12v Appliances & Accessories for Preppers and Hams

12v Appliances & Accessories for Preppers and Hams

Do you really need an inverter for your offgrid system? Learn to identify your 12v appliances and eliminate the AC-to-DC adapter.

#thetechprepper #inverter #12v #offgrid #bioenno #solar #battery #hamradio #andersonpowerpoles #2.5mm #2.1mm #poweradapter #automotivefuseholder #fusedcable #prepper

If you’re new to the channel, welcome! I’m “The Tech Prepper” and I try to produce weekly videos on all topics related to preparedness. Thanks for supporting the channel! If you like the content, don’t forget to hit the thumbs up icon, leave a comment, and subscribe to the channel. “Be strong, be safe and be prepared.” — The Tech Prepper

As an Amazon Associate I earn from qualifying purchases. If you’re interested in any items shown in the video, you can help the channel by using the affiliate links below. It doesn’t cost you anything.

1. Valley Enterprises 2.5mm x 5.5mm Straight DC Male Power Plug with Anderson Powerpole Connectors – https://amzn.to/3icUC94

Related Videos:
1. My First DIY Solar System – https://youtu.be/poZYOCWRUJ0

Episode: #60

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  1. Reco Blade on June 2, 2022 at 10:07 pm

    While this may not be a new video it showed up in my for you at the perfect time thank you very much for your content

  2. TJ S on June 2, 2022 at 10:07 pm

    Very nice video! I’d like to see your refined mini solar generator. And once you get it all in place, I’d love to see your solution for your freezer. That’s what I’d like to do, is to have a system for my fridge and freezer, with the possibility to run a few lights.

  3. Jethro on June 2, 2022 at 10:08 pm

    Can you tell is what you use the router for?

  4. Peacenik on June 2, 2022 at 10:08 pm

    Thanks! I’ve wondered if there was something I was missing when thinking about doing this.

  5. Will Kelly on June 2, 2022 at 10:08 pm

    Ya don’t need routers when the fall occurs. You should try out guns, they work without batteries.

  6. S Kolander on June 2, 2022 at 10:08 pm

    Wow!! your channel is so cool!! Unique!! Informative!! Keep Going!! and be sure to "back-up" your presentations, multiple platforms (and keep no-tech versions, i.e. your words and diagrams on pen and paper)

  7. youcantseeme on June 2, 2022 at 10:13 pm

    Great idea

  8. Ray K2RCB on June 2, 2022 at 10:16 pm

    Good advice and nice job presenting it! Keep us up to date with your larger 12V project!

  9. Scott Chapman on June 2, 2022 at 10:18 pm

    Great explanation of your approach!

    I also have a small off-grid solar system in the house and recently purchased a couple of these:


    … to allow me to have some high-quality 12v lighting available.  They are insanely nice!  Besides having a high/low/off switch on EACH light, they can be daisy-chained.   I bought two but don’t think I’m going to be able to resist buying 2 more.

    Oh, and even on the low setting, just one of them lights an entire room or hallway.

    -Scott,  K4KDR

  10. Moondog on June 2, 2022 at 10:19 pm

    Why do you call yourself The Tech Prepper? Yes, you have some reviews of technology that preppers use, but you also have reviews of non-tech things that preppers use, such as food. Did you have a career in some tech field? What was the field?

  11. Sue D on June 2, 2022 at 10:21 pm

    Thanks for updating as you go.

  12. The Machine Elf on June 2, 2022 at 10:22 pm

    You weren’t taking into account the losses in those crappy plug in transformers.

  13. forget_your_life on June 2, 2022 at 10:29 pm

    A DC powered freezer sounds interesting. Cant wait to see how thats done.

  14. bwvids on June 2, 2022 at 10:32 pm

    Nice finds! Have been trying to keep all my electronics chargeable over DC 12v power cables or USB cables in my van with a GoalZero battery bank (charge via 12v while driving or solar) – the Anderson connectors and fuses seem like a good idea too! 👏

  15. Michele Elliott on June 2, 2022 at 10:34 pm

    Just what I was looking for. Thanks.

  16. bkelly707 on June 2, 2022 at 10:36 pm

    Not only are you losing efficiency at the inverter bit there will be power losses from the ac to dc conversion with the wall wart

  17. Chris Keller on June 2, 2022 at 10:36 pm

    Fine business! The inverter is a nice tool to have but DC to DC is definitely the way to go when possible. Boost and buck converters will step voltage up and down as needed, and for 12/24V systems those are pretty easy to find from automotive suppliers.

  18. Human Sustainability on June 2, 2022 at 10:50 pm

    Thanks for putting this together. There are obviously some things preppers need to get before worrying about tech when SHTF but for those of us who have air, water, shelter, food and lead throwers covered; tech will massively increase our grid down productivity and security.

