Power Inverters

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Wild Thing
Posts: 5
Joined: Mon Jul 25, 2016 1:13 pm
Location: Torquay, Devon

Power Inverters

Post by Wild Thing » Fri Feb 01, 2019 9:46 pm

Hi Guys.

When I joined, I said I would be asking questions, so here goes another one.

My wife uses a CPAP machine at night and I want to get a power inverter to power the machine in the event of power cuts. I am looking at this one. I know for the price it's not going to be the best in the world, but do you guys think it's a good starting place.

Thanks.

https://www.ebay.co.uk/itm/Car-2000W-40 ... :rk:6:pf:0

Yorkshire Andy
Posts: 3961
Joined: Thu Oct 03, 2013 4:06 pm

Re: Power Inverters

Post by Yorkshire Andy » Fri Feb 01, 2019 10:10 pm

Stop don't buy anything yet ...

What is the power supply like?

Has it got a inline transformer?

You will find a cheap inverter pants .. modified sine wave will wreck sensitive electronics


Can you get a 12v lead for her machine?


Less loss = longer battery life

If the unit uses 12v via a transformer it will be more efficient than stepping up to 240v AC then stepping down

Look here

https://www.eu-pap.co.uk/cpap-sleep-apn ... ables.html
If your roughing it, Your doing it wrong ;)

Lack of planning on your part doesn't make it an emergency on mine

Wild Thing
Posts: 5
Joined: Mon Jul 25, 2016 1:13 pm
Location: Torquay, Devon

Re: Power Inverters

Post by Wild Thing » Fri Feb 01, 2019 10:25 pm

Thanks Andy.

Lots to look at.

Will do it tomorrow.

Thanks again.

Phill.

Yorkshire Andy
Posts: 3961
Joined: Thu Oct 03, 2013 4:06 pm

Re: Power Inverters

Post by Yorkshire Andy » Fri Feb 01, 2019 10:30 pm

No problem..

This conversation came up at work this week our fitter has aponea and caravans
Other option is to get her a backup unit which takes 12v be more reliable

A leisure battery can be charged via solar / wind / jump leads onto the car etc ..

Just seen the sites adapter for a battery £30!!!


https://www.ebay.co.uk/itm/12V-Car-Auxi ... Sw69lblod0
If your roughing it, Your doing it wrong ;)

Lack of planning on your part doesn't make it an emergency on mine

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Arwen Thebard
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Joined: Thu Oct 26, 2017 6:31 pm

Re: Power Inverters

Post by Arwen Thebard » Sat Feb 02, 2019 9:00 am

The depth of knowledge on this site never ceases to amaze me. :)

And its all gained from genuine experience rather than the internet. Awesome.
Arwen The Bard

"What did you learn today?"

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unsure
Posts: 1319
Joined: Sat Jul 21, 2012 11:53 am
Location: st.helens , area 9

Re: Power Inverters

Post by unsure » Sat Feb 02, 2019 9:02 pm

Wild Thing wrote:
Fri Feb 01, 2019 9:46 pm
Hi Guys.

When I joined, I said I would be asking questions, so here goes another one.

My wife uses a CPAP machine at night and I want to get a power inverter to power the machine in the event of power cuts. I am looking at this one. I know for the price it's not going to be the best in the world, but do you guys think it's a good starting place.

Thanks.

https://www.ebay.co.uk/itm/Car-2000W-40 ... :rk:6:pf:0


what cpap machine does your wife have , mines a resmed air sense 10 , this uses a step down on the power and what looks like an old radio lead plug , the two hole type .
you can by a 12volt connection for them .
i was thinking along the lines or buying a spare lead and putting clips on it .
YES i walked away mid sentence , you were boring me to death and my survival instincts kick in .

jansman
Posts: 6970
Joined: Thu Dec 30, 2010 7:16 pm

Re: Power Inverters

Post by jansman » Sat Feb 02, 2019 9:16 pm

Arwen Thebard wrote:
Sat Feb 02, 2019 9:00 am
The depth of knowledge on this site never ceases to amaze me. :)

And its all gained from genuine experience rather than the internet. Awesome.
I think the same.
In three words I can sum up everything I have learned about life: It goes on.

Robert Frost.

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