Founder and editor

Max

Max sleeps with a CPAP machine every night — a ResMed AirSense 11 with a full face mask. That's worth saying first, because it changes what kind of site this is. When a storm knocks the power out, the question "how long will the battery last?" isn't editorial curiosity for him; it's the difference between sleeping through the night and sitting up at 3 a.m. waiting for the lights to come back. CPAP Backup Battery is the planning resource he wanted as a user: one that shows the math instead of asking you to trust a headline.

The other half of the background is professional. Max has spent more than twenty years in IT and operations, where power budgets and capacity planning are routine work — sizing loads, planning reserve headroom, and keeping equipment running around the clock. Sizing a backup battery for a medical device at home turns out to be the same discipline at a smaller scale: find the real draw, add the losses, leave a margin, and write the assumptions down. That's the method behind every runtime model on this site.

How the work is done

Manufacturer and regulator documents are the starting point for every figure — spec sheets, manuals, compatibility tables, airline rules. Sourced calculations are labeled as calculations, with the assumptions exposed so you can check them against your own setup. Hands-on observations are described only when the test setup and retained evidence actually exist, and being a nightly user doesn't loosen that rule: Max's own experience shapes which questions the site asks, but the answers still come from documentation that can be traced. The full standard lives in the editorial policy.

Where the limits are

Max is not a doctor, a respiratory therapist, or a licensed electrician, and nothing on this site is medical advice. CPAP Backup Battery covers backup-power planning and product documentation — the electrical side of keeping therapy running. Treatment and device-operation decisions remain with the manufacturer's instructions and your care team.