ResMed S9 and Air 10 series PAP devices operate from 24V direct current and the CPAP Battery operates from 12V direct current; therefore, the use of a 24V power converter is required to power these devices with the CPAP Battery.
The ResMed 24V Power Converter includes the converter box and labeled connection cords to fit S9 and Air 10 series devices.
The simple connection provides a clean, efficient conversion from 12V to 24V direct current allowing you to power your ResMed S9 or Air 10 Series device with the CPAP Battery.