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› western robotics hercules super bec
08-31-2012 03:15 AM  5 years agoPost 1
Scott1115

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Greenwich, CT

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I've been using this BEC for the past three months with a 2S NRG 2500mAh LiPo. I just rad the instructions and it says this:

"Wide input voltage range from 9V to 58V(3-14 LiPo Cells)"

It says 3-14cells, and obviously I've been using 2 cells. Any harm in continuing as is?

Compass 7HV, Trex 550E
RCRCC

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08-31-2012 03:26 AM  5 years agoPost 2
Heli 770

rrProfessor

USA.

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What is your output voltage set at?

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08-31-2012 03:29 AM  5 years agoPost 3
Scott1115

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Greenwich, CT

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6V

Compass 7HV, Trex 550E
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08-31-2012 03:42 AM  5 years agoPost 4
Heli 770

rrProfessor

USA.

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I think the reason for the 3S-14S is to keep the 10A output rating.

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08-31-2012 05:11 AM  5 years agoPost 5
Dr.Ben

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Richmond, VA, USA

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WR is the final word on your question, but conceptually, for optimum performance, there needs to be voltage headroom between the input voltage to the BEC and the output voltage to the system. Thus 2S input is less ideal for 6V output than it would be for 5V.

Ben Minor

Team Synergy Team Futaba Team Kontronik USA
Progressive RC

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08-31-2012 05:28 AM  5 years agoPost 6
Scott1115

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Greenwich, CT

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I have three options..

1 - pick up power from flight packs = not what I want to do as I've been known to run them down to 2%/dead.
2 - buy a CC BEC pro = it's rated for 2S to 6S.
3 - buy a few 3S packs and keep the BEC I have.

What do you think I should do?

Compass 7HV, Trex 550E
RCRCC

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08-31-2012 05:37 AM  5 years agoPost 7
Dr.Ben

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Richmond, VA, USA

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Even if you were to run the main pack(s) down to 2V per cell, there is still plenty of voltage to run the radio.

You already have arguably the finest external HV BEC made, so I would not be inclined to go to another brand.

The third option is the best of the three listed. 3S packs are not expensive as you know.

Ben Minor

Team Synergy Team Futaba Team Kontronik USA
Progressive RC

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08-31-2012 05:42 AM  5 years agoPost 8
Scott1115

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Greenwich, CT

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As usual, Gens Ace 3S packs are out of stock. The 'search' begins!

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08-31-2012 04:16 PM  5 years agoPost 9
rcflyerheli

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Granbury, TX USA

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I just went to the WR website, and they are good to use at 2s, which is a good thing, as I have been using one off a 2s lipo for over a year now on my 700.

Goblin 700, Trex 700DFC, Gaui X7, Logo 690SX, Logo 600SX; Trex 470 Trex 500
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08-31-2012 04:24 PM  5 years agoPost 10
Heli 770

rrProfessor

USA.

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This is the only.....

one that I know of that WR says to use 2S with.
http://www.western-robotics.com/hercules-linear_hp.html

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08-31-2012 05:56 PM  5 years agoPost 11
rcflyerheli

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Granbury, TX USA

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I do see what you are referring to, but my Hercules Super BEC is running fine on 2s lipo, although after reading, I might just take out of the heli, and just run the 2s straight to the Vbar.

Actually, I just got lazy on the build, as I didn't have any heavy duty servo extensions to wire in parallel to a Deans plug, and I already had the Hercules taped into the heli, so I just left it. I guess it is just passing the voltage and current straight through itself.

Goblin 700, Trex 700DFC, Gaui X7, Logo 690SX, Logo 600SX; Trex 470 Trex 500
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09-04-2012 01:03 AM  5 years agoPost 12
JOLT

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Baltimore, MD

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It's a great product. I went with running it direct from 12S (2 6S Packs). Some run it from 1 of the 2 packs, but I didn't want one pack losing more than the other. I soldered it directly to the positive/negative from the ESC leads.

It was the most reliable product I have ever had in the hobby. Something that actually works exactly how it is advertised can be hard to find these days.

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09-04-2012 01:04 AM  5 years agoPost 13
Scott1115

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Greenwich, CT

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I just bought a pair of 3S 2200 liPo's

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