Ebec
 

Can anybody tell me what a BEC does and how it works. Also, why is it better that the one that comes with the 20150 Brushless Car Controller.

The one in the car controller itself cannot handle the high juice of the batts that we put into it. So, the ubec replaces that componet to handle the juice.

Why would they make 20150 that can handle 20 cells if it can't handle it?

The controller can, but the bec can't. It states the rating on what you can run through the controller.

Well the BEC that comes with it according to the web site is 3amps.

What can the EBEC handle.

By the way, what the heck does it do anyway?

It controls the juice that goes to your rx i believe, don't quote me on that. The ubec can handle 40 input volts, and will allow 6v going to the rx straight from your batts, bypassing the internal bec(which cannot handle 40volts), the ubec has a higher rating to handle higher voltage from your batts. The internal bec just cannot handle the volts is all. But it's not that the controller cannot handle it, just the bec...

A BEC is a Battery Eliminating Circuit, meaning you don't need seperate batteries to feed the receiver and servo's on your vehicle.

it's a 5 or 6V DC coming from either a speedcontroller (either brushed or brushless), meant to feed the receiver.

yeah, what he said! :)

see, not all my posts are pointless...

Too funny! I never thought they were pointless, always informative!! IMO

Another thread gone up in smoke.. LOL

Serum what is your take on the factory 20150 speed controller.

Speed controller is nice, internal bec is good up to 12 cells.

You know what, I didn't get the lipos yet and I am using two 6 packs in series. Works great without the bec but when I get the lipos I need to put in the EBEC. Already have it from Mike.

Still have to learn how to set it up though.

Very simple to set it up. when going lipo, you'll also needa cut off, unless the controller has one built in. The ubec should have directions with it???

There are some schematics going on in this forum. there is one included with the ubec as well.

It's a Ubec bytheway

on 12 cells the internal bec of the 20150 is more than fine. I used it on my maxx with 14 cells and the internel bec..(not recommended though) but it works.

Ok, sorry to bother you but what is a cutoff? Is it a On/Off switch. Also, I was told not to use an on/off switch because if you switch it off there is still juice comming from the batteries and if I get the lipos it will kill them and waste a lot of money.

Very true. An lvc is a cut off for the lipos so they don't get to far below their voltage. LVC= Low voltage cutoff. It will automitically cut the power so the lipos don't over discharge

Ok. Now that we know that, does the EBEC come with one or if not where do I get one.

And still isn't it better to just unplug the batteries.

ebec or ubec?

The one the Mike @ RC-Monster sells. External BEC/UBEC.

Well, yes, but the LVC shuts off when the cells reach a certain level. You'd have to know what your battery voltage is if you did it manually. By the time you notice a substantial loss in power, they could be discharged too far. The discharge curve of Lithium is pretty sharp near the end.

Also, a LVC doesn't cut power to the batteries (at least none I've seen do), it interrupts the throttle channel and sends a "stop" signal to the ESC when the batts get low. Most, if not all, ESCs still draw some power when plugged in even though the ESC is off. So it is ALWAYS recommneded to unplug the batteries.

Does my UBEC have the low voltage cutoff that you are talking about?

No, you need a seperate LVC, such as the liposhield from dimensionengineering