This DC adapter kit connects Medistrom CPAP Pilot-24 Lite battery to ResMed S9 Series CPAP. The 19-inche ouput cable is to power the S9 CPAP when connects to the Pilot-24 Lite battery. It is clearly labeled as "Cable for ResMed S9 Series". The 7-inch charging adapter cable is for re-charging the Pilot-24 Lite with the S9 CPAP's AC power cord.
The cable kit is compatible with ResMed S9 Series CPAP or VPAP machine.