Okay. You've got a 24V CPAP machine. You've got a 12V battery. What's a CPAP user to do? No problem. Just use the DC to DC converter which converts 12V DC to 24V DC to power your 24V AirMini. Problem solved.Note: a battery is not included with this converter. This item is ONLY the DC converter which is required to connect the AirMini to a battery.
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