The Pilot Flex battery is compatible with CPAP machines from ResMed, Philips Respironics, Apex, and Löwenstein. Models include AirMini, AirSense 10/11, DreamStation 1/2, System One S60, Apex iCH, and Löwenstein Prisma SMART. Note: Extra cables are required for most machines, except the AirMini, which includes its cable kit.