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HomeAircraftHelicopterHelicopter Main Discussion › Experimenting with high voltage on non-rated servos
01-17-2010 12:55 AM  8 years agoPost 1
flying buffalo


Darwin, NT, Australia

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Hi all, who has experimented with high voltage (7.4/2s) running to servos that are not rated (not advertised)for this voltage.
For example has anyone tried the Hitec HB6965 servos on high voltage?
What other servos have people tried.......please list any good and bad results.......cheers

Yesterday was history...tomorrow is mystery

01-17-2010 04:43 AM  8 years agoPost 2
Justin Stuart (RIP)


Plano, Texas

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I've heard of a lot of people using 8717s on 2S, but not Hitec servos.

Avant RC
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Kontronik Drives

01-17-2010 07:18 AM  8 years agoPost 3



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i dont compromise things, i ve seen lot if ppl run straight 2s on jr8717 or jr8915, align DS610 without problem, but the use to fry their servo after crash either dead servo or strip metal gear, anyway i wont do that coz u will be frust more if u need to reopen the whole frame just to replace one dead servo, anyway just follow the instruction says run at 6v, for me .08s or .10s is already feel damn connected
All u need is high reesolution TX

Trex 600,700 AND 450, GY611, GY401, OS5H, OS91HZ, MGP, HS65HB, Scorpion 2221-8,

01-17-2010 08:04 AM  8 years agoPost 4


Edson, Alberta, Canada

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Know of several running bls 451 servos long time at 8.4volts no issues.

...Once upon a time there were Nitros, flybars and frequency pins...

01-17-2010 08:00 PM  8 years agoPost 5
Scott Anderson


Enterprise, Al

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i had an old futaba 3001 i used for mock-up , just for grins i put my 12v starter battery on it still worked but got hot.

Synergy R/C Helicopter Field Representative

01-17-2010 08:11 PM  8 years agoPost 6


La Vista, NE.

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I have a Hitec 6965 on the tail of my Trex-700 and have about 5 gallons running is on straight LiFePO4 (A123 type) pack. This is about 1V less than LiPo. Comes off the charger at 7.4V and drops down to 6.6V for most of the flight. I know it's been above 7V after several of the flights (first flight after a full charge). I also have a set of 6975's on the swash of my Vision that has about a year of flying on straight LiFe packs. Both of theses have HS525 for throttle. I wasn't comfortable pushing them to straight LiPo but LiFe pack voltage doesn't concern me for Hitec servos.

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