| |
You are here: Experts > Hobbies > Radio Controlled Vehicles > RC Model Airplanes/Cars/Boats > Receiver battery, UBC...
Expert: Ken Myers - 11/8/2009
Question
Hello Ken,
I am building a BH Mosquito EP that will have 7 servos. This is the first plane I will fly with that many servos. All my other planes are electric, many of them twins, with 4 or 5 servos, but I have always used ecs with BEC. Could I go ahead without a receiver battery or a UBEC if I am conservative with my flying time and keep the lipo reasonably charged? Will a 2s lipo receiver battery do the job of feeding power to the servos?? How about a UBEC? the UBEC seems to be a little more complicated to install..
Thanks,
Philippe
Answer
Hi Philippe,
You definitely need either a receiver battery or a switching type battery eliminator circuit. UBEC is a specific brand, but it has taken on a generic meaning for all switching type BECs. They are not hard to install and seem to work quite well. You could use a 2S Li-Poly for a receiver battery with a voltage drop circuit, but that is basically the same as using a stand alone switching BEC. A 2-cell lithium iron phosphate pack makes a good 6v receiver battery without requiring any extra circuitry. In a plane this size, the weight of a 720mAh NiMH receiver pack would hardly be noticed.
Good luck with your project.
Sincerely,
Ken
Add to this Answer Ask a Question
|
|
