400 Watt DC to AC Power Inverter with Digital Display
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Digital 400 Watt DC AC Power Inverter Overview
The 400 Watt DC to AC Inverter with Digital Display allows products needing AC power up to 400 watts to be powered from a DC source. A set of battery clips is included to connect directly to a battery or the included cigarette-outlet style cable may be used to plug into other DC outlets. The inverter features a digital display, power button, and two AC power outlets.
The 400 Watt DC to AC inverter with Digital Display includes the following features:
- Low Battery Alarm
- Low Voltage Shutdown
- High Voltage Shutdown
- Overload Shutdown
- Overheating Shutdown
- Short-circuit Protection
This Product Includes...
- Cigarette Lighter Style Cord
- Battery Clips Cord
Length of Cigarette-adapter cord: 40"
Length of Battery Clips cord: 40"
Dimensions of inverter alone: 6.5" x 4" x 2"
Weight of inverter alone: 15.52 oz.
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The fan may operate momentarily when the inverter is turned on. The ventilation openings should not be obstructed or covered at any time while the inverter is in use.
Use With ResMed S7 and S8 Machines: This 400 Watt inverter is suitable to power a S7 or S8 series machine without humidifier.
We include information about the power needs and capacities on the CPAP.com pages 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.
Here is a video explaining differences in power cords and power supplies of various CPAP machines:
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.
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.
Here is a video describing different DC cable and battery options for various machines:
All machines can connect to DC power. Some machines are configured to operate on DC Power and have a DC power outlet. Other machines require AC power and will need an Inverter that turns DC power to AC power.
Having the proper equipment is the biggest key to successfully operating the machine from a battery. For example, if your machine does have a DC outlet and you want to run your machine from a marine battery, be sure to get the correct DC cable for the machine, as well as an adapter cable with alligator clips that fits over the cigarette lighter plug.
CPAP.com sells complete battery kits with everything you need for many machines including the correct cables for those machines and batteries. If you have questions about the specific power needs of your machine, review the 'Power' tab found on the machine's product page, or give us a call at 1-800-356-5221.
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 correct 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.
Some machines have batteries created to be used specifically with them only. Here are some of the machines we carry with integrated or specialized battery options:
Transcend EZEX miniCPAP™ Machine
Z1 Travel CPAP Machine
Transcend Auto miniCPAP™ Machine with EZEX
Z1 Auto Travel CPAP Machine
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.
Works as advertised