Solar powered invisible dog fence

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  • Musselmark
    Junior Member
    • Nov 2017
    • 2

    Solar powered invisible dog fence

    I want to stop my German Shepherd from running up my 1700 foot driveway in the forest. I was thinking of using an buried wire invisible fence/ shock collar across the driveway halfway up. Too far to run power from my house. The system uses 5 watts/120volts through a plug in adapter to 9 volts DC. I saw some cheap 12 volt to 9 volt DC transformers on ebay for 4 dollars. Could I run this with a 20 watt solar panel and car battery. Thanks.
  • AzRoute66
    Solar Fanatic
    • Jul 2017
    • 446

    #2
    5W x 24 hours = 120 Wh. That would require 120 Wh / 20 W = 6 sun-hours, so no you can't. A 100 W panel would probably do it, maybe more if the system 'leaks' or discharges frequently. Start with a 100W and a good 12v deep cycle battery.

    Just as an aside, the tales of invisible fencing I've heard have never been good. Once the dog learns that it is a brief unpleasantry they will go right through it if motivated enough; then, once out, have to find the motivation to go through it again to return.
    Last edited by AzRoute66; 12-05-2017, 01:49 AM.

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    • Musselmark
      Junior Member
      • Nov 2017
      • 2

      #3
      Thanks

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      • peakbagger
        Solar Fanatic
        • Jun 2010
        • 1565

        #4
        BTW, Many dogs figure out that if they run fast through the fence that as soon as they are about 10 feet outside, the collar stops zapping them. It works for awhile and may work long term for a dog that just doesnt want to roam but not a substitute for training.

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        • bcroe
          Solar Fanatic
          • Jan 2012
          • 5203

          #5
          A few thoughts...
          If the fence relies on an RF transmitter, surely it doesn't run at the 5 watt level. I would measure the actual
          current at 9V going into the unit; typically it will be a LOT LESS power than the 120V power unit adapter
          consumes or is rated. Use a switching 12V to 9V DC-DC converter for best efficiency, or pick another
          battery voltage and do the same.

          If this is just a narrow drive, you could easily make multiple runs of the antenna
          say every 15 feet, so it would be quite a long unpleasant trip across.

          If you have clouds or snow, you will need a lot more reserve than 24 hours. 10 days might work over
          the long term; a couple big generic grid tie panels are not that much more expensive than those tiny
          ones. Even so, snow sitting on the panels/a long siege of winter clouds (we have gone a month
          without seeing the sun) could run your battery flat, killing it. To save it, you could use a low charge
          cut off, or pick a type battery that won't be damaged by sitting discharged for a while. Large enough
          panels running at 8% under clouds, might still have enough output to keep the system going.
          good luck, Bruce Roe

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          • nudsenma
            Banned
            • Sep 2021
            • 1

            #6
            The idea is excellent, and you only need specialists who can help you with the realization. My husband still had more innovative ideas and could not find a company that could achieve his goal. But after long searches, I found this company that became a partnership with my husband. They like challenges and have agreed to do any fad at our future gate. Since then, we only recommend them, because honestly, out of about fifteen companies we called, only Everlast Gates agreed with our plan, which is a rarity. I hope I helped you.
            Last edited by SunEagle; 09-14-2021, 08:29 AM. Reason: removed advertising link

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            • SunEagle
              Super Moderator
              • Oct 2012
              • 15126

              #7
              Originally posted by nudsenma
              The idea is excellent, and you only need specialists who can help you with the realization. My husband still had more innovative ideas and could not find a company that could achieve his goal. But after long searches, I found this company that became a partnership with my husband. They like challenges and have agreed to do any fad at our future gate. Since then, we only recommend them, because honestly, out of about ... only this one agreed with our plan, which is a rarity. I hope I helped you.
              Hello nudsenma and welcome to Solar Panel Talk.

              Please do not include links to other sites without first getting approval from the Admin.
              Last edited by SunEagle; 09-14-2021, 08:29 AM.

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