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HelicopterRadio - Servo - Gyro - Gov - Batt › JR 8917hv servos at regulated 8.4volts ?
02-03-2012 12:34 AM  6 years agoPost 1
KA0007

rrNovice

Johnston, RI USA

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Im looking to get an answer from a JR rep/expert flyer and or from anyone else who has expert knowledge in these HV servos. A lot of guys are running these JR 8917hv or other hv servos on 2s lipos which have 8.4v fully charged (which they are designed to run on) but Horizon Hobby's tech support is telling me that i can't run them at 8.4v regulated, or i will burn out the servo motor. I do not beleave that they will handle 8.4v un-regulated from a 2s lipo but will burn out when regulated at 8.4v. I am using a Western Robotics Hercules Super BEC with a switchable voltage of 5.3v, 6v, 8.4v, or 9v. If Western Robotics has one of the best bec on the market, why don't they have an option of 7.4v on the bec if all the JR techs are saying to run at 7.4v max regulated? IT JUST DOES NOT MAKE SENSE TO ME !!

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02-03-2012 01:44 PM  6 years agoPost 2
Jeff polisena

rrElite Veteran

westpalmbeachflorida usa

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Reps say this because of warranty ,I've been running on in regulated 2S since they came out and have yet to lose one to power failure .

I stole it ,flew it and gave it back ;)

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02-03-2012 04:18 PM  6 years agoPost 3
Richardmid1

rrProfessor

Leeds, England

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Running them on 8.4v regulated i.e. constantly is different from running just straight 2s li-po. Your running 1v higher on regulated 8.4v. I think they would be fine however.

60% of the time, it works every time!

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02-03-2012 09:58 PM  6 years agoPost 4
KA0007

rrNovice

Johnston, RI USA

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Thanks guys
Anyone else? I also heard that these servos are rated at a higher voltage from JR overseas! True or false?

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HelicopterRadio - Servo - Gyro - Gov - Batt › JR 8917hv servos at regulated 8.4volts ?
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