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Old Jul 09, 2005, 05:11 AM
Ray
Guest
n/a Posts
RX battery on a electrical helicopter

LS

Hi I am a newbie on RC helicopters so thats why this probably unsual
question.

I just finished building my JR voyager E and when connecting my Futaba
servos, gyro an RX I found that th receiver will automatically be
powered by the main battery (I believe, through the ESC leads). SInce
this was the case I just left my RX battery out of the model, figuring
I wouldn't have much use for RX battery power once the main battery was
dead anyway.

Later i found that on other helicopters (might have bene a voyager E as
well) people did connect a separate RX battery. In addition I realized
I was basically powering many of my components at 8.4V i.s.o. 4.8V,
everything seems to be workin fine however

e.g. now my question is can I leave the system connected like it is or
should I really find a way to sepparate 4.8V and 8.4V in my model. If
so, how do I accomplish this, did I make a mistale somewhere.

Thanks in advance
Remi

Old Jul 09, 2005, 05:11 AM
Funfly3
Guest
n/a Posts
Re: RX battery on a electrical helicopter

most if not all speed controllers have a circuit to drop the 8.4v to 4.8v,
and when the main battery starts to go flat you don't have enough power to
fly the helicopter so you normally are forced to land before the power dies
to the radio , I personally don't know of a electric helicopter in my club
that uses two batteries, if you do you need to carry two remove the red or +
lead from the ESC cable that goes to the RX
Kevin
"Ray" <remilio@zonnet.nl> wrote in message
news:1120893183.301992.41280@z14g2000cwz.googlegro ups.com...
> LS
>
> Hi I am a newbie on RC helicopters so thats why this probably unsual
> question.
>
> I just finished building my JR voyager E and when connecting my Futaba
> servos, gyro an RX I found that th receiver will automatically be
> powered by the main battery (I believe, through the ESC leads). SInce
> this was the case I just left my RX battery out of the model, figuring
> I wouldn't have much use for RX battery power once the main battery was
> dead anyway.
>
> Later i found that on other helicopters (might have bene a voyager E as
> well) people did connect a separate RX battery. In addition I realized
> I was basically powering many of my components at 8.4V i.s.o. 4.8V,
> everything seems to be workin fine however
>
> e.g. now my question is can I leave the system connected like it is or
> should I really find a way to sepparate 4.8V and 8.4V in my model. If
> so, how do I accomplish this, did I make a mistale somewhere.
>
> Thanks in advance
> Remi
>



 


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