I'm new to the electric RC stuff and was wondering if you are using 7.4v or 11.1 v lipo battery pack where is the voltage being dropped for the receiver and servo power ?

Since they cannot go above 6v.

Thanks !!

The ESC (electonic speed control) does this for you. Both the brushless and brushed speed controlers regulate the voltage going to the receiver power bus through the connector that plugs into the throttle channel on the receiver. If you want to use a seperate battery for the reciever and servos, you need to break (cut) the red lead that goes from the ESC to the reciever and then power the receiver and servos with a seperate battery.

That really helps alot.

Thanks !!!!

A gentleman from Castle Creations told me that the BEC will convert the extra voltage it has to drop into heat (so the 3 cell LiPo will run the ESC hotter than the 2 cell LiPo). Because of this, for their programmable ESC's anyway, they recommend using fewer servos. I'm assuming more servos means more current running through the BEC which means even more heat.

Adequate cooling for the ESC would seem to be in order if using 3C LiPo.

For those in the know, please correct me if the info is incorrect. I contacted FMA about the same thing and they gave a slightly different answer to my question regarding 3C LiPo's and the number of servos that can be used.