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Old 11-25-2021, 11:58 AM
steve mvm is offline
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MKS-HV777A+ on 6 volts

I wish to run MKS-HV777A+ on 6 volts which the servo instructions say can be done but at a lower speed and less torque.

Has anyone done this and was there a problem?
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Old 11-25-2021, 12:21 PM
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they will work fine. I am assuming that you are using a LiFe pack, which are 6.6v.
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Old 12-01-2021, 08:48 PM
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big servo loves higher volts but should be fine. why 6 V ?
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Old 12-04-2021, 08:06 PM
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big servo loves higher volts but should be fine. why 6 V

Not a real fan of lipo batteries outside of an all-electric plane but am considering.
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Old 12-06-2021, 09:49 PM
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been running 2S Lipo for years with all the HV servo brands. anything 30cc or more should be using the HV's
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Old 12-06-2021, 10:44 PM
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Been using LiFe batteries with HV servos for years just because A123 batteries are my choice for safety, long life and a host of other reasons. I rarely need that last bit of performance that using LiPos would add.
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Old 12-06-2021, 10:46 PM
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As mentioned the servos will work fine, albeit not at optimal speeds or torque.

I'm also a user of LiPo's in some of my planes, particularly and obviously the systems that are compatible, as I want every bit of power and speed I can get. It's why we pay the bucks for this stuff.

A good LiFe is also fine, but I encourage you to study up on current LiPo's ... particularly 2S packs specifically engineered and tested for receiver/servo use. There's many mainstream companies offering them.
I do remove them from my planes for charging, because yeah I like to be safe too, but gosh dang I get great service from them in my 100cc planes, and the way I set my planes up it's a simple velcro strap to remove/install them.

I also use LiOn's and LiFe's for a few different reasons, but LiPo's definitely have thier place in my fleet.
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Old 12-06-2021, 11:47 PM
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Quote:
Originally Posted by DGrant View Post
As mentioned the servos will work fine, albeit not at optimal speeds or torque.

I'm also a user of LiPo's in some of my planes, particularly and obviously the systems that are compatible, as I want every bit of power and speed I can get. It's why we pay the bucks for this stuff.

A good LiFe is also fine, but I encourage you to study up on current LiPo's ... particularly 2S packs specifically engineered and tested for receiver/servo use. There's many mainstream companies offering them.
I do remove them from my planes for charging, because yeah I like to be safe too, but gosh dang I get great service from them in my 100cc planes, and the way I set my planes up it's a simple velcro strap to remove/install them.

I also use LiOn's and LiFe's for a few different reasons, but LiPo's definitely have thier place in my fleet.
If only LiPo capacity and capable batteries came in metal cans, I'd be right there with you. LiOn batteries are getting close but not there yet. Part of my reasoning comes from the thoughts of one of my best friends having his house gutted by fire last year.
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Old 12-07-2021, 08:38 AM
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Quote:
Originally Posted by airboss/oc View Post
. anything 30cc or more should be using the HV's
Check the specs of that servo specifically. There are lots of servos that provide plenty of torque/speed on 6V for 30cc planes.
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Old 12-07-2021, 09:26 AM
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Originally Posted by jwilliams View Post
Check the specs of that servo specifically. There are lots of servos that provide plenty of torque/speed on 6V for 30cc planes.
+1
The center screw on MKS is M2.5, which is a deal breaker for me.
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Old 12-07-2021, 11:18 AM
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Originally Posted by Truckracer View Post
If only LiPo capacity and capable batteries came in metal cans, I'd be right there with you. LiOn batteries are getting close but not there yet. Part of my reasoning comes from the thoughts of one of my best friends having his house gutted by fire last year.
Sorry about your friends home. Yeah that stuff raises awareness and considerations for sure. We have to proceed in this hobby at our own comfort levels for many reasons, and all are valid, and some more personal.

In any and every case, we all should study every component we own, and take notes(literally), and weigh our odds with our own beliefs and experience. I too hope everyone is safe above all.

It sounds like the original question was answered, all good, and we learned.
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