Designed for the ResMed VPAP III models to operate from a 12/24 Vdc power source. The converter has a 12 volt DC power input which enables it to run from a 12 volt or 24 volt battery using a ResMed converter.
Why use a converter?
* The converter is more efficient than an inverter.
* The converter provides electrical protection to the CPAP device in the event that the adapter leads are connected incorrectly to the battery.
* The converter provides regulation of the battery voltage: a fully charged battery has a terminal voltage of 13.5 volts and will reduce as the battery is discharged.
* The converter will shutdown automatically when the voltage drops below 10.5 volts for a 12 volt battery, or 21 volts for a 24 volt battery. This will protect the battery from damage due to being allowed to fully discharge.
* The converter provides electrical isolation to the CPAP device
