Installing a 24v to 12v Step Down Converter on a Humvee.

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  • Опубліковано 9 лют 2025

КОМЕНТАРІ • 82

  • @brentburnfield7004
    @brentburnfield7004 Рік тому +2

    Just bought a humvee! I’m grateful you made these videos!

  • @jaceblack5198
    @jaceblack5198 4 місяці тому +1

    New M1151A1 TD Rev owner here, thank you for all of the videos you've made. Please don't stop!

    • @MyHumveeMathilda
      @MyHumveeMathilda  4 місяці тому

      Thank you for your kind words. I will get back into it.

  • @beurownboss1554
    @beurownboss1554 Рік тому +2

    man I love your channel, you have pulled me out of a pinch with my rig so many times by checking in on your videos. I'm currently running into issues on my TCM not getting power so next step is I'm going to wire direct 12v to it so I can determine if the TCM is faulted or wiring to it is. Truck was running great this week then just crapped out randomly and went into limp mode so either a wire got knocked loose going to the TCM, relay crapped out, or TCM randomly died. Lets hope its a cheaper of the bunch and just a bad wire lol. Cheers brother!

    • @MyHumveeMathilda
      @MyHumveeMathilda  Рік тому +1

      Thank you for the kind words. Fingers crossed it’s a bad wire.🤞 I just had a similar issue with my back up light. Hoping it’s a bad wire or ground and I don’t have to open up the shifter.

    • @beurownboss1554
      @beurownboss1554 Рік тому

      @@MyHumveeMathilda If it ends up being TCM or I can't solve the mystery, I'm planning on getting the new stand alone TCM from BlackdogCustoms so I can just do away with the whole current setup. Ive been wanting to make a trip down that way anyway to see their facility but cost wise the wife is going to really put a hurting on me bc I am in the middle of some expensive remodels at my shop to now throw in more humvee expenses, oops. Again though seriously this is always my favorite go-to humvee channel on YT. Cheers brother!

    • @MyHumveeMathilda
      @MyHumveeMathilda  Рік тому +1

      @@beurownboss1554BlackDog makes good stuff. I got my cutoff switch from him.

  • @leonjrich
    @leonjrich 3 місяці тому +1

    Just seen your video love them. Easy to follow and very informative. Thanks.

  • @AZFATALT
    @AZFATALT Рік тому +1

    Thanks for this. I’m just getting to this part of my project and your videos really help. Appreciate you simplifying these things.

  • @Crampingmeow
    @Crampingmeow 10 місяців тому +1

    I just found your UA-cam channel. I really like your style and the information as well as how you explain things. In this video I love the look your cat gave you ha ha.

  • @nickpoly48
    @nickpoly48 Рік тому +1

    Love your content and how you don’t filter the things you say for example you said you want to add a lot of shit instead of some of these UA-camrs filtering and saying yeah guys I want to add a bunch of stuff or things. Keep up the good work. Im looking to get a hmmwv myself soon. So your channel has helped realize how much more I can do myself instead of paying others to do it

  • @luigarcia00
    @luigarcia00 Рік тому +2

    Great job brother!!!

  • @tduncan9938
    @tduncan9938 Рік тому +1

    Nice video!!!!! I’m from NC too….

  • @str8jacket07
    @str8jacket07 Рік тому

    I don't know if I can continue to watch, the shock and awe I felt after hearing someone swear, I was like my poor fucking ears...lmao, keep up the AMAZING work my friend, you inspire many of us DIY humvee guys to go forth and tackle our wish lists!!!

  • @sgtpek2621
    @sgtpek2621 Рік тому +1

    Another great video… thanks!

  • @GunsandGearNetwork
    @GunsandGearNetwork Рік тому +1

    Great as always!!

  • @graywalz
    @graywalz Рік тому +1

    Marvelous Bro

  • @sefisredtv8991
    @sefisredtv8991 Рік тому

    I am planning my soon to be megacruiser and your channel is a goldmine. Subbed.

  • @williamhart5972
    @williamhart5972 11 місяців тому +1

    Thanks. I really enjoyed the presentation. I installed a converter (20A) that has been killing me batteries. I also had a kill switch, but i put it on the positive side. Thanks

    • @MyHumveeMathilda
      @MyHumveeMathilda  11 місяців тому

      Oh noes! 😲 … always negative side, it cuts the circuit and no current flows through. Positive side is probably why you have the drain.

