immersionrc rapid fire power mod

ImmersionRC rapidFIRE Power Mod

ImmersionRC rapidFIRE Power Mod

This post will be just the power mod for the older FatShark goggles.  I will have a full review on the ImmersionRC rapidFIRE module coming up once I get more time to use it.

The ImmersionRC rapidFIRE module needs more power than normal modules.  The newer Fatsharks like the AttitudeV4 and Dominator HDO can supply the correct voltage to use the rapidFIRE out of the box.  Just plug the module in your new goggles and you’re good to go.

For people who are using older Fatsharks like all the Dominators besides the HDO, you need to mod the goggles to supply the rapidFIRE the extra juice it needs.  There are three ways to do this:

  1. Use the supplied ribbon cable and module to do the mod.  Download the manual for instructions on this
  2. Send in the goggles to ImmersionRC to have the power mod done
  3. Do the power mod yourself

The actual mod is super simple.  The hardest part is taking the goggles apart to get to the component to do the mod.  Follow this tutorial and I’ll show you it’s super simple to do.  The video above is about 13 minutes long and that’s with me babbling about nonsense.  The actual mod start to finish only takes about 5 min.

Here’s a quick soldering tutorial if you are unsure of your soldering skills.

I’m using a soldering vise to hold the module in place while I solder.

Do the rapidFIRE Power Mod

I will be doing the mod on my Dominator v3 non-HD.  If you are interested in the power switch mod on my goggles, I have a full post on how to do that.

Remove the head strap from your goggles.

immersionrc rapid fire power mod

Remove the three philips head screws on the bottom of the goggles.

immersionrc rapid fire power mod

Use a small flat head screwdriver to unseat the 4 clips that holds the faceplate on.

immersionrc rapid fire power mod

There is a clip under where my right thumb is.  Press firmly here to unclip it and the whole shell will come off.

immersionrc rapid fire power mod

The module that needs the mod is on the left.  Slide that out of the bottom half of the goggles.  To remove the ribbon cable, slide the black clip back and the ribbon cable will come out easily.

immersionrc rapid fire power mod

The part circled in red labeled L1 is the part that needs to be modded.  Instructions from ImmersionRC say to remove this part and put a solder bridge across the two leads.  Unless you have a hot air rework station, removing a surface mount component is tricky.  You risk lifting or burning the pad.

immersionrc rapid fire power mod

A better way of doing this mod is simply putting a tiny jumper wire across the two leads.  Electricity flows in the path of least resistance.  The jumper wire essentially bypasses this component by shorting it.  The best part of doing it this way is that it’s completely reversible.

immersionrc rapid fire power mod

Once the mod has been done, just do everything in reverse to put the goggles back together.

To confirm the mod worked, plug in the rapidFIRE in the goggles and power it up.  Scroll to the “About” section in the menu and you should see “Low Pwr : No”

immersionrc rapid fire power mod

That’s it!  The mod is super simple to do once you know how to take the goggles apart.  I’m so excited to try this new ImmersionRC rapidFIRE module.  Check back soon for the full review with comparison videos!

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 🙂





14 responses to “ImmersionRC rapidFIRE Power Mod”

  1. SaGô Avatar

    as always, great tutorial! i look fwd to using my RapidFire though won’t be needing to do the power mod on my HDOs. sorry, i haven’t purchased in a while. my PROtons keep taking a beating crash after crash. haven’t even used the spare parts yet! great products, blog, and customer service, man!

    1. Mike Tseng Avatar
      Mike Tseng

      Yeah I’m excited to try them out also. How do you like your HDO? I’m not sure if i’m going to switch or not. I had some HD’s in the past and the image made me dizzy. I know, i’m old!

  2. Osborne Avatar

    Mike, can you make this rapidFIRE Power Mod as well as the power switch mod on the same FatShark google

    1. Mike Tseng Avatar
      Mike Tseng

      yes you can. the goggles here have the power switch added as well as the power mod.

  3. John Daniels Avatar
    John Daniels

    If I do the mod and say I want to use my true D instead would I have to reverse the mod so I can use my furious true D without damaging it or the goggles

    1. Mike Tseng Avatar
      Mike Tseng

      nope. i’ve used the rapidfire and true-d with the mod. No issues 🙂

  4. Jason Avatar

    Hey, awesome tutorial! Question though, do you know if this mod is able to be done on DomV2s? I opened mine up and don’t have an L1.

    1. Mike Tseng Avatar
      Mike Tseng

      Hmm, i’m sorry but i’ve never opened up a domv2. Just to be safe I’d contact immersionrc.

    2. Evan Avatar

      I have the Dom v2s. The L1 is on the opposite side of that board…BUT…that isn’t enough. You need to do the L10 as well which I was unable to find anywhere on these goggles after removing all the boards. I ended up just installing the power board and routing the ribbon cable on the inside of the goggles.

      1. Mike Tseng Avatar
        Mike Tseng

        really? i didn’t know on the v2 it was so different

  5. aaron Avatar

    Where can I get a 3D printed vise like the one I’m tbe video ????

    1. Mike Tseng Avatar
      Mike Tseng

      Hi Aaron, the vise is available here:


  6. Brian Miller Avatar
    Brian Miller

    Awesome article! Totes doing this this week. Not using a IRC Rapid Fire, but seen a few posts about Furious True D modules causing issues on the Dom v3. Being a proactive guy and future scalability rules, im going to do this anyway. Keep up the good work. Thumbs high!

  7. Shane A Saviers Avatar
    Shane A Saviers

    thanks for this.

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