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Old 09-13-2017, 07:35 AM   #1
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Cpac

Will a Cpac machine last all night on two twelve volt batteries? Thanks in advance.
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Old 09-13-2017, 07:47 AM   #2
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Yes it will. I turn off my humidifier which drops the power consumption tremendously. I used to go all night with 4 batteries...and also my 22 cuft residential reefer.

You should be fine.
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Old 09-13-2017, 08:00 AM   #3
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Heat Pad on/off will make a difference! Youroo!!
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Old 09-13-2017, 08:40 AM   #4
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Results of my test

http://www.forestriverforums.com/for...ap-141482.html
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Old 09-13-2017, 10:22 AM   #5
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I've ran a CPAP on a regular car battery with humidifier overnight. The car battery dies part way into the second night- so make sure you recharge it.

On a real deep cycle battery, you'll get better performance.

And, as mentioned- if you can turn off the humidifier, that uses like 2-3x the energy.
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