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solar system for shed

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  • sdold
    replied
    Originally posted by Freeesun View Post
    ...I have my solar cc contracted to the battery with a fuse box in between.... I’m wondering is there any difference if I connect my battery straight to my cc ...
    Keep the fuse between the battery and charge controller, it's there to protect the wire from over-current in case of a short in the wiring or catastrophic internal short in the CC.

    Leave a comment:


  • Freeesun
    replied
    I have a quick question. I have my solar cc contracted to the battery with a fuse box in between. The problem is is that i can’t see how much load I’m outputting. I’m wondering is there any difference if I connect my battery straight to my cc and have my load output or whatever the connections to the right of the cc with the light bulb connected to the fuse box.

    any difference in that setup beside being able to show me amps being used? What sucks is the inputs for my battery to cc are very small so 4 gauge wire won’t fit but I can make it a little smaller. I’ve heard not to use the output on the right of my cc and do it my way for some reason.

    Leave a comment:


  • Fordtrucksforever
    replied
    I changed out some led lights to run off dc solar. You need a dc-dc driver for whatever leds you have. Here is what I found to work. They should have something that will do what you want.

    https://www.ledsupply.com/led-driver...step-down-mode

    Leave a comment:


  • Mike90250
    replied
    Sorry, I didn't know you had 12VDC at the shed. So using a buck or linear voltage regulator to drop the voltage, and then use a LED driver circuit to limit the amps (LED will gleefully suck all the amps they can and burn out in an instant)
    Or you can simply buy some 12VDC RV lighting, or roll your own with LED bulbs with integral drivers for 9-30V like these:
    https://www.wiredco.com/10-LED-SMT-S...olwhiteled.htm

    Leave a comment:


  • Freeesun
    replied
    Not 120v my shed runs off of a 12v battery. So it’s 12v dc to 1.5v dc.

    ive seen voltage regulators that are cheap and go from 1.5-3-6-9v and so on. Couldn’t I just do that?

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  • Mike90250
    replied
    Originally posted by Freeesun View Post
    ...
    so my question is can I run these battery powered solar lights off of my shed solar system? I know the voltage for the aa battery’s is 1.5 and lithium is 3, I believe these lights use the 1.5 v. Is there any way I can solder the positive and negative of each light together and run it to my fuse box? Maybe add a resister in the line?

    thank you all again for the responses
    simply, NO

    No safe or sane way to connect a solar light to 120VAC

    Why not use a regular LED night light that's designed for 120VAC and bypass the fireworks.


    danger do not touch hurt while you die.jpg

    Leave a comment:


  • Freeesun
    replied
    I have a question and it might be stupid or a really easy answer but I just bought some led outdoor lights that have a small solar panel on them that charge a double a battery.

    I read a post on this forum where someone wanted to run their lights off of solar everyday and the system would cost a lot of money for that.

    I don’t want to run mine everyday just whenever I’m in the shed I want to turn them on. I know they sell wired 12v outdoor lights but they are really expensive in comparison to what I paid for these.

    so my question is can I run these battery powered solar lights off of my shed solar system? I know the voltage for the aa battery’s is 1.5 and lithium is 3, I believe these lights use the 1.5 v. Is there any way I can solder the positive and negative of each light together and run it to my fuse box? Maybe add a resister in the line?

    thank you all again for the responses

    Leave a comment:


  • SunEagle
    replied
    Originally posted by Freeesun View Post
    12000mah so 12ah? They get charged with a dc Input at the side of them which accepts 5-6v and 2a max. And I have two of them
    Well a battery that small might be charged with a small wattage panel but they are Lithium chemistry type batteries and will require a proper charger.

    The only way I see it working is for you to use an inverter with a 5-6v output connection but they probably need a 12v battery to connect to first and you will need to get a 12V PWM solar charger that works with a larger pv panel.

    Leave a comment:


  • Freeesun
    replied
    12000mah so 12ah? They get charged with a dc Input at the side of them which accepts 5-6v and 2a max. And I have two of them

    Leave a comment:


  • SunEagle
    replied
    Originally posted by Freeesun View Post
    I should of gave the information on which battery’s I have I have the voltaic v44 they’re small battery’s you put into your pocket as a spare.

    I didnt know if i could charge both of them with a 12v panel.
    But what is the Ah rating of those V44 batteries and how are they supposed to be charged?

    Leave a comment:


  • Freeesun
    replied
    I actually just figured it out... I could run the solar panel wording to the battery and right beside the battery have a cc with dual usbs out and connect each one to these battery’s.

    Leave a comment:


  • Freeesun
    replied
    I should of gave the information on which battery’s I have I have the voltaic v44 they’re small battery’s you put into your pocket as a spare.

    I didnt know if i could charge both of them with a 12v panel.

    Leave a comment:


  • SunEagle
    replied
    Originally posted by Freeesun View Post
    I have two 6v batteries but they are connected using a dc connection and have usb outs. I can’t open it and play around with them they are just a extra battery when I go camping.

    I have it it hooked up to a 6v solar panel but it’s not really doing a good job in the winter time charging both of them.

    what I would like to do is buy a 50 watt or 25watt 12v panel and charge my two 6v battery’s. I’m wondering if there is something that I can buy to change the voltage from a single 12 to 2 6vs?
    Well to charge a 12v battery system you need about 17volts. Most "battery" 12V panels really deliver between 17 & 18volts but to keep a set of FLA batteries properly charged you need about 1/10th the Ah rating. So if your two 6V batteries create a 12V 200Ah battery system you would need about 20amps to charge them.

    So that 6V panel is just about useless for your batteries and even a 50watt panel will not do the trick. For 20amps you would need about 240watts and a MPPT type CC or 4 panels that can delivery more than 5 amps each wired in parallel to a PWM type CC that is rated 20 to 30amps.

    Building a solar/battery system is not necessarily cheap.

    Leave a comment:


  • Freeesun
    replied
    I have two 6v batteries but they are connected using a dc connection and have usb outs. I can’t open it and play around with them they are just a extra battery when I go camping.

    I have it it hooked up to a 6v solar panel but it’s not really doing a good job in the winter time charging both of them.

    what I would like to do is buy a 50 watt or 25watt 12v panel and charge my two 6v battery’s. I’m wondering if there is something that I can buy to change the voltage from a single 12 to 2 6vs?

    Leave a comment:


  • Freeesun
    replied
    It’s a lead acid deep cycle

    Leave a comment:

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