Understanding a external BEC
 

I'm sure I have this right, just want to verify so I don't fry something.

My brother currently runs a 1s lipo on a mamba pro 1 cell ESC with a 2s life receiver pack.

He wants to simplify and only charge one battery. Problem is the ESC has no BEC in it.

Looking at this BEC

http://www.hobbyking.com/hobbyking/s...SBEC_UBEC.html

Is it as simple as just tapping the leads from the lipo, switching to 6v and connecting it to the receiver ?

From what I've read, since the ESC has no BEC there is no need to cut the red wire, correct ?

Finally, does the balance plug coming out of the lipo have enough AWG to tap power from to power the receiver ? It will be running a Savox 1256 servo and transponder. The rx is a Futaba 301 I believe, the one that comes with a 4pls.

Thanks.

The BEC can not put out more voltage than the battery is supplying. You would a booster of some sort. Novak used to make one, don't know if they still do or not.

For one cell applications, you need a receiver pack or booster, nothing else will work. BEC's are used for 2-6 cell applications.

I left out the one critical piece of information...... he is changing to a 2s. That's what I get for composing on a tablet.

Since he will be using 2s packs it it will be fine. I put my BEC into the battery plug on the ESC. I would not use the balance leads as they are usually very small wire and only see 500-1000MAh.

The 4PLS comes with an R304sb, which can handle 2s lipo voltage, so you don't need a BEC or regulator if you are running on 2s (assuming your servo & transponder can take it).