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djbroughton's avatar
djbroughton
Explorer
Feb 23, 2015

Trying to use small inverter through cig. lighter adapter

I am trying to run my CPAP machine from a light fixture above the bed instead of through the main inverter. I wired a 12 v cigarette lighter outlet into the fixture. The voltage reads 12.5 v and I can...
djbroughton's avatar
djbroughton
Explorer
Feb 24, 2015
BTPO1 wrote:
It may be possible for you to use a 12 volt cord to run your CPAP machine. Mine runs on 12 VDC. When plugging in on 120 VAC it transforms to 12 VDC. If yours is 12 VDC then you would not need an inverter to run it. JMO


See that sounds good but my machine is a Resmed S9 (Australian manufacturer) and the 90 W adapter says DC output is 24 V. Regardless, for the 2 prong DC cord that goes into the adapter I would still need a matching 2 prong female connector. Where would that come from?

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