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02-20-2021, 12:58 PM
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#1
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Weekend Camper
Join Date: Sep 2013
Location: Richmond MI
Posts: 71
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Temporary Battery Power In Winter
I store my trailer in a storage lot and don't have access to electricity. I like to mess with the trailer over the winter, but take my batteries out. What I've done is bought a 7-way jack and hooked it to a small deep cycle battery, which only weighs maybe 20lbs. at most. I can take that to the trailer and plug the trailer into this setup and I have lights and heat (propane is still attached). With this small battery I only get about 2 hours max. If I need all day power I can take one of the big (70lb) batteries instead, but those are rough on my back.
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Jim Hanus
2006 18ft. Zinger
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02-20-2021, 01:23 PM
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#2
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Gone Traveling
Join Date: Feb 2016
Location: Texas
Posts: 1,392
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Or use a set of jumper cables from your running vehicle connected to the rv batteries. I think jumper cables would be even better on your back than the 20lb battery.
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02-20-2021, 01:24 PM
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#3
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Site Team
Join Date: Jun 2015
Location: mo
Posts: 2,106
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That's a good fix for temporary power.
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2009 Seville VF32KS
2019 GMC Sierra 3500HD Crew Cab Denali.
6.6 Diesel standard box.
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02-20-2021, 02:18 PM
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#4
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Site Team
Join Date: Dec 2007
Location: WI.
Posts: 9,160
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That's a slick setup.
You have your RV batteries at home more then likely, and this setup gives you a short fix for your cabin fever on occasion.
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02-20-2021, 02:27 PM
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#5
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Weekend Camper
Join Date: Apr 2019
Location: Alberta
Posts: 37
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This may be a dumb question (yes I know there is no such thing) but if the RV batteries are removed, can you not just hook your tow vehicle up to the RV power cord and have 12 volt power supplied to the trailer that way?
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2019 Cruiser Aire 29SI 5th Wheel - Sold
2021 Grand Design Imagine XLS 22MLE - Current RV
2018 Ram 2500HD, 6.7 L Cummins Turbo Diesel 4X4
"The smallest act of kindness trumps the greatest of intentions"
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02-20-2021, 02:43 PM
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#6
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Site Team
Join Date: Dec 2007
Location: WI.
Posts: 9,160
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Quote:
Originally Posted by divey
This may be a dumb question (yes I know there is no such thing) but if the RV batteries are removed, can you not just hook your tow vehicle up to the RV power cord and have 12 volt power supplied to the trailer that way?
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I've never tried that. I would think the lite gauge wire between the truck and the trailer might be a problem. It would probably run lights, but I can't believe you could run very much.
Maybe somebody else has had some experience trying that.
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02-20-2021, 03:15 PM
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#7
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Site Team
Join Date: Jun 2015
Location: mo
Posts: 2,106
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Not sure what tow vehicle he has but on my GMC there is no power to the plug unless the motor is running. But with a dead camper battery i have plugged in and had enough power to run the landing gear to hitch up.
__________________
2009 Seville VF32KS
2019 GMC Sierra 3500HD Crew Cab Denali.
6.6 Diesel standard box.
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02-20-2021, 03:19 PM
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#8
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Gone Traveling
Join Date: Feb 2016
Location: Texas
Posts: 1,392
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Jumper cables from the vehicle connected to the rv battery cables will allow power to the rv, just be sure to leave your vehicle running. Using the umbilical cord connected to the vehicle probably won't give enough except to possibly run the lights, but not likely the slides.
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02-20-2021, 04:01 PM
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#9
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Seasonal Camper
Join Date: Feb 2017
Location: Michigan
Posts: 272
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Jim, that's a clever idea. Looks pretty handy too.
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2016 F 250 XLT 4x4 SC
2014 Sunset Trail Reserve ST26RB
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02-20-2021, 05:26 PM
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#10
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Weekend Camper
Join Date: Sep 2013
Location: Richmond MI
Posts: 71
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Quote:
Originally Posted by travelin texans
Or use a set of jumper cables from your running vehicle connected to the rv batteries. I think jumper cables would be even better on your back than the 20lb battery.
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I wouldn't leave my truck sitting and idling for that long. If I chose to, I could just plug the trailer into the truck.
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Jim Hanus
2006 18ft. Zinger
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02-20-2021, 05:28 PM
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#11
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Weekend Camper
Join Date: Sep 2013
Location: Richmond MI
Posts: 71
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Quote:
Originally Posted by divey
This may be a dumb question (yes I know there is no such thing) but if the RV batteries are removed, can you not just hook your tow vehicle up to the RV power cord and have 12 volt power supplied to the trailer that way?
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Yes you could, but I wouldn't want to keep my truck running for several hours at a time. It's just the way I chose to do it.
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Jim Hanus
2006 18ft. Zinger
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02-20-2021, 05:40 PM
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#12
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Weekend Camper
Join Date: Sep 2013
Location: Richmond MI
Posts: 71
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Just to clarify a few things: I did weigh the small battery and it's 11lbs.
The trailer is a small 18' with no slides. The wire is a short run of 10ga and I can safely put 20A through it. With my interior LED lights and the furnace running it only draws 10A. Like I mentioned, if I was spending an entire day in it I would just take one of the big batteries (125AH group 31). If the small battery ran out I could just hook it up in the trailer and plug it the truck to give it a boost.
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Jim Hanus
2006 18ft. Zinger
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02-20-2021, 05:49 PM
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#13
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Site Team
Join Date: Jun 2015
Location: mo
Posts: 2,106
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Sounds like you have a GOOD plan that works for you.
__________________
2009 Seville VF32KS
2019 GMC Sierra 3500HD Crew Cab Denali.
6.6 Diesel standard box.
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02-20-2021, 06:13 PM
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#14
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Weekend Camper
Join Date: Sep 2013
Location: Richmond MI
Posts: 71
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Quote:
Originally Posted by dagst1
Sounds like you have a GOOD plan that works for you.
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Thanks!
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Jim Hanus
2006 18ft. Zinger
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02-20-2021, 08:41 PM
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#15
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Full Time Camper
Join Date: May 2012
Location: N.C. Mountains
Posts: 2,416
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Never seen that done, but looks like it would work for a short period of time. Do you remove the batteries due to possible theft or for what reason. Have you put a battery shut off switch on the batteries. That way it will disconnect the batteries and keep them from being drained and you don’t have to remove them. Here’s the one I purchased from Camping World and installed on mine.
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*2016 CAF25SE Cruiser Aire 5er. *2020 Chevrolet 2500 HD Custom
*Ted & Tricia (Mimi - Teacup Poodle/ Sailor - Maltipoo)
*I have tried to live my life so that my family would love me and my friends would respect me. The others can do whatever the Hell they please!” —John Wayne
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02-21-2021, 06:18 AM
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#16
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Weekend Camper
Join Date: Sep 2013
Location: Richmond MI
Posts: 71
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Quote:
Originally Posted by Papa-T
Never seen that done, but looks like it would work for a short period of time. Do you remove the batteries due to possible theft or for what reason. Have you put a battery shut off switch on the batteries. That way it will disconnect the batteries and keep them from being drained and you don’t have to remove them. Here’s the one I purchased from Camping World and installed on mine.
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I do have an A-B cutoff switch, but I'm in Michigan and don't use the trailer for 6 months of the year, so I take the batteries home and keep them on a trickle charger.
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Jim Hanus
2006 18ft. Zinger
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