Two Batteries and Two Tanks - Fiberglass RV


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Old 06-25-2012, 04:19 PM   #1
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Lightbulb Two Batteries and Two Tanks

With all of the talk about living off the grid for as long as possible, I can not imagine that I am the only one who has desires, or who has actually, mounted two 6V deep cycle batteries and two propane tanks, on the front of their scamp 12 footer.

Is there an issue of tongue weight?

Does anybody have, or have they seen, photos of this done. and what is the best way to mount the batteries and tanks.

Thanks everyone for the feedback!!!!

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Old 06-25-2012, 05:00 PM   #2
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I mounted 2 batteries and single propane on my EggCamper, tongue weight was approaching 400#, there is a max t/w # for your trailer posted someplace.
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Old 06-25-2012, 05:13 PM   #3
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Originally Posted by Thee Jimbo View Post
With all of the talk about living off the grid for as long as possible, I can not imagine that I am the only one who has desires, or who has actually, mounted two 6V deep cycle batteries and two propane tanks, on the front of their scamp 12 footer.

Is there an issue of tongue weight?

Does anybody have, or have they seen, photos of this done. and what is the best way to mount the batteries and tanks.

Thanks everyone for the feedback!!!!

I have a single tank, and an 80 amp hour battery. I spent 100 days each of the last two years off the grid. Hmmm, I'm not doing something right.


FYI Scamp has never made a1 12 footer.
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Old 06-25-2012, 05:44 PM   #4
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People will go to 6 volt golf cart batteries or dual parallel 12 volt batteries when they want to run AC appliances like a microwave or they have a battery only refrigerator. As for propane, if you use a gas refrigerator and/or a propane cook top, one tank should last a long time. If you camp where or when you need a furnace, or a hot water heater, one tank will get used up quickly. At that point a second tank saves a trip to town. As far as tongue weight , the extra battery can add up to 100 lbs or so and the extra tank about 40 lbs. Lots of folks have done both. Here's a good example.

New batteries & fiberglass tanks for Bigfoot 21RB..
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Old 06-25-2012, 06:05 PM   #5
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The 6 volt GC-110 golf cart batteries are big and heavy.I have twin group 27s with solar for boondocking.But,I have a 2 meter ham rig that can use up those amp hours quick.
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Old 06-25-2012, 09:09 PM   #6
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Personally dont know why anyone would need to really. I do a lot of camping off the grid and one tank lasts me a number of weeks - even with running my hot water tank, fridge and stove off of it most of the time. Have only on 27 battery and a very small solar.
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Old 06-25-2012, 10:07 PM   #7
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Personally dont know why anyone would need to really. I do a lot of camping off the grid and one tank lasts me a number of weeks - even with running my hot water tank, fridge and stove off of it most of the time. Have only on 27 battery and a very small solar.
Do you have LPG or AC/DC fridge? I would think that for cold nights and AC/DC fridge 2 batteries would be necessary.
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Old 06-25-2012, 11:04 PM   #8
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When boon docking I only run the fridge on propane so no drain on the battery and on cold nights I normally only run the furnace as really needed - just before bed and in the morning as needed - if its the middle of winter I set the furnace as low as it goes so it only kicks in a few times in the night. Have never had the battery below 50% with just one battery - the solar takes care of it the next day. If its extreme cold weather ie close to freezing, then I would be looking for power as the furnace would indeed drain the battery pretty fast.
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Old 06-25-2012, 11:10 PM   #9
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When boon docking I only run the fridge on propane so no drain on the battery and on cold nights I normally only run the furnace as really needed - just before bed and in the morning as needed - if its the middle of winter I set it the furnace as low as it goes so it only kicks in a few times in the night. Have never had the battery below 50% with just one battery - the solar takes care of it the next day. If its extreme cold weather ie close to freezing, then I would be looking for power as the furnace would indeed drain the battery pretty fast.

I did have the battery run down once. I was in Big Bend TX and outside temps dropped to the teens F then to 5. I thought I had one more day before needing to drag out the solar panel. It almost to the 4th day after the last charging day. If I'd drug out the solar panel a day earlier, no problem. Now for propane I had to fill the tank early because the guy that does the propane stuff was going to be gone for 3 days. The closest place, other than the little store in the park was 135 miles away.
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Old 06-25-2012, 11:12 PM   #10
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My 50w solar panel mounted flat on the roof and a deep cycle group 27 battery has never let me down. Even when at temps down into the freezing range and setting my furnace a 55.
I can't remember when the last time I camped with any hookups.
Most of my camping is in the high Sierra fire safe areas.
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Old 06-26-2012, 03:12 AM   #11
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I have a 13' Scamp, Group 27 battery and a 100 watt solar panel. We mostly camp off the grid, have 12 volt only refrigerator, propane stove, furnace & water heater heater. We only use the furnace prior to going to bed and before getting up. The propane lasted months, and we have never run the battery down except for at the Quartzsite Az. rally. I had left the converter/charger plugged in for a couple of months prior to this trip, and the fluid had "boiled out" of the battery. Fortunately a couple of very helpful people helped us out with (a new to us) battery, and a recharge from a quiet Honda generator (this was before I purchased a solar panel).
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Old 06-26-2012, 07:49 AM   #12
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Group 4 deep cycle 6v golf cart batts weigh 62 lbs each. With them as far back as possible next to the body each might put 50 lbs on the tongue. A pair gives 220 ah capacity at 12 v.
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Old 06-26-2012, 08:42 AM   #13
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Here's 2 6V and 2 tanks on my Trillium.Click image for larger version

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Old 06-26-2012, 11:59 AM   #14
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Thanks, keep em coming

Wow, thanks everyone for the feedback, and scott and P-Raz thanks for the Pix and links.

This is really helpfull informaiton.

And to provide a little more info for my needs:

I would like to go a full 7-9 days with no hookups. I have a Dometic 211 3-way fridge, works good on propane and have no idea how much 12V juice it will need, hopefully wont need it other than for towing purposes (I have heard that a flame will not stay lit when towing). Also I am converting my interior lighting to 12V, most likely LED so it will use less draw, and I am installing a Fantastic fan, which may run lots.

Currently I am looking for a heater (PO took it out) and I believe they are fan driven as well.

So hopefully the draw will not be a lot.

I have read several places that 2 6 volts can draw lower than 1 12V, but from what everyone has posted, I may be able to get away with 1 12 V.

Input????

thanks!!!!
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