fatshark power switch

FatShark Power Switch : On/Off Switch for your Fatsharks

In Build, Quick Tips by Mike Tseng18 Comments

FatShark Dominator Power Switch Mod

I love my FatShark Dominator V3.  One thing I don’t like about them is fumbling around to plug in the power cable.  I’ve always wanted to add a Fatshark power switch but never got around to doing it until now.  Adding a power switch makes them so much more enjoyable to use.

fatshark power switchParts used in this build

*Disclaimer: Do this mod at your own risk.  We are not responsible for any damage done to your equipment.

FatShark Power Switch Modification

Open the cover.  Remove the two screws and loosen the center screw.  Remove the power board module and unplug the wire harness.

Use a 5/8″ drill bit to drill a hole in the cover.  On the inside of the cover there is a circle injection mark.  Use that circle to mark where to drill.  If you put it dead center, the switch will line up perfectly inside the goggles.

fatshark power switch

Cut the tab on the back of the plug.

fatshark power switch

Cut three wire lengths

  1. Red – 40mm
  2. Black – 57mm
  3. Green – 58mm

fatshark power switch

Trim the tabs on the back of the button so it will fit inside the goggles.  Put the switch through the hole of the cover.

fatshark power switch

Solder up the wires like this.  This wiring diagram is setup to have the LED on the power switch to turn on only when the power is on.  This schematic is for this power button.

fatshark power switch

Note the green wire is soldered to the center tab and the bottom tab.

fatshark power switch

fatshark power switchfatshark power switch

Put everything back in the goggles in reverse order and you’re done.  Now you can leave your goggle battery plugged in and it will only turn on when you hit the Fatshark power switch.  The LED will be lit when the power is on.  Go fly!

fatshark power switch

If you found this post helpful, it would be super cool if you purchased the components from my store or purchase items from my Amazon links.  These posts are expensive and take a loooong time to make so the purchases make it possible for me to keep making them.  Thanks in advance, I greatly appreciate it 🙂



  1. Great modification, I did it in about an hour, I wasn’t able to find a blue switch on Amazon so I chose the green one which wires a little different, I first wired it by the same locations you showed and no power to the switch, I then switched the location of the red wire to the other location and it worked. I think you have to look for the small markings on the switch that have a “C” on it.

    Thanks Again!

  2. Kind of off topic but I have been flying FPV with an older Headplay and then for the last couple years the Fatshark Attitude V2 (3?) Anyway, a set of Dominators with all these extra antenna’s would represent a BIG investment! So I wonder if the quality of video and reception would be any better, or better enough to justify that kind of expense… Darn, I could have cared less until I saw your mods Mike, but now I have Dominator envy…
    Anyone with experience care to comment?

    1. Author

      sorry i’m still rocking the standard v3 so I don’t know if it will work with HD3.

    2. Used motor wire which I think is 22awg and it worked on HD3…

      Thanks Mike


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