I had an ESC that did not have a built in BEC that I wanted to try on an E-Falcon. I bought a BEC to use with it. I wired my harness as described by dditch. When I plugged in battery 1 it worked fine. When I plugged in battery 2 in a few seconds it popped and smoked and of course no longer worked. Did I do something wrong here? Did I have the wrong type BEC? It was rated at 2-10 cell LiPo max 42 volt dc.
ESC/BEC problem
Moderator: hbartel
ESC/BEC problem
Ben Phillips
RCCA #924
RCCA #924
Re: ESC/BEC problem
You wired it wrong. You should have wired it across what you call battery #2. What you call Battery #2, I labled as battery #1 in my diagram. That's the lower 3S battery.
The ESC signal Ground is connected to the lower battery ground and so must the BEC.
Look at my linked file again, you'll see how I have the BEC- wired to Battery 1 connector and that battery 1 connector's GND is wired to the ESC gnd.
Since your BEC can handle 6S, you COULD just wire it Directly to your ESC plug side.
The ESC signal Ground is connected to the lower battery ground and so must the BEC.
Look at my linked file again, you'll see how I have the BEC- wired to Battery 1 connector and that battery 1 connector's GND is wired to the ESC gnd.
Since your BEC can handle 6S, you COULD just wire it Directly to your ESC plug side.
Re: ESC/BEC problem
Thanks David. If I had a 50/50 chance of doing it wrong I would. I see the error of my ways. I guess that is how you learn!
Ben Phillips
RCCA #924
RCCA #924