks for the info guys
jason

[fhhuber506771]

6200 IIRC can run from 3.7V (high risk of brown out that low) to 9.0V with your max voltage limit normally being determined by what the servos can handle.
Few servos can take more than the 6.0V nominal... appx 7.0V peak of a 5 cell NiMh.
Many servos 9 grams and smaller (servo weight) can't take more than 6.0 v PEAK, and a 5 cell NiMh/NiCd will destroy them.

The AR 6200 is appropriate for planes from appx 1 lb to appx 10 lb. electric, glow or sailplane. I wouldn't use it in a larger gasoline powered model, but I bet some have done that with success too.

[jaymillwall]

6200 IIRC can run from 3.7V (high risk of brown out that low) to 9.0V with your max voltage limit normally being determined by what the servos can handle.
Few servos can take more than the 6.0V nominal... appx 7.0V peak of a 5 cell NiMh.
Many servos 9 grams and smaller (servo weight) can't take more than 6.0 v PEAK, and a 5 cell NiMh/NiCd will destroy them.

The AR 6200 is appropriate for planes from appx 1 lb to appx 10 lb. electric, glow or sailplane. I wouldn't use it in a larger gasoline powered model, but I bet some have done that with success too.

Many thanks for the comprehensive post.
The rx will be going in a 66inch glow powered ats kite powering 4 servos so i will stick with the 4 cell nimh packs i have already for the time being (4.8v) 2200mah and always make sure the in good condition before flying.
thanks again
jason