UBEC wiring

[lobstermash]

I got a couple of really cheap UBECs on ebay. Unlike other UBECs though, they have battery input wires that correspond to a Futaba type connector. I was confused at first, as I wasn't sure what to do with the third input wire (the white one). Doing a bit of Google research, it seems the white wire on Futaba type connectors is a signal wire. Therefore, this wire is redundant, right? The white wire on these UBECs goes straight through the UBEC's shrink wrap. I'm guessing I can remove the white wire altogether? Is that right?

 

[Ak Flyer]

I think I follow you, my batteries an switches for my nitro planes use a similar connector I think, but they only have two wires. A picture would be worth a thousand words in this case.

 

[colorex]

Post a picture please.

 

[lobstermash]

Here's a pic of the product when it arrived. I removed the white wire altogether. I'd take a photo of my soldering work but it's in my Mig...

http://i875.photobucket.com/albums/ab314/youkeshu/youkeshu-1/I505-2.jpg

 

[fred0000]

the white wire is not needed, you are correct. make sure to pull the red wire from the ESC's receiver plug when using an external BEC.

 

[lobstermash]

Yeah, I wasn't sure about that. The ESC doesn't have a built in BEC. Do I still need to disconnect the red wire?

Just done a bit more research. If you have an ESC with a BEC build in, you need to cut the red/orange (depending on brand) wire to make the UBEC work properly. However, if you have an OPTO ESC, you should not cut the red/orange wire.

 

[colorex]

Yeah, I wasn't sure about that. The ESC doesn't have a built in BEC. Do I still need to disconnect the red wire?

No. As you said yourself.

 

[fred0000]

Yeah, I wasn't sure about that. The ESC doesn't have a built in BEC. Do I still need to disconnect the red wire?

No, it'll be perfectly fine if you leave it hooked up, (I would it'll keep the wiring cleaner)