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MORIDE
10-03-2014, 08:41 PM
I just ordered a new Seaking 120 amp esc, It is replacing an old Seaking V1 or 2 120 amp esc. My question is on the old esc I ran a separate battery pack and did not use the bec, I run 5S should I do the same on the V3 esc or is it safe to use the BEC?

Luck as a Constant
10-03-2014, 09:51 PM
I used the bec on the v1 esc on 5s. Not sure why you ran a pack to begin with. Bec is fine to use


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MORIDE
10-03-2014, 11:56 PM
there are lots of old post regarding bypassing the ESC BEC if using any more than 4S on the older ESC's.

Luck as a Constant
10-03-2014, 11:59 PM
i dunno man, I've seen those same posts... i always used the built in bec without ANY issues

ray schrauwen
10-04-2014, 12:32 PM
With the new HW esc's the BEC is a UBEC in the 120 and 180 versions and are pretty good to use but, the 60 amp and 30 amp are Linear BEC that I would not use.

To each his own, sometimes I run a RX pack and sometimes I don't. Spec boats no, modded boats yes.

785boats
10-04-2014, 03:13 PM
I've always used the BEC even on 6s. That's what they're there for.
Those old posts mainly referred to ESC's with linear regulators . Most ESC's these days use the Switching Mode regulators which can switch higher voltages with much smaller losses.

Ray.
Just as a matter of interest. Where did you see that their smaller ESC's still used the linear mode regulators? I assumed that they used switch mode too. Although I've never used one of those ESC's.
Cheers.
Paul.

ray schrauwen
10-04-2014, 04:56 PM
It's right in the specs http://www.offshoreelectrics.com/proddetail.php?prod=ker-seaking-30a-v3&cat=123


Specification

Continuous Current: 30A
Peak Current: 180A
Input: 2-3S Lipo
BEC Type: Linear Mode
BEC Output: 6V/1A

Should be fine though; I've got a 30amp unit to repair a boat that did not need it so, I'll use it for when I ever put my HK podracer together...

Spartanator
10-04-2014, 05:41 PM
I think that if you use a external BEC it will provide cooler temps... I think... My SK180V3 runs ok with an external BEC. Up to you. If it was up to me then I would put a cap pack and BEC on it to be extra safe. Also depends what your using it in.