| [GMCnet] Re: need a cheap quiet inverter to run a CPAP [message #364893 is a reply to message #364892] |
Tue, 22 June 2021 11:21   |
GMC.LES
Messages: 505
Registered: April 2014
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Many of the CPAP machines run on DC power, and use a power supply to convert household power to the required DC voltage. My Philips CPAP has a special 12VDC power cable that was quite reasonable to purchase.
Since some electronics do not play well with modified syne inverters, I suggest you consider the 12v direct option if it’s available. it eliminates the unnecessary additional power drain of an inverter running all night, and risk of damage to the medical device(CPAP) from modified syne is eliminated.
Les Burt
Montreal
'75 Eleganza 26'
> On Jun 22, 2021, at 12:14 PM, patrick@gmcmotorhome.com wrote:
>
> I have a 200W Harbor Freight inverter that I keep around for power outages to run my CPAP. Their web site shows it on "Clearance"
>
> https://www.harborfreight.com/200-watt-continuous-power-inverter-66967.html
>
>> On 2021-06-22 12:01, dave silva wrote:
>> Going camping with the scouts for a week, one of the other leaders
>> needs his CPAP to run. There is no AC power as far as i know but i
>> have a bunch
>> of gel cells- about 500 amps worth.
>> The CPAP draws 90 watts so theoretically i should be able get him
>> through four nights.
>> So i'm in the market for an inverter. So many choices. I could
>> probably get by with 300watts but i'd prefer to have a bigger one for
>> future use. i'm
>> looking for one that either does not have a fan or only runs the fan
>> as needed.
>> I have a nice 500 watt Vector but the fan runs constantly, it's
>> annoyingly loud and it can't be very efficient.
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