BEC or not...

[BrianP]

This is my power package: MRC PRO
Mongoose 1/18 Crawler Mini BL System 18.5T
HS-645MG
Blue Lipo 2-Cell 800mah 7.4v 2S1P 20C Battery

I have everything but servo. (Servo on the way)



Should I add A BEC?

 

[bikerj08]

most would probably say yes, I am running my hitec 5645 directly off my 2s lipo without any problems thus far though. My servo isn't even high voltage but it really does not get that warm, sure I will smoke it at some point. My 2 cents.

 

[Charlie-III]

Depending on your ESC & servo, ~200oz is about the max without a BEC before you run into issues.
In general, other than "for fun" rigs/scalers, I say spring for an external BEC (unless you're running a BRXL ESC).

 

[neiloid1]

Lots of people don't run a BEC with the Mongoose but I would always run a CC BEC as it's a few dollars of insurance for your ESC, has a small footprint, is light and programable - what's not to like?

 

[jeepsohigh]

I would always run a CC BEC as it's a few dollars of insurance for your ESC, has a small footprint, is light and programable - what's not to like?

^^ this is my opinion exactly. I run a BEC on all of my rigs"thumbsup"

 

[sickpuppy1]

Another thing to consider is most esc only deliver 5.5 to 5.8 volts to the servo. SO you lose just a bit of power. With the CC BEC you can set the output voltage. mine is set to 6.1 volts. My servo never gets warm and it is a 200 oz +/- (maybe 205 with voltage bump! oohhhhhh)

 

[scteggy]

the bec made a huge difference in my rig...now i have them in all of my scalers and crawlers...servo works awesome with it!

 

[BrianP]

Lots of people don't run a BEC with the Mongoose but I would always run a CC BEC as it's a few dollars of insurance for your ESC, has a small footprint, is light and programable - what's not to like?

I have one on order. (CC BEC) Thank you guys for helping me decide.
Now to figure out the wiring part. Back to searching...

 

[snohiker]

is there a pert number for this bec and a good spot to get one

 

[BrianP]

is there a pert number for this bec and a good spot to get one

Most of the RC vendors carry them. I ordered mine through Amazon.com
$19.38

 

[Noahrob]

After reading the stickies and many many posts, I ended up going pretty vanilla, a hired servo and bec...I found both on amazon, but got the base plate elsewhere. As for wiring, there is a real easy to follow picture on the castle creations website....

 

[Snipervision]

Anyone use the hobbyking 5a?
HobbyKing R/C Hobby Store : Turnigy 5A (8-26v) SBEC for Lipo

 

[Charlie-III]

Anyone use the hobbyking 5a?
HobbyKing R/C Hobby Store : Turnigy 5A (8-26v) SBEC for Lipo

Not I, it's not much more than some ESC's. When I do an external BEC, I spring for the ~$22 for a CC 10A BEC."thumbsup"

 

[sickpuppy1]

Yep, I wouldnt do a 5 amp it your going to a gutsy servo. Do the 10amp CC.