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Old 09-22-2014, 07:43 AM   #1
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How long will Battery and propane last

i have a 2014 mini lite 2104s. We set it up on a weekend spot that is a boondocking style spot. We will have it there for 9 weeks. My question is running the fridge on propane only how long will the 2 20lb tanks last.

2) wife wants to leave some items in the fridge and leave it running. no meat or items that will spoil and smell up the place if fridge dies.
How long will the standard battery that comes with the TT last just running the fridge and the other drain items like co2 sensor, radio memory if we left the fridge running. We will have a generator there on friday - sunday to charge the battery.

3) If i wanted to add a solar charger what watts would it need to be to keep the battery charged?


Thank you
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Old 09-22-2014, 08:05 AM   #2
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There is no real "standard" battery. It just depends on what your particular dealer chooses to mount on their rigs. What size have you got and what part of the country are you in?

Solar is a great option for a longer term setup like that, and if you are going to be there every weekend with a genset it should be pretty doable. Propane wise... that depends a lot on how much you'll be using for cooking/heating/water heater while you're on site for the weekend, and how large your reefer is. If it is JUST the fridge you should be able to get a good 6-8 weeks or more off of 2 - 20's. Your batteries will be the limiting factor, but more info is needed to help much more than that.
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Old 09-22-2014, 08:37 AM   #3
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You could always set it up at home and test it to find out how long it would last you. Set it up and use it as you would if you were there and see what happens. Would also like to know on the solar but bigger is better with solar and use a device so the batteries don't over charge. I'd install 2 batteries also.
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Old 09-22-2014, 08:37 AM   #4
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I can answer that one first hand. On propane....months. I've got an identical rig and run two group 24's. About two weeks is all I got before I hit 50% voltage. That was without the fridge running. Based on my short boondocking runs, the fridge doesn't add a whole lot of drain on top of that.

Interestingly enough, I was adding some lighting in the pass through a few weeks ago and was poking around looking at wiring out of curiosity. I found that the slide motor controller was reading 5V output with the disconnect off. I'm guessing the slide motors get constant power to provide a brake to keep it from flying out going down the road (and reading through some trouble shooting papers, that seems to be the case). Don't know exactly how much it pulls, but I didn't think about that adding to the power drain.
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Old 09-22-2014, 08:45 AM   #5
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Don't know the power drain, but we filled our 1st 30# cyl in Feb 14 since getting the trailer in Feb 2012 and we never turn the frig off. Spent 3+ months in it the winter of 2012 & the same in 2013 and use the propane for the water heater also.
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Old 09-22-2014, 08:56 AM   #6
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You might consider disconnecting the radio & CO2 propane monitor as well. Just remember to reconnect before using the TT. I use 2 6volt golf cart batteries & they would last a week easily. For 9 weeks, I would be looking at solar, it would be a fun project

Honestly, I think it is safer & less $$ to just shut it down for the week & bring a cooler with you to the campsite.
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Old 09-22-2014, 09:22 AM   #7
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I looking at getting a 30watt solar unit. We are working at The texas renfest. I will be working at Brigadoon brewery learning to make beer and drink some of what i make. Brigadoon will be providing Lunch and dinner for me.
The camping area has showers and bathrooms. Breakfast would be the only meal we really eat at the TT maybe some snaks and drinks. wife said she may use the shower in the trailer not to keen on using the showers there. They have service that comes to your camper and empties the tanks for you. cost like $60 a month if you request it.
I planed on looking at box and turning breaker off on everthing i can.

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Old 09-22-2014, 04:54 PM   #8
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If it were me, I'd use a cooler and some dry ice and not bother with the fridge at all. I'm assuming you're just doing a few nights at a time and leaving the trailer there? That being the case, I'd just pull the battery and bring it home to charge between trips. Staying there for nine weeks straight...maybe just throw the disconnect when you're not actually in it and you might make it.

I'll have to stop by Brigadoon this year. I'll be up there twice, just don't know when. Hoping to be at a different job in a few weeks, but haven't heard back yet.
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Old 09-22-2014, 05:20 PM   #9
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Nice Trailer.
As others have said the battery will become an issue. If it was mine I would either put 200 Watt of solar on the roof if you're in an area with enough sun light (it is fall btw. ), or buy 3 more batteries where you can add 1 to your current battery and charge the other 2 and swap them out every week.
A more permanent solution would be of course the solar approach with true deep cycle batteries, but pricey.
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Old 09-22-2014, 05:33 PM   #10
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The only thing that will be running on battery is the control panel for the fridge and other vampire things like co2 detector. The batter would only need to last for 4 full day. The morning of the 5th day I will have a generator hooked up to run AC and such for 3 days
For cost wise I wonder if a 30 watt solar charger would be enough
Here in texas we still have lots of sunshine well unless it storming..
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