Sizing RV Solar – Solar Panels, Battery Bank, & Inverter – Full Time RV



Sizing RV solar components can be difficult if you don’t know the steps required. Don’t worry! I am here to explain to you step-by-step how to accurately size your RV solar! Check out the blog post on our website for more details! https://www.fateunbound.com/sizing-rv-solar/

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Back when I assembled our solar system I found it very hard to find the information to accurately size our RV solar components. Because of this, our RV solar setup isn’t as perfect as it could be. It is undersized in a couple areas, and oversized in another. However, I’ve learned a lot since then and am here to explain to you step-by-step how to size your RV solar! So hopefully after reading this post you will be able to avoid the mistakes I made and succeed in accurately sizing your RV solar components.

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Music Credits
Music by: David Cutter Music – http://www.davidcuttermusic.com

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29 thoughts on “Sizing RV Solar – Solar Panels, Battery Bank, & Inverter – Full Time RV

  • October 2, 2020 at 10:14 am
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    Love your natural conversation with a great dog to add to the ease of delivery

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  • October 2, 2020 at 10:14 am
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    Can you tell my why you oversized your inverter so much? Safer how? Avoiding a danger of what sort? Thanks 🙏 I appreciated your great video!

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  • October 2, 2020 at 10:14 am
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    Lead Acid batteries have a rating that is called Reserve Capacity. This is the number of minutes that you can draw 25 amps from the battery. This can help you determine what battery you need. Also, if you make sure that you use a deep cycle battery (Marine or Golf Cart) then you will be able to fully discharge the battery and then recharge it without much concern.
    Here is an example. A NAPA BAT8146 is a Reserve Capacity of 488 minutes. This amounts to over 200AH when you do the math. However, being a golf cart battery, you need two of them to make up 12 V.
    Math: 488 / 60 = 8.13 hrs * 25 A = 203 AH

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  • October 2, 2020 at 10:14 am
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    David, very helpful video – thank you. QUESTION: how did you figure out how much amperage your lights use?

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  • October 2, 2020 at 10:14 am
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    Very informative. I am thinking about adding solar panels to my pop up but I am also thinking of a wind generator as well for cloudy days. Some days could be cloudy for a few days. What would you do or what would you recommend? I am a newbie to the rv camping world but old school in tent camping. Now Im getting older and laying on the ground is no longer an option for me.

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  • October 2, 2020 at 10:14 am
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    Fantastic explanation; clear, concise, and even I could do this with your vid. Thanks again.

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  • October 2, 2020 at 10:14 am
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    Very useful explanation. But why did you skip over the battery bank details? How many lithium batteries? How many acid batteries necessary with your figures? Why not show us the battery bank and how it is hooked up?

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  • October 2, 2020 at 10:14 am
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    Did you calculate your AC appliances amp draw from a 120vac source or from a 12dc source?

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  • October 2, 2020 at 10:14 am
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    I live in RV full time and always hooked to city power. But I want to use solar primarily that will switch to city power when my batteries are 80% discharged.

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  • October 2, 2020 at 10:14 am
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    How does your RV electrical grid know when to pull power from battery bank and when to pull power from city power? Does charge controller manage this?

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  • October 2, 2020 at 10:14 am
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    can you run your air conditioner using solar? I have a ''''limited income. Stationary rv living seems right for me, trying to limit monthly expenses, I live in TX and it gets hot. So curious if solar can bring down electric cost for me. Don't want to burden my daughter with supplying my electric costs on her bill too much. I'm 63. Still not sure about a lot of things living in an rv entails but trying to learn.

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  • October 2, 2020 at 10:14 am
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    Good coverage! What size mppt charge controller would you use in your example? Thanks!

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  • October 2, 2020 at 10:14 am
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    Sorry David, this is the first time I saw this video. I was wondering how you got the 100A for cooking, for 1/2 hour? I was thinking a 1200W cooker at 120V is 10A. I'm probably wrong on this, could you please explain?

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  • October 2, 2020 at 10:14 am
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    Amazing information! I love the ending… here’s all the exact numbers of what we need, but, ehhh, this is good enough!😂🤘🏻

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  • October 2, 2020 at 10:14 am
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    You never mention using the rooftop a/c. Will I be able to utilize that air conditioner? I have a propane stove so no a/c used there. I didnt hear you mention the fridge either. Do you routinely use propane for the fridge and battery?
    Thanks for the great videos!
    Robert

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  • October 2, 2020 at 10:14 am
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    I am an electrical engineer and have installed a home solar system (operating four years now). Great job explaining. One add-on for inverter is, it needs to handle appliance startup surge. if you ran an A/C unit, that can be substantial. Just saying, 3000 watts is not overkill really. Probably, just right.

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  • October 2, 2020 at 10:14 am
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    Micro-Air is at it again. They've invented the EasyTouch RV, a new thermostat control for A/C with WiFi and Bluetooth capacity to be released this Spring. See their Facebook for more information and a new product announcement –and also RV Electricity on FB. It's for the aftermarket. EasyStart is not their only RV product anymore.

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  • October 2, 2020 at 10:14 am
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    So I have a 10w solar panel, a 12v lead core battery and a 300w inverter to run only 1-2 40w lights at a time for about 4-5 hours a night… Maybe a small radio and a cell phone once in awhile…. Am I safe? Or do I need a bigger solar panel?…. Note- only for camp use

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  • October 2, 2020 at 10:14 am
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    Your 400 Ah Battery bank seems quite a bit lower than the suggested 585 Ah bank; have you ever had any issues with that….or do you just run your generator to top up?

    Reply

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