This cable is used with the Puritan Bennett 420 Series CPAP Machines. The cord allows you to connect to a socket similar to a car's cigarette lighter outlet. One end connects to the back of the CPAP and the other end fits into a 12v DC power point.
This cord is compatible with the following machines:
420G
420S
420E
This cable will not work with the GoodKnight 425 or 425 ST. The 12 volt jack on the 425 Bilevel is not the same size as the 420 series CPAP machines. To connect a 425 BiLevel to a socket similar to a car's cigarette lighter outlet, use the 12 Volt DC Power Cord.
Return On Warranty Issues Only
Specifications
Product Specifications
The cord is approx 16 ft.
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Important Tips
If you wish to run directly off the battery terminals, you will need this cable and the 12 volt Battery Adapter Cable, which has battery clamps on one end.
"The connector does what it's supposed to. Long cord. Machine takes about a minute to get up to speed. Great in an SUV."
Exact Replacement for Damaged Item
Pamela W, Port Arthur, TX – March 03, 2009
"I bought a Respironics Battery Kit for a family members BiPAP from another Internet supplier. Somehow, the 12 VDC cigarette lighter socket was damaged or stopped working during a recent use. I sought replacement from the same supplier and found the price to be comparatively too high. While searching for other Internet suppliers I found CPAP.com carried the replacement at a lower and fair price. I also found the shipping response to be excellent."
If you have to sleep in a vehicle
Dennis W, Tallahassee, FL – September 05, 2008
"If you have to sleep in a vehicle, then this is a must have. Works great."
Great Idea
Rick B, Union, IA – August 12, 2008
"I have always wanted more portability in my cpap. Had an occasion to try it out. Was very pleased and surprised at how little it drew on the battery over night. HIGHLY RECOMMEND!!"
Love this Option!
Linda T, ELKTON, MD – June 06, 2008
"I haven't had the opportunity to use the DC plug yet, but it certainly is a great convenience for those of us who drive long distances and need to sleep why hubby takes over the wheel. I have become dependant on my CPAP over the years, not being able to sleep without it. This will also allow me to sleep on our boat when there is no regular power source, as well as our travel trailer. I am very happy to have this option and plan on purchasing a battery pack for it too, at a later time."
Most CPAP and BiLevel machines today are designed to operate on both AC and DC battery currents. In the United States, the AC current from wall outlets is 110 volt and most batteries produce 12 volt DC current. Overseas, the AC current is usually 220 or 240 volt.
We include information about the power needs and capacities in the description of our products. Please see the "Power" tab on any machine product page for this information. You can also see a summary of the voltage range and whether it is DC capable on our Compare Charts.
Will my CPAP operate on DC / battery power?
All CPAPs will operate on DC power with the use of an inverter to change the current from DC to AC before it reaches the machine. However, many will operate on DC power without the need for an inverter, just a power cord that plugs into the CPAP and ends in a cigarette lighter plug.
Inverters do require a lot of power. If you need to use an inverter to run your machine on battery power, the inverter will probably take about half the life off the battery.
To determine if your CPAP will operate without an inverter, look for a DC outlet on the machine, either at the back or on the side, with a single opening directly in the center. It should be labeled "DC Power" or similar term. You can also review our Compare Charts to see if your machine has a optional DC cable option.
Will my CPAP operate overseas?
An adapter may be required to plug a US power cord into a wall outlet in a foreign country. CPAP.com sells an assortment pack of World Traveler Power Adapter Plugs, which allow CPAP machines to plug into different types of wall sockets found in different countries.
All the models CPAP.com sell contain power converters that enable the machine to operate on any AC current from 100 to 240 volts without any adjustment. Check with your dealer or manufacturer to see if your machine needs an external converter that lowers the voltage from 240 to 120 VAC.
How do I use a battery to operate my CPAP?
First you need to determine if your machine is configured to operate on DC power and has a DC power outlet. If your machine does have a DC power outlet and you want to run your marine battery, then you will need the correct DC cable for your machine and an adapter cable that fits over the cigarette lighter plug and ends in alligator clips.
CPAP.com sells complete battery kits with everything you need for your machine including the right cables for your machine and the battery. You can find the right battery kit for your machine here.
If your machine does not have a DC power outlet, then you will also need an inverter to be able to run your machine on battery power.
If you have questions about the specific power needs of your machine, review the "Power" tab on your machine's product page, or give us a call at 1-800-356-5221.
What type of battery should I use?
For longer battery use, we suggest a deep-cycle marine battery. A CPAP set at 10cm will usually run for about three nights before having to recharge a deep cycle marine battery. A car battery will usually run a machine for 8 hours and still start the car.
There are small, portable battery packs that will operate a CPAP set at 10cm for at least one night, or about eight hours. CPAP.com sells full battery kits that come with everything needed to run your machine off battery power including the right cables needed for your machine and a battery. You can find the battery kit for your machine here. On each battery kit page, you can input your machine and pressure setting to see an estimate battery life for your machine.
How do I prepare for power outages with CPAP?
There are a lot of back up battery choices out there that can give you peace of mind in case of a power outage. Some machines offer the option of an integrated battery which will automatically fail over to battery power if the power goes out.
CPAP.com sells battery packs to accompany your machine if an integrated battery is not available. Visit CPAPtalk for more advice specific to your needs, or view this past thread on the topic here.