Portable Outlet X9 CPAP Battery BackupLosing power overnight should not mean losing your therapy. The Portable Outlet X9 sits between the wall and your machine as an inline backup: plug your CPAP or BiPAP into the X9, keep it plugged into the wall, and if the power cuts out it switches to battery on its own, so your airflow never stops. No adapters, no extra cables, no setup. Because it puts out standard household AC power as a clean pure sine wave, it runs essentially any CPAP or BiPAP,