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HelicopterFlybarless Rotor Head SystemsV-Bar › Vbar arming - not arming intermittantly
02-05-2017 11:25 PM  9 months agoPost 1
Rudeboy

rrNovice

Belgium

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I'm scratching my head at this point.
When I plug a hobbyking 3.6Ah 2S lipo in my vbar arms every time.
When I plug in a GensAce 4.0Ah 2S lipo it only arms maybe 1 out of 10 times. The other 9 times the led on my receiver lights a fraction of a second and the servos twitch briefly, then the whole thing goes dead.
When it does arm, the servos are strong, so it is apparently not so that the lipo or connections are too weak somehow.
When I plug the GensAce lipo in my charger, I can push 6A into it without problems.

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02-06-2017 12:04 AM  9 months agoPost 2
Heli Fanatix

rrVeteran

Fountain Valley, CA

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How old is your Gens Ace packs?
- Could it be possible it's old?
- servos can pull more than 12 amps
- if they are coreless servos, amperage are higher when they initialize or move from center
- try centering the collective during initialization to see what happens

* Is this a Mini V Bar?

- Scott

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02-06-2017 12:24 AM  9 months agoPost 3
Rudeboy

rrNovice

Belgium

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The GensAce pack is about 2 years old I think, but never really used. It charges and discharges fine also, but my charger only manages a 1A discharge rate.

The servos are 4x RJX FS-0521HV and one RJX FS-0521THV for the tail.

It's a full size silverline Vbar.

Somehow it must be overloading the battery at startup. Must be a bad connection in that battery or something.
I urgently need a new multimeter...that one is dead also

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02-06-2017 03:42 AM  9 months agoPost 4
Heli Fanatix

rrVeteran

Fountain Valley, CA

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Those servos will pull over 10A for all 4.

The power bus on the full size is more robust. it's safe to say that its the pack. using the new turnigy pack eliminates your issue ... so that pretty much answers our dilemma

- Scott

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