Use the 150W Sine Wave Power Inverter in conjunction with the Freedom CPAP Battery to power the many compatible CPAP devices (listed below).

This inverter has other uses too; use it with the Freedom battery to charge other electronic devices that do not have a USB cable, use it to charge other batteries, you can also use it to charge the Freedom CPAP Battery in a vehicle and with this method (as opposed to the Auto Charge DC Cable) the vehicle does not necessarily need to be running during the charging process.