What is a BEC and what do they do in the RC hobby?

Excellent video! I really appreciate how you spelled everything out nicely in a step by step fashion without skipping or glancing over anything.

First time I have heard anyone explain this where I actually understand it! Great job :)

I'm new to the RC hobby world and I must say, your explanation was fantastic. Very clear explanation, thank you so much !!!

Very informative! Finally after about 10 years and giving up, it's clear as day. It was like a mental block in my brain has been removed.

Not long ago, I had a strong servo that was pulling more current than the in-built ESC-BEC could deliver, causing the Rx to go into failsafe mode. Since then, I use a dedicated BEC or a separate receiver/servo battery, as standard practice. You will amazed at how much current a large servo can pull, and how much better it will work with enough juice!

Just remember. If your BEC on your ESC can go up to 8.4v and you have an 8.4v high voltage servo you need to make sure your receiver can handle 8.4v. Your receiver may only be able to take 6.0v or 7.4v. You can only go as high as the lowest rating on an individual component, be it your receiver, servo and your ESC. The ESC is the power source for your receiver and servo. When programming your BEC check your servo rating AND your receiver rating and program your ESC’s BEC accordingly.

Enjoyed the video. I’ve watched several videos attempting to understand what a BEC. You did a better job than most in explaining what it is and the different types. My understanding is complete. Thanks

Wow Thanks! I was wondering what that little bulb was that came with my FMS 120A ESC…”a Glitch Buster!” Now I know! I converted my 6S Warbird to an 8S and the new ESC will give me more go. Thank you!

What oz. Per in. Of torque servo would you reccomend using a BEC for in an RC Crawler?

Love the rc juice videos they always impart a wealth of knowledge that really is useful to us rc enthusiasts.

Great video,put simply enough for me to have a much better understanding how they actually work an how to benefit from using one👍

Very clear and very appreciated. thank you.

****RESPECT = Great Presentation *

Sir I have a question.I have a Power hd 25kg servo and I ordered a hobbywing 1080 with programming card and a castle bec 10a with a default 5.1V. Do i need to buy the Castle link to program bec into 7v or Ill just program the esc with 7v servo option with its programming card without buying the castle link?

Very well explained! Good you talked about capacitors too. Thanks!

Thanks friend! I needed a refresher

Excellent video and very helpful, thanks RCJuice

First Hello, And THANK YOU.I have been flying for few years and never needed or took time to learn what the difference in BECs are ( U, S, or L.) How ever I did and do know what I BEC is and what it does. I had my daughter just ask what a SBEC was and went to search it and seen this video. I am Glad I did. Thank you for keeping people informed In the RC world and for the Videos. Knowledge is a wonderful thing for some one to have. Videos like this are so great for people just getting into the hobby / interested in what the hobbies are all about / or even some that may just need refreshing or info about something they heard and didn't remember or never heard so didn't know YET.. I just wanted to say thank you for videos like this. Great place to teach and learn.

Quick question. Need some help .. do the bec wires allways stay plugged into the ESC or do you unplug them after its callibarted .. just wondering because I only have one spot for either the 3 wire servo or that on my ESC/receiver. I'm a bit confused to be honest

Quick question, can a Glitch Buster be plugged into the Data/Bind port? I'm out of channels so just wondering if this can be done through bind port.