kamakazi

My Feedback: (1)

I want to use my trusty .40 size ugly stick and convert it to electric. I have all the components already installed but I want to use the same standard servos thats already in it. Should I use my 11.4 Lipoly battery's energy to power the servos or should I use the regular 4.8V nicad battery thats already installed??? A 2 battery system.

JohnShe

What is the capacity of your LiPo (mAh)?

Is weight an issue? You will be adding weight with a second battery pack.

You can fly either way, but you need enough power to run your servos even if the motor fails. I fly with one battery pack powering everything in the plane. I also use a low voltage warning circuit to be sure that I have enough juice to land the plane.

spog1

It depends on yourESC, or your BEC if using a separate unit. You should have a switchingBEC capable of 3 amps or more.

cubaneight

These are excellent, I have three in use at the moment with no probs.
http://www.hobbyking.com/hobbyking/s...w_5A_SBEC.html

C8

krashkart

My Feedback: (5)

I am running a 450 on mine currently and it supplied the voltage for my servos without a problem.
I am running a 3s 2200 battery and have lots of flight time with it that way.

chuckk2

I'd expect that the removal of the fuel tank, along with the lighter weight electric motor and speed control will result in a change in the CG from the glow engine and so forth.
A decent speed control also has a built in SBEC capable of about 2-3A at 5vdc, so you should be able to use the existing servos.

HANGTIME II

when you switch to an electric speed controller (ESC) with a battery eliminator circuit (BEC) it will (or should) save enough power to control your servos enough to land the plane. Many will warn you with a brief 1 or 2 second power loss that requires a throttle back then throttle up to get her back. Best to time your flights and not get to that point if you can help it. Hard on the batteries.