CPAP Battery Guide is an independent review site focused on one narrow question: which portable power station is the right one to keep your CPAP running when the wall outlet isn't an option? Home power outages, road trips, off-grid cabins, hospital stays — the answer changes with humidifier setting, pressure level, charger efficiency, and the inverter idle draw of the battery itself.

We are a small, independent operation. We do not represent any battery manufacturer, CPAP brand, or DME (durable medical equipment) supplier. We are not a medical authority and nothing on this site is medical advice — talk to your sleep specialist about your specific therapy needs.

What we cover

The site is structured around three content types:

• Guides — explainers for the underlying questions: how to measure your CPAP's real wattage, what the humidifier actually costs in battery hours, FAA travel rules, off-grid solar sizing.
• Comparisons — head-to-head matchups of the most relevant portable power stations and CPAP-specific batteries, scored against the same criteria.
• Product reviews — individual deep-dives on the units we recommend or evaluate, with runtime math, surge handling, and pricing reality.

Editorial standards

Our complete methodology page lists the test rig, the CPAP model and pressure we benchmark against, and what we measure. Until we publish a hands-on test of a specific unit, we say so. Spec-sheet-only assessments are labeled as such.

We do not accept paid placements, sponsored reviews, or "send us a free unit and we'll write about it" arrangements. When a unit is on the site, it earned its spot either through hands-on measurement or because the published manufacturer specs and third-party tests are strong enough to recommend without us touching it.

How we make money

Affiliate commissions, primarily through the Amazon Associates program. When you buy a battery after clicking one of our links, Amazon pays us a small commission at no cost to you. Our full affiliate disclosure spells out the tracking ID and the FTC-required language.

That commission does not change which units we recommend. The Medistrom Pilot-24 Lite, for example, is recommended in several scenarios where Amazon offers no affiliate link at all — we list it because it's the right answer, not because it pays.

Contact

Corrections, questions, and "you got this wrong" emails are welcome via the contact page. We read everything and update pages when we're wrong.