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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...
fitznj's avatar
fitznj
Explorer
Feb 24, 2015
Most AC/DC inverters have circuitry built in that switches them off when they detect a low battery voltage. Which means that you can't run the inverter too long without having to recharge the battery again (kind of defeats the object....).

I've never been successful in running an inverter for longer periods of time (even a low wattage TV). They work well in a car/van/truck which has the engine running and charging the battery - again, sort of defeats the object.

f

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