How To Connect Solar Panel to 12 Volt Battery

How To Connect Solar Panel to 12 Volt Battery Colorado’s 1st Choice RV Dealer in New and Used Travel Trailers for Sale!

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20 thoughts on “How To Connect Solar Panel to 12 Volt Battery”

  1. Jim. Thank you for this video. Do you recommend installing an in-line fuse on the positive wire from the Solar Panel to the Controller and to the positive wire from the solar controller to the battery bank? If so, how would you calculate the size of the fuses?

  2. The solar panel on my 2000 fleetwood Storm cracked. I replaced it with 3 panels from harbor freight. They put out 35 watts. I connected to using the existing solar panel cable on roof. Is that to much power. I think the original was only about 1 watt.

  3. I have a problem with my solar system,
    I have a 100w solar paler new,,, and a 12volt deep cycle battery and a 30 amp charge controller.
    And when I check the solar panel by it self I get 14.6 watt out of the solar wires on the panel, but after I connect the solar panel to the 30 amp charge controller I only get 10.6 volt out of the charge controller so i only get 10.6 volt going into my deep cycle battery,,, so my 12.7 full charge battery goes down to 10.6 volt in a couple of days and stays there,
    Can you explain to me why is this happening? .
    I already had tried two diferent charge controlers and I get the same problem

  4. Wow! wish that I had found this video a couple of years ago. I've ruined a 1000 bucks worth of batteries all while not getting effective use from them. I have 5 250 watt panels and had 8 deep cycle batteries with charge controllers of course. I had read a book and watched youtube videos. One guy had a bank of 5 or 6 batteries, he hooked his charge controllers in the center of the battery bank and feed off one end. I tried that, not to good. I went and talked to a friend that's pretty good with electronics. He figured, hook controllers to one end and feed from the other. of course my batteries never got charged up and would die in the middle of the night. I now have a few hundred pounds of expensive anchor weighs. Thank you so much for the video! Got to start over with new batteries but now I know how to wire them up properly. Thanks buddy!

  5. Hi thanks for a great video please explain to me if it's not gonna destroy my new solar battery charger if l connect my trolling motor together with the battery charger is it okayou or its gotta be done separately

  6. Thank you for your great video's. Have you done a video that includes how to set up and wire a fuse block. Do you even use one for having different circuits or for different 12 V appliances etc?

  7. You explain these things so well, I have no trouble understanding steps I have to take to make something work. You do a great job and thank you

  8. Hi! Do you think I can add a lighted rocker switch in between the panel and the solar controller, to enable/disable the panel? Can I assume the panel will provide the power and act as the power source for the switch LED? Just wondering… thanks!

  9. what I actually mean is I have seen some inverter connected to the system from the charger controller and some are connected straight from the batteries. Hence my question is which one is the best way to connect an inverter

  10. which one may workout best between connecting the inverter directly from the batteries terminals and connecting the inverter from the charger controller

  11. Jim,
    Thank you for your excellent Video.
    I am a Missionary Doctor from the States who serves in Kenya.  I bought a Challenger Rhino Trailer from South Africa to do Camping on the cheap with the family.  The trailer has an HCdP Electronics Power Panel MK3 with a Ring 300 Watt Inverter attached.  I have a Brad Anderson Plug from the Land Rover Defender 110 Battery which which feeds into the Power Panel which will recharge the Trailer Battery enroute, as well as runs the freezer as I travel; and, for times when I am parked and a power source is available, I have a three prong plug that will give 220-240 V power to the system and recharge the system and run the freezer, etc…, as well.  Here is my question (and, I am new at this stuff):  I have a 150 watt solar panel set that came from South Africa and I have no clue as to how to feed the Solar Panel energy into the MK3 System.  Can I just hook the Brad Anderson Plug from the Solar  Panels into the trailer's car battery feed Brad Anderson Plug, or do I need to wire the Solar Power directly into the MK3 Power Panel?  And, if I do this, does the Steca Solar Charge Controller need to be utilized, or does the MK3 unit do the work of the Solar Charge Controller, thus making the Controller unnecessary?
    Thank you for considering this question, as where I live, it is often very difficult to get technical help to answer these types of questions.

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