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Solar power for fridge

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Category: R-pod Discussion Forums
Forum Name: Podmods, Maintenance, Tips and Tricks
Forum Discription: Ask maintenance questions, share your podmods (modifications) and helpful tips
URL: http://www.rpod-owners.com/forum_posts.asp?TID=10854
Printed Date: 17 May 2024 at 3:12am
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Topic: Solar power for fridge
Posted By: js555
Subject: Solar power for fridge
Date Posted: 29 Oct 2017 at 1:44am
Hi all,

I bought a 178 last december and I am so happy.
I want to run the fridge with solar, I am not familiar with any of these things.
I could not run the fridge on battery the other day as I was on a 7 hour trip. Any ideas or reasons why ?
But I would love to save battery and run the fridge, but it seems that the fridge will not run on battery mode. Is there a reason for this ?
So what wattage and amperage would I need to run the fridge and the TV ? How many batteries would I need and would I need an inverter to make it 120 V's ?
Any help would be appreciated.

Best

JS•



Replies:
Posted By: JandL
Date Posted: 29 Oct 2017 at 10:21am
Refrigerator on DC draws around 11.00 amps. It would take many solar panels to power the refrigerator. I would recommend running it on propane if you don't have AC available. I can't run my refrigerator on DC while driving because the wire from the truck battery to the RV socket is only 12 gauge. The truck alternator can not supply the needs of the truck and refrigerator at the same time, so I run on propane

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JandL
2013 Honda Ridgeline
2012 177
2 Paynes in a Pod


Posted By: GlueGuy
Date Posted: 29 Oct 2017 at 10:34am
Originally posted by JandL

Refrigerator on DC draws around 11.00 amps. It would take many solar panels to power the refrigerator. I would recommend running it on propane if you don't have AC available. I can't run my refrigerator on DC while driving because the wire from the truck battery to the RV socket is only 12 gauge. The truck alternator can not supply the needs of the truck and refrigerator at the same time, so I run on propane
The ampacity of a 12 AWG wire is 20 amps. No problem running the fridge with that. However, the capability of your TV is a real concern. If you also need to charge the battery, then you might come up short (no pun intended).

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bp
2017 R-Pod 179 Hood River
2015 Ford F150 SuperCrew 4WD 3.5L Ecoboost


Posted By: furpod
Date Posted: 29 Oct 2017 at 12:05pm
Just run on propane. It will run for 5-6 weeks on a single 20 pound tank. The battery bank and solar panel requirements for "running on solar"just can't be done on a 17 foot trailer with 8 sq feet of flat roof.. and will cost 1/2 as much as the Pod did.


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Posted By: fwunder
Date Posted: 29 Oct 2017 at 12:48pm
I agree with the above comments. Solar powered fridge just doesn't make a lot of sense. Propane is the way to go. However...

An earlier discussion involved gallons of Vodka. I therefore, do recommend a solar powered blender! Strawberry Daiquiris for everyone! Star






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2014 RPod 178 => https://goo.gl/CV446f - MyMods and Buying Habits
2008 4Runner Limited 4.0-liter V6
Yes, those are wild ponies dining on grass while dumping tanks!


Posted By: Leo B
Date Posted: 29 Oct 2017 at 1:15pm
Ha! A must for every camping trip!

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Leo & Melissa Bachand
2017 Ford F150
2021 Vista Cruiser 19 csk
Previously owned
2015 Rpod 179
2010 Rpod 171


Posted By: Keith-N-Dar
Date Posted: 29 Oct 2017 at 1:20pm
And I was feeling pretty smug for adding a solar battery maintainer to our Pod.

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Keith-N-Dar
Boris & Betty (Boston Terriers)
2011 R-Pod 177
2010 Ford F-150


Posted By: sailor323
Date Posted: 07 Nov 2017 at 7:49am
Originally posted by fwunder

. . . However...

An earlier discussion involved gallons of Vodka. I therefore, do recommend a solar powered blender! Strawberry Daiquiris for everyone! Star

LOL  but I just use a 12v blender

 


Posted By: lostagain
Date Posted: 07 Nov 2017 at 8:57am
Margaritas with ice crushed by hand requires no electro/mechanical equipment whatsoever.  Just smash the ice inside a towel with a crescent wrench, or what ever blunt objet is handy, put the ingredients in a mason jar, shake, and serve.  

For those who are purists, use a good tequila, lime juice, triple sec or Contreau [depending on your budget], and salt along with your manually crushed ice.  --- no margarita mix stuff.  Yuck!


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Never leave footprints behind.
Fred & Maria Kearney
Sonoma 167RB
Our Pod 172
2019 Ford F-150 4x4 2.7 EcoBoost


Posted By: CharlieM
Date Posted: 07 Nov 2017 at 9:53am
Originally posted by GlueGuy


The ampacity of a 12 AWG wire is 20 amps. No problem running the fridge with that. However, the capability of your TV is a real concern. If you also need to charge the battery, then you might come up short (no pun intended).

The ampacity of 12 AWg is not really the issue. Ampacity is a fire safety rating based on the allowable temperature rise at a given current. Voltage drop is the real issue for us. One half to one volt drop at 120V has little effect but it has a huge effect on a 12V charging system. The TV's charging system limits the alternator output to ~13.5V as measured at the TV battery. By the time this suffers the drop in the long #12 wire it delivers very little current to the TT battery and appliances. Most TVs only deliver 10A max to the TT and much less most of the time.


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Charlie
Northern Colorado
OLD: 2013 RP-172, 2010 Honda Pilot 3.5L 4WD
PRESENT: 2014 Camplite 21RBS, 2013 Supercharged Tacoma 4L V6 4WD



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