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11-19-2018 05:14 PM  28 days agoPost 1
Scorpion

rrApprentice

Socal USA

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how to add a cc bec 2.0 to my gasser helicopter to increase the volts on my 4.8 futaba servos to 5.5 or 6.0v with a 2s 7.4v lipo receiver battery

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11-19-2018 05:46 PM  28 days agoPost 2
Heli Fanatix

rrVeteran

Fountain Valley, CA

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It’s ideal to use a LIFE pack and run straight without BEC Pro.
- reduces a connection point
- serves the purpose

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11-19-2018 05:47 PM  28 days agoPost 3
rcflyerheli

rrKey Veteran

Granbury, TX USA

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You would need to program the output voltage using the Castle Link software (free download from castle) but you would need the physical Castle Link connector to connect to your computer. Run the program, attach the BEC to the castle link, and power up the BEC with the 2s RX battery, then set the output voltage to whatever you need per your OP.

Don't forget to click on the box to save the setting to the BEC. Unplug the battery, and disconnect from the computer. Now plug the BEC output line(s) to your FBL unit and plug the BEC input into the 2s lipo. If you have a voltmeter, I'd recommend checking the BEC output prior to installing on the FBL unit.

Logo 700, Specter 700, Goblin 700, Trex 700DFC, Gaui X7, Logo 690SX, Logo 600SX; Trex 470 Trex 500
Amain Team Rep

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11-19-2018 06:49 PM  28 days agoPost 4
Scorpion

rrApprentice

Socal USA

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i forgot to mention the Futaba heavy duty switch, do i pair the bec on the input leads that go to the battery?

i have 3 devices....2s lipo, heavy duty switch and cc bec 2.0...i have no clue on how to wire all these 3 together.

thanks for your input in advance; i really appreciate it.

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11-19-2018 07:04 PM  28 days agoPost 5
Scorpion

rrApprentice

Socal USA

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the Futaba 9252's only handle 4.8 volts that's why i want to add the bec....according to a previous post I read here, they could handle 6.0 volts with no problem.

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11-19-2018 07:13 PM  28 days agoPost 6
Heli_Splatter

rrElite Veteran

USA

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I looked the servo up and it clearly says that the servo should only be operated at 4.8volts.

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11-19-2018 08:23 PM  27 days agoPost 7
Scorpion

rrApprentice

Socal USA

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you are correct on that according to futaba servo specs; but i seen other pilots here stating that they could handle 6.0 volts without any issues.

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11-19-2018 09:35 PM  27 days agoPost 8
Heli Fanatix

rrVeteran

Fountain Valley, CA

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4.8v is the nominal voltage back in the NiCad era .. than NiMd .. now LIFE / Lipo genetion.

Back in the NiCad era .. a fully charge NiCad 4 cell is around 5.8v fresh off the charger and it’s not in common for modelers to use a NiCad 5 cell setup. So it’s safe to say those 4.8v rated servos can tolerate a wide voltage range until we get down to 4.8v ~ 5.8v nominal operating range.

We like to be in the 5.6v operating nominal range; Thus a LIFE is very pragmatic.

I’ve been in the hobby since 91’ and big user of Futaba/JR 4.8v rated Servo .. even till this day.

After all this information to raise your awareness.. you can make a decision if you want to go with:
Battery > Switch > BEC > FBL
- Uncertain wire gauge & switch rating
- it’s like making a long wire with multiple wires

versus

Battery > FBL
- use a Dean / EC3 with peace of mind
- single wire vs multiple wires

“Simplicity is the Ultimate sophistication“

Up to you sir

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11-20-2018 03:12 PM  27 days agoPost 9
Scorpion

rrApprentice

Socal USA

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Heli fanatix...thank you for your valuable info, this is what i was looking for in this hobby that seems to be fading away more and more after the drone invasion.

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11-20-2018 05:00 PM  27 days agoPost 10
Heli Fanatix

rrVeteran

Fountain Valley, CA

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It does appear that way, however look at how nitro is making a resurgence... the same could be for RC Heli.
Hopefully one day people value a challenge and thrill of the single rotor when the dust settle.

If not, do it for ourselves. We’ve stock piled enough and planned thoroughly to be self reliant in case there were no more RC Heli manufacturers, parts, forums and etc. The pilots that aren’t around perhaps didn’t know what they “wanted” and never “wanted it bad enough!” That is why so many come and go, b/c they were just interested. If we were committed ... it’s “UNTIL”

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