    For compact systems that are close to their power supplies DC is more efficient power source than AC. Only use the AC inverters if you need to throw your power ‘long’ distance or lack of large cable gage is a limiting factor. Remember when using DC the higher the gage the more efficient it’ll be.

  19. Jessica Dee on June 2, 2022 at 10:53 pm

    1.23 k subscribers?! You’re famous! 😉❤️

  20. Build and Grow 21 on June 2, 2022 at 10:53 pm

    Could you help with music? For those of us that can’t play and in case of need for powerless music what would you recommend? Thanks for all your work.

  21. Viron Payne on June 2, 2022 at 11:03 pm

    You are heading the right way. When you design your PV system keep this general rule in mind to keep I^R losses low and minimize wire guage required. Keep your DC current to 100A or less. You will find that the industry already tends to follow this rule in sizing inverters, etc.
    Also, the off-grid lithium battery industry has skipped over 24VDC batteries going from 12VDC straight to 48VDC. So if you are designing a system to support a 1500W-3000W inverter you should consider a 48VDC battery system instead of a 24VDC.
    I went with 16ea. 100W Renogy monocrystalline PV panels and two Morningstar Solar Prostar MPPT-40M charge controllers. This allows my to run 1200W of PV to a 24VDC 150Ah battery bank comprise of four 75Ah 12VDC AGM batteries powering a Samlex 3000W pure signwave inverter. This can be used to power my refrigerator or small portable or window HVAC. The components were chosen based upon reported reliability and FCC class B rfi noise certifications.
    The 400W of PV system can power a 12VDC 75Ah of AGM battery for powering radios and other small 12VDC gear.
    I do have a 12VDC 300W Samlex inverter that I mainly have for plugging into my Chrysler 300.
    I have 18VDC tool batteries, fans, and lights with enough power for 2-3 days of fans and lights before I need to deploy solar.
    Breakers and box are from Midnight Solar and I have a system wide GFI from Morningstar Solar that does NOT require an earthground.
    As I built the system 5-6 years ago I stand by my build decisions at that time. With the industry as it is now I probable would do a 48VDC battery system.

    My systems are meant to be portable. I cannot install solar on my condo, nor can I use a generator after a hurricane due to CO2 issues and code.
    As I did a portable system I used 3 conductor flexible rubber jacketed portable power cable to PV array, battery bank, and inverter. The three conductor cable gives me flexibility as to where I put my earthground should I use one and it allows an easy way to tie the grounds together from one end of the system to the other.
    One last important note. Look at the latest NEC for solar. There is a DC voltage limit of I believe 85VDC at the component level. For PV panels it is based on open circuit voltage. This for the safety of first responders to prevent or reduce the likelihood of electrocution. Four 100W nominal 12VDC panels exceed this voltage by 2-3 volts being around 18.5VDC pmax and 22VDC open circuit voltage.
    NEC has to be adopted into local building codes before becoming effective and applies to new construction and major renovations. Find out where you area is related to the latest NEC and design accordingly.
    Also, inverted losses are fixed based upon voltage drops across descreet components like diodes. That is one reason higher voltage PV systems, battery banks, and inverter acheive higher efficiencies.

  22. Mary Picard on June 2, 2022 at 11:03 pm


  23. BAN EVERYTHING! on June 2, 2022 at 11:04 pm

    I ordered a USB 5 volt to 12 volt cable in hopes of running my WIFI router from a power bank. I have a Rockpals 280 watt hour power station and in a test I ran my WIFI for six hours and lost 19% of the charge using the AC output. But during a power outage I`ll need to recharge the Rockpals with a 60 watt solar panel and my internet will be interrupted for hours.

    I saw one of the converter cables and ordered four and a multimeter to test the polarity and voltage so I won`t damage my router. I have 15 power banks and six smaller wattage panels with USB ports to keep plenty of those charged for various devices and they should also easily power a 5 watt 12 volt WIFI router too.

    The 20 to 30 watt portable USB solar panels easily power a small USB fan even on cloudy days and it`s much less expensive than buying batteries for fans after hurricanes and other bad storms. I also bought a little 12 volt DC water heating element that you place in a cup and a cigarette port adapter for my 60 watt panel. Hopefully I can heat water with the 18 volts coming from my 60 watt panel with it without damaging anything so I can have instant coffee. It`s rated at 120 watts and my panel puts out about 50+ in bright sun. What do you think? Will it work but just slower or will my panel burn out? I haven`t received it yet.

  24. Braz1956 on June 2, 2022 at 11:04 pm

    Nice video! Good info I can use and good presentation.

  25. ashtwenty12 on June 2, 2022 at 11:05 pm

    Do you need to regulate the output of the battery too the divice for direct connect? Or dose the input device determine the current drawn. Ps the fuse is just for surges rite?

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