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[TheLongBuild]

Hi
Just wondered if any one knows what the maximum voltage a general servo can take before burning out.

[C-3PO]

caveat emptor

4.8v (4 x 1.2v rechargeable cells) - 6.0v (4 x 1.5v non rechargeable cells)

C-3PO

[TheLongBuild]

caveat emptor

4.8v (4 x 1.2v rechargeable cells) - 6.0v (4 x 1.5v non rechargeable cells)

C-3PO

Yes that is the power generally used but can they take more without damage ?.ie 9 -12

[Tug Fanatic]

I think that you are asking a question that is impossible to answer. This is a product made by dozens of manufacturers, over dozens of different types/sizes and dozens of years and which vary in price enormously.

The only question that I think you can really ask is which servos has anybody used at more than 6v with success.

In my case that would be none.

[DaveM]

There are such things as high-voltage servos (e.g. some of the Savox range) but even those are rated only to 7.4v. Is your question simply academic or have you some practical application for such a mythical beast?
DaveM

[David Shaw]

Standard servos are nominal rated at 4.8V to 6.0V.
HV servos are rated at 6.0V to 7.2V, that can work on 2s lipo battery. A fully charged lipo has a voltage of 8.4 volts and the HV servos can operate at this voltage.
There are very few HV servo that are rated at higher voltage, but are costly.
If your concern is that you are using a higher voltage battery, then a simple answer to your problem is a voltage step down regulator.

[coch y bonddu]

This one will work on 14.8 volts


https://www.servoshop.co.uk/index.php?pid=JP2222360&area=SERVO


If you have £389.99 to spare...




ALl serovs it seem work on 6v......but if you was to use  a higher voltage how are you going to get the power to the servo as it has to be esc controlled,let lone getr the voltage  down those rather THIN CABLES !!!!!!!!!!!!!!!!!!


Dave

[TheLongBuild]

Wow £389, thought you were joking but googled and found same for 420 !!!.
More a work hut discussion today, possibly with the thought of using a 12v and not using a voltage reducer. (NOT ME)
Thanks for the input..

[tsenecal]

voltage regulators that are adjustable (33v -> 3.3v) are available from chinese sources via ebay for as little as 0.99 US...  there is no need to go without one.

[roycv]

Hi back in the days when I used to repair my own servos and I seem to remember using the Fleet electronics kit, those chips were rated at 6.5 volts.  So unless you know better 6volts is a safe limit.  I think I still have a coiple of those chips!
Regards
 Roy

[malcolmfrary]

Servos generally plug into the radio and get their power from it.  Radios generally don't like any higher voltage than they are rated for.  Any RC equipment intended for more than the old "standard" of 6 volts (2 lead acid cell, 4 dry cells or 5 NiCads) would generally shout it from the rooftops as being a unique selling point.  If the capability of high voltage isn't shouted, it doesn't happen.
Back when I was reading spec sheets for the likes of servo chips, the ones that I read about had a maximum voltage of 7.5. I expect that that is still mostly true.  There are some plug-ins that run on programmable chips whith an absolute max of 5 volts, and these usually have this mentioned in the instructions.
Nowadays there are very compact, cheap, reliable and efficient switching voltage regulators capable of supplying seveal amps that are little more than a modest lump in the middle of a lead.  Very suitable for powering a small model that needs 5 volts to work the electronics from, say, a 2 cell LiPo at a nominal 7.4 volts which might be rather more when freshly charged.