Solar Energy

Trail Cam Solar Panel DIY



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32 Comments

  1. How do you determine the operating voltage of a camera or feeder? I have an old camera that takes 6 D cells. One would assume that the voltage would be 9 volt.. 1.5 v X 6..

  2. I got a new SPYPOINT flex. Have you every thought of putting rechargeable batteries in your trail cam and then having a solar panel charge those internal batteries? Would this be possible?

  3. I have three game cameras that I have been using with external 12v SLA batteries and 1.5w solar panels. After seeing this video, I felt that I had been lucky that I had not fried my cameras. Now I am not an electrician and really don’t understand why, but here is what I discovered in testing battery voltage with and without a solar panel attached. The solar panel was producing around 23v in full sun. The voltage of a new fully charged SLA battery was 13.08v. When I connected the solar panel leads to the battery the voltage out of the battery was still 13.08v. Even the solar panel leads read 13.08 when connected to the battery and 23+v when disconnected. Did the same test on an older battery that registered 12.78v and again the battery output remained at 12.78 after connecting the solar panel. It appears, in these two tests anyway, that the output of the battery remains the same after connecting the solar panel producing 23 volts.

  4. Super neat idea, I really like your stuff and looking to do something similar because I have two leases I help manage that are both an hour away. I do have a suggestion regarding the electronics. I have a EE background and design a lot of power-related circuits. The 7812 is a linear device. Be careful driving that off of a panel pulling 19 volts in full sun like that (and wrapped in tape). The larger the voltage difference, the more heat it's going to generate when the charge demand is high (which would typically be right after sunrise). You're not going to cause a fire or anything but it will really shorten the life of it running it that hard and that tape will fail when the adhesive gets warm. The good thing about this is that running the regulator guarantees that you're not going to back feed out of the battery during a lull on the panel. Consider adding a switching regulator instead of the 7812. Murata makes them (among others) . They're a little more, like 5 bucks instead of a dollar, but they're more efficient so you're not turning the excess into heat, and you're getting much more charge from the panel. That's about as good as you're gonna do without going crazy with a charge controller.

  5. Do you run regular "AA" batteries with the first camera, or are the rechargeable?
    Second camera…how long do the big 12v batteries usually last? I know every location is different…im just looking for a ballpark time frame. 1 year, 2 years, 6 months?

  6. I've struggled with finding relatively reliable, affordable trail camera systems that don't require that I replace the batteries every month in the cold Wisconsin weather. I will be giving this a shot, but until I can afford new cameras. I'm going to try to rig this to my current cheap cameras. THANKS! :)

  7. No solar controller? How are you not cooking your battery? low amperage panels or a panel with built in solar controller? What kind of life are you getting from a battery not using a solar controller? I understand the voltage regulation just asking about not cooking the batteries. Most panels builders don't recommend not using a controller to prevent cooking the battery. Thank You! Awesome video's!

  8. My question about the diode is when using an external battery. I see you have already answered that the internal batteries are already protected. I don't want to drain the external battery at night. Thanks again.

  9. Thank you for taking the time and trouble to make this video. You have me started on a new project. I do have a question. Do I need to install a diode in the power line (white wire) from the solar panel going to the battery? If so does the band on the diode face the battery or the panel?

  10. So I have an ANCIENT Stealthcam trail camera that uses 6 D cell batteries(=9 volts)It is a prime candidate for an external battery/solar system. However, I am unsure where to place the probes for my multi meter. If I go from the neg. on one row of batteries to the pos. on the last row I get 9 volts(all six batts). Would that mean that the internal operating power is 9volts or could it be less? There are three rows of two D cells each.

  11. Hi ? For you what is the volts coming out of the 12v regulator ? I tested mine today I have a 12v battery 7.5am hook straight to the 7812 chip and I’m only getting 11volts out and it won’t run my camera!? Bad chip ??? Thanks great videos keep them coming out 👏

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