Powers Your S9 From the Battery
The 19 inch output cable connects the Pilot-24 Lite to your ResMed S9, so you can run the machine on battery power.
Recharges the Battery With Your Own Cord
The 7 inch charging adapter uses your S9's existing AC power cord to recharge the Pilot-24 Lite, so you don't need a separate charger.
Complete Connection Kit
Both cables come together in one kit, so you have what you need to link your battery to your machine.