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Old 06-23-2014, 09:31 PM   #1
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Operating slides on battery power?

My 2013 Bay Star manual says to be on shore power or generator power when operating thr slides. I have two Trojan T105 6volt house batteries (wired for 12v of course). Would operating the slides on battery power exceed their capacity?

I'm curious as to what I'd do when dry camping if for some reason the generator wouldn't start.


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Old 06-23-2014, 09:39 PM   #2
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My manual says to have the engine running when activating the slides to minimize the load on the house batteries. I don't always do that and it works fine but is a big drain on the batteries. I wouldn't expect any lasting damage , just a big drain of power which will need to be replaced soon. It's also possible that, if your batteries are a bit weak, you might not get the extend/retract completed.

Hopefully, someone familiar with your particular coach will chime in soon, but I suspect the situation will be similar to mine.

Good luck.


Rick, Nancy, Peanut & Lola our Westie Dogs & Bailey the Sheltie.

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Old 06-23-2014, 09:42 PM   #3
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Not sure of the exact reasoning, for the rec-commendation, your two batteries should handle the load ; but; if dry camping the high current draw at the beginning of your stay could seriously shorten the length of time you have 12v power.
If you coach is equipped with a boost/emergency start switch , that should work to start the gen set from the chassis batteries.
If all else fails , old school, jumper cables from the toad.
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Old 06-23-2014, 10:01 PM   #4
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On my Canyon Star the slides will not operate if the engine is running as a safety feature. You can run the slides in/out no problem on the batteries alone. It is always best to do it on shore power or generator power, but if you had to the batteries will handle it. I was at the dealership this weekend getting some minor warranty stuff taken care of and the Newmar mechanic answered several questions re how the different things function, and he had me run the slides in/out on battery power and they worked fine.
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Old 06-23-2014, 11:03 PM   #5
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We have run our slides on battery's most of the time. As a matter of reference they are 12 volt motors so when attached to shore power the batts are still providing the juice.
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Old 06-24-2014, 07:07 AM   #6
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When you are on shore power or Gen the slide motors are operating from the 12v converter which is charging your batteries.
If your batteries are with low charge after dry camping you need to start your engine and get your Gen operating than operate your slides the Gen will be supplying power to your converter.
The slide motors need a good clean 12v's for best operation.
Newmar slide spec found in QT's 1 & 2.
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Old 06-24-2014, 10:59 AM   #7
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Your slides will work fine on the batteries, but they work better and more consistently on shore power or generator. As said, if your batteries are low from use such as dry camping, you could cause issues if they don't have the power to push or pull the slides in at full charge. They're just like us, buy the end of the day they're slowing down!
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Old 06-25-2014, 06:09 AM   #8
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Hi Camper Ken,
The information provided has been good. Consider contacting Newmar and asking if the slides receive power from the chassis or coach batteries. The answer will provide the logic for having the engine, generator or shore power available when moving the slides.

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battery, power, slide

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