    • @williamhart5972
      @williamhart5972 10 місяців тому

      I am still having issues after installing the new converter. I also placed a kill switch on the negative, yet still getting power to 12v side. I believe it's because I have a few items still grounded to fame with power at the fuse box. Your thoughts.

    • @MyHumveeMathilda
      @MyHumveeMathilda  10 місяців тому

      Make sure 12v gets grounded back to the fuse box and only 24v stuff gets grounded to frame.

  • @mattangelo1280
    @mattangelo1280 10 місяців тому +1

    Man, cool video. I'm LS swapping to a 6.0l and didnt want to have a 3rd battery. This should save a ton of rewiring. Beautiful truck by the way. The paint is really nice

    • @MyHumveeMathilda
      @MyHumveeMathilda  10 місяців тому

      Thanks 🙏.
      Very interesting. I’ve seen a couple LS swaps in Humvees. There’s a guy who has a channel on UA-cam about it. Let me know how it goes.

  • @thomasb9874
    @thomasb9874 Рік тому +1

    very good explanations, great video👌

  • @2hotscottpro
    @2hotscottpro Рік тому +1

    Thanks for vid man I’m subbing for more !!!😊

  • @acd3169
    @acd3169 Рік тому +1

    Very informative. I need this on my Unimog that also runs on 24v. I might be considering getting a Converter of 100amps. Amazon time. 😊

  • @kevinriley5465
    @kevinriley5465 Рік тому +1

    Nice job buddy

  • @ggga6756
    @ggga6756 Рік тому

    Nice video Brother. I'm new in the community. I will do the same in my M1151A1. Keep posting videos please.

  • @rsriddle1982
    @rsriddle1982 Рік тому +2

    How/where did you add a kill switch so your batteries were not drained?

    • @MyHumveeMathilda
      @MyHumveeMathilda  Рік тому

      I made a cutoff switch from the negative of the battery to the Orion. That’ll cutoff the 12v. No kill switch for the batteries. If your batteries are getting drained you need to invest in a 24v trickle charger. Check out my video on charging your Humvee.
      ua-cam.com/video/O463vhUa37M/v-deo.htmlsi=hwUdpcChPsqS_J5s

    • @rsriddle1982
      @rsriddle1982 Рік тому

      Since your disconnect is running through the negative there is not a certain amperage needed on that toggle correct? I have not installed the step down yet but your video has given me the info i needed to get this done next weekend.

    • @MyHumveeMathilda
      @MyHumveeMathilda  Рік тому

      @@rsriddle1982 regular amperage that a 12v battery would handle. If I had to do it again, I would install the Orion higher up in the truck, not in the battery compartment. But you’re free to install it wherever you please. . Good luck with your install.

  • @2hotscottpro
    @2hotscottpro Рік тому +1

    Dang 24 seconds in n eyes n ears wide open!

  • @Team_Amateur_RC
    @Team_Amateur_RC Рік тому +1

    Great video. I was curious where you ended up mounting it fuse box. Also do you have a video about how you wired a light bar to the fuse box?

    • @MyHumveeMathilda
      @MyHumveeMathilda  Рік тому +1

      I will soon when I do my console. But it’s fairly simple. Red from fuse positive to switch, to light bar.
      Black wire from lightbar back to fuse box negative. Use the correct amp fuse in the fuse box based on how many amps the lightbar pulls.

    • @Team_Amateur_RC
      @Team_Amateur_RC Рік тому +1

      @@MyHumveeMathilda I’ll probably get a 6 fuse box so it can fit under the passenger seat.

    • @MyHumveeMathilda
      @MyHumveeMathilda  Рік тому +1

      @@Team_Amateur_RC don’t make the mistake of grounding a 12v accessory to the frame (24v), ground it back to the fuse box.

  • @romaellodfranco72
    @romaellodfranco72 Рік тому

    Great video as usual. At this point, you need to introduce your subscribers to the equalizer on your laptop that is always making a guest appearance in your videos.

    • @MyHumveeMathilda
      @MyHumveeMathilda  Рік тому

      @romaellodfranco72 Lol. I didn’t even notice it there. (Wink wink)
      It is my ‘study’ pew. 🔫 my trusty SCCY CPX-2 9mm. One of many I have around the house. (Couch pew, kitchen pew, basement pew, garage pew etc etc… you get the idea) 😆

  • @edwinrivera416
    @edwinrivera416 10 місяців тому +1

    Is that the reason why my battery keeps dying? Because I don’t have kill switch on the negative wire? Great video too!

