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-   RC Radios, Transmitters, Receivers, Servos, gyros (http://www.rcuniverse.com/forum/rc-radios-transmitters-receivers-servos-gyros-157/)
-   -   Hitec HS-225MG and 6.6v A123 (http://www.rcuniverse.com/forum/rc-radios-transmitters-receivers-servos-gyros-157/11341627-hitec-hs-225mg-6-6v-a123.html)

Neddy191 12-23-2012 10:03 AM

Hitec HS-225MG and 6.6v A123
 
Hi, I've searched a little and found some opinions about this but I felt I'd ask again for more current opinions.

I'm planning on using a HS-225MG for the throttle on the 1/4 scale cub I'm building. I'm looking at going with a 6.6v A123 for my flight battery and was wondering if I should worry about any problems since they're only rated through 6.0v. I don't really want to put a reg in this plane.

A.T. 12-23-2012 11:00 AM

RE: Hitec HS-225MG and 6.6v A123
 

Quote:

ORIGINAL: Neddy191 <span style="font-size: smaller;">Hi, I've searched a little and found some opinions about this but I felt I'd ask again for more current opinions.
I'm planning on using a HS-225MG for the throttle on the 1/4 scale cub I'm building. I'm looking at going with a 6.6v A123 for my flight battery and was wondering if I should worry about any problems since they're only rated through 6.0v. I don't really want to put a reg in this plane. </span>
. Servo - Operating Voltage Range - (Hitec) usuage with NiMH, Lipol &amp; A123 batteries.
"20Jan2012:
A123 Update
"Any Hitec standard size servo can be used with unregulated A123's. - Mike."

Not withstanding the higher the voltage, the higher the servo speed and shorter overall life of any servo.

Much more information available under sub section:
"Servo - Alterations, Calculators, Databases, Leads, Repairs, Convert to an ESC or winch &amp; FAQ."
below
"Radio Systems, Accessories, Alterations and FAQ" at
Alan's Hobby, Model &amp; RC FAQ Web Links

Alan T.


jkeze 12-23-2012 03:56 PM

RE: Hitec HS-225MG and 6.6v A123
 
Unless they changed something I would not I failed two right off charge with 5 cell nicads afew years agp. Other club members have done the same

My 2cents

Giant_Scale_Gasser 12-25-2012 04:52 AM

RE: Hitec HS-225MG and 6.6v A123
 

Quote:

ORIGINAL: Neddy191

Hi, I've searched a little and found some opinions about this but I felt I'd ask again for more current opinions.

I'm planning on using a HS-225MG for the throttle on the 1/4 scale cub I'm building. I'm looking at going with a 6.6v A123 for my flight battery and was wondering if I should worry about any problems since they're only rated through 6.0v. I don't really want to put a reg in this plane.
I run all my Hitecs (probably 60 of them in service between 12 airplanes I fly) on 6.6 LiFe chemistry. I have 225BB &amp; 225MG running every weekend on 6.6v with not a single issue. Juts my 2 cents.


BarracudaHockey 12-25-2012 05:27 AM

RE: Hitec HS-225MG and 6.6v A123
 
A "6v" rating means its good for 5 cell NiCad/NiMH

It will be fine on A123

JPMacG 12-25-2012 11:08 PM

RE: Hitec HS-225MG and 6.6v A123
 
I have now had 4 out of 4 HS225MGs fail. My advice is don't use them on a critical control surface. Throttle is OK. I don't know for sure that my failures were related to voltage, but I was using a 5 cell NiMH pack in each case.

A.T. 12-25-2012 11:47 PM

RE: Hitec HS-225MG and 6.6v A123
 

Quote:

<span style="font-size: smaller;">ORIGINAL: JPMacG I have now had 4 out of 4 HS225MGs fail. My advice is don't use them on a critical control surface.
Throttle is OK. I don't know for sure that my failures were related to voltage, but I was using a 5 cell NiMH pack in each case</span>
Unusual to have so many stop working if not age related, the following might assist with diagnosis/repair:
. Servo - Burnout. Cause &amp; Prevention
. Servo - FAQ : Metal Gear Servos - DIY Repair &amp; Extend MG Servo Gear Life

More information available under sub sections
"Glitches &amp; Jitter in Receiver, Servo &amp; ESC - Causes and Cures"
"Servo - Alterations, Calculators, Databases, Leads, Repairs, Convert to an ESC or winch &amp; FAQ."
below
"Radio Systems, Accessories, Alterations and FAQ" at
Alan's Hobby, Model &amp; RC FAQ Web Links

Alan T.


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