Recent content by Roy Webster

  1. R

    Using a 12 volt to 24 volt DC converter from a 12 volt accessory socket.

    Apologies for the long delay in replying - I couldn't find the email link to this post. Both of your estimates of usage were pretty much spot on. I used the cpap for 7 nights and the usage was between 25% and 30% (depending on how long I slept each night). Thank you again as I can now use my...
  2. R

    Using a 12 volt to 24 volt DC converter from a 12 volt accessory socket.

    Thanks for the info Lucien. I think that your estimate of CPAP/humidifier usage wouldn't be far off. I would only be running the CPAP off the 440Ah plus the fresh water pump and lighting (even though we are all LEDs we are still in the habit of only using lights sparingly}. The fridge is...
  3. R

    Using a 12 volt to 24 volt DC converter from a 12 volt accessory socket.

    Hi Richard, I've spoken to the guy who installed the socket and it is fused at 10A so hopefully it will handle my set up. I will be on the boat next week so I will let you know how I go on when I return.
  4. R

    Using a 12 volt to 24 volt DC converter from a 12 volt accessory socket.

    Thanks again Richard. I will look into the Hella plugs and let you know how I go on.
  5. R

    Using a 12 volt to 24 volt DC converter from a 12 volt accessory socket.

    We have a 55 hp engine with 2 x 110 watt alternators charging through a combined Sterling (I think) charger/battery management system, which automatically switches to charging from shore power if we can get a hook up. We have a 230 volt ring which is activated on external hook up. We have 8...
  6. R

    Using a 12 volt to 24 volt DC converter from a 12 volt accessory socket.

    Hello Richard, thank your for your welcome and your prompt reply. Below is some information I have just received from another user of the same CPAP as myself: On the ResMed Airsense 10. It sits at about 2-5W on standby (varies I think due to the cellular modem* handshaking on occasion) and runs...
  7. R

    Using a 12 volt to 24 volt DC converter from a 12 volt accessory socket.

    Hello all. I am looking for some info re a DC to DC converter. I have a part share in a narrowboat and also have sleep apnoea for which I use a CPAP machine while sleeping. In the past it hasn't been a problem as my previous machine was rated 40 watts at 23o volts for which I used a 300 watt...

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