Fridge on Battery while towing? - Escape Trailer Owners Community

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Old 05-04-2016, 05:01 PM   #1
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Fridge on Battery while towing?

Somewhere I saw a suggestion to put fridge on battery when towing to keep it cold, but how much risk it there of it draining my car battery? Another veteran said not to do so for such risk.
I tow with Lexus RX400 hybrid SUV.
Thanks, oh sage veterans
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Old 05-04-2016, 05:21 PM   #2
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Somewhere I saw a suggestion to put fridge on battery when towing to keep it cold, but how much risk it there of it draining my car battery? Another veteran said not to do so for such risk.
I tow with Lexus RX400 hybrid SUV.
Thanks, oh sage veterans
As long at the vehicle alternator is running, there is little likelihood of killing the auto battery. If you stop for lunch, etc be sure you either unplug the trailer 7 pin connector or that your tow vehicle has a solenoid that disconnects the charge line when the ignition is off.

Depending on the size of the charge line, whether you have solar or not, and the length of tow, you MAY deplete the trailer battery...
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Old 05-04-2016, 05:32 PM   #3
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Jon -Thank you, very helpful.
I will unplug when I turn off vehicle; is that enough or should I also unselect battery on fridge? On trailer battery depletion - no solar panel, tow a 13B, my travel day is relatively short - max 300 miles. Assuming I would hook up to electricity after 300 miles - what do you think? And, is your answer different if I can only switch fridge to propane with no electric hookup to keep battery charged?
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Old 05-04-2016, 06:05 PM   #4
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Is there a reason Escape Trailers should not be run on propane while towing?
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Old 05-04-2016, 06:20 PM   #5
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Is there a reason Escape Trailers should not be run on propane while towing?

Some believe the potential risk of fire/explosion is increased with propane use while underway. Others judge the risk to be small.

Your call.
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Old 05-04-2016, 06:23 PM   #6
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Some believe the potential risk of fire/explosion is increased with propane use while underway. Others judge the risk to be small.

Your call.
Whew! Thanks! I was worried there was perhaps something different about Escapes. Thanks again for the clarification.
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Old 05-04-2016, 06:30 PM   #7
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The trick is... when you are stopped, with no tug power going to your trailer... is to keep an eye on your trailer battery (or batteries if you get dual 6v)

be sure to turn the fridge OFF momentarily to get a somewhat more accurate reading of how the trailer batteries are really doing.

I know the Escape has a basic battery charge meter built in.... i myself like this 12v $12 one for knowing really what is going on...

Robot Check

you'll also need a battery voltage chart as well. Internet has many images that show...

just my 2c.

also .... it is my understanding that .... once the trailer battery is more than about 1/2 way discharged... it takes quite a lot of energy to get it back to 100%

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Old 05-04-2016, 06:38 PM   #8
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Others judge the risk to be small.

Your call.
Yup, turn on the fridge before we leave home, turn off a month or so later, except if we have to shut it off while on a ferry.

Ron
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Old 05-04-2016, 06:43 PM   #9
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...it is my understanding that .... once the trailer battery is more than about 1/2 way discharged... it takes quite a lot of energy to get it back to 100%

It's not so much that it takes more energy to get it back to a full charge when it's deeply discharged, but that it can reduce the number of recharge cycles. It's a deep cycle battery, which can "handle" deep discharging better than a non deep cycle can. But, repeated discharging below 50% capacity can shorten the battery's lifespan.
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Old 05-04-2016, 07:38 PM   #10
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If you wish to keep the refrigerator running during a stop, switch it to propane. In my case the only choices I have are 120V or propane, so I travel with it running on gas.

300 miles at my speed would be a 6 - 7 hour drive; more than I usually do, and I'd probably want some cooling while driving that long. If you find that running the refrigerator on 12V runs the battery in the trailer down, I'd run it on propane, particularly if you plan to dry camp that evening.
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