    • @MyHumveeMathilda
      @MyHumveeMathilda  10 місяців тому

      Well two things. It’s not really necessary to have a kill switch for your battery. Having a kill switch for the step down for the 12v makes sense so it’s not running when the truck is off. That might be why your battery is draining. Try using a battery tender. I did a video on charging the humvee in my playlist. Don’t need an expensive trickle charger. Have a look.

  • @ionlylikedimes
    @ionlylikedimes Рік тому +1

    Thank you so much for a detailed explanation on how to set it up. I have one question though would it effect the fan if i built a little snorkel for it so when forging water cant get in there?

  • @ignaziodimino3941
    @ignaziodimino3941 5 місяців тому +1

    Hello did you ever hook up the stereo in the humvee. I’m having a problem getting the 12v constant power for radio memory. Please let me know thanks

    • @MyHumveeMathilda
      @MyHumveeMathilda  5 місяців тому

      Not yet, but here’s an idea, run a direct line to one of the batteries for the power. Not through the Orion. Make sure your truck is always on a 24v trickle charger.

  • @garageobsession2421
    @garageobsession2421 2 місяці тому +1

    What happens if I ground a 12v accessory (let’s say license plate led) to the frame and run the power wire to the 12v fuse box? I have the Orion on a switch so it really only gets power when the truck is running and I switch the converter on?

    • @MyHumveeMathilda
      @MyHumveeMathilda  2 місяці тому

      You’ll burn out your 12v accessory. Think of it this way. When you connect any accessory, let’s say a 24V accessory to the 24v battery set and then back to the frame, You’re completing a 24V circuit. That’s 24v positive and back to 24V negative if you run a 12V positive from the Orion to a 12V accessory and then complete the circuit to a 24V negative/frame, think of what that does to the circuit. You’re completing a 24V return. Grounding makes sense if the entire machine is a 12V system. But when you have dual volts systems, remember what the Ghostbusters said, do not cross the streams. 😂 do a little extra work, by running a black wire back to the 12V negative on the fusebox just to be safe.

  • @stephenbland7461
    @stephenbland7461 Рік тому +1

    What’s with the hand gun on the bench 🤔

    • @MyHumveeMathilda
      @MyHumveeMathilda  Рік тому +2

      A tool amongst other tools. 🤷🏻‍♂️

    • @stephenbland7461
      @stephenbland7461 Рік тому +1

      @@MyHumveeMathilda I guess as they are illegal here in the uk, it seems a bit weird, but I absolutely respect your culture over there in the USA. 👍

  • @The_Duck_Pond
    @The_Duck_Pond Рік тому

    Always wondered what would happen to the 12v side during fording …. The fan is so low assuming it would blow.

    • @MyHumveeMathilda
      @MyHumveeMathilda  Рік тому +1

      Good point. I’m hoping the kill switch that I’m putting on the center console, cutting off the 12v at the negative main might protect it.

  • @skyward88
    @skyward88 Рік тому

    Well done! Where did you find those 3 amber clearance lights? They must be 24v since you are currently working on the step down conversion.

    • @MyHumveeMathilda
      @MyHumveeMathilda  Рік тому

      Thank you. For the amber lights check out my previous videos for accessories. It is 12v, costs 12 bucks from Amazon and I have already hooked them up to my step down.

  • @beaucrazysnake9167
    @beaucrazysnake9167 6 місяців тому +1

    Good job. Inspiring to say the least. Rock on and vote trump!

  • @airgunsapinas360
    @airgunsapinas360 Рік тому

    I have a 24v truck, im using 2 12v n series connction i tap 1 wire on the + trmnal to get 12v power😂😂😂😂

    • @MyHumveeMathilda
      @MyHumveeMathilda  Рік тому +1

      That works if the load and draw on the 12v tap is minimal and you have a cutoff switch. Otherwise I’ve heard there’s a risk of improperly balanced output. But I’m no expert on electronics. 🤷🏻‍♂️🙂

    • @airgunsapinas360
      @airgunsapinas360 Рік тому

      @@MyHumveeMathilda but my ac is 24v

    • @MyHumveeMathilda
      @MyHumveeMathilda  Рік тому

      @@airgunsapinas360 sorry I must’ve read wrong. You’re right. 24v in series should work.