CPAP Battery & Power Options
CPAP batteries, DC converters, power supplies, and charging accessories for ResMed, Philips Respironics, Fisher & Paykel, Lowenstein, BMC, and Sefam machines. Select your machine from the tiles below to filter compatible products, or browse the full range. Before purchasing, check our battery compatibility guides to confirm which voltage and cable your machine requires.
If you are not sure what the name or part number is, we have a range of different options to help you find the correct part. You can search by category, filter by brand or use our parts finder (above). If you still need help, you can even upload a picture of your CPAP machine or existing battery for assistance with identification.
Power and Battery Options
View Manufacturer Battery Guides
Lowenstein Prisma Power Supply Unit for SMART, SOFT & SOMNO Series
SKU: LOW24480
$115.00
Medistrom Pilot 24 Lite Battery with Charging Cables
SKU: Pilot24BatKit
$499.00
Medistrom Sefam S.Box / BMC M1 Mini Cable Kit for Pilot-24 Lite Battery
SKU: Pilot24AMIPLK
$15.00
CPAP Battery & Power Guide
Does my CPAP machine run on 12V or 24V?
It depends on the machine. Most ResMed machines — including the AirSense 10 and AirSense 11 — run on 24V DC. The ResMed AirMini runs on 12V. Philips DreamStation machines are also 24V. BMC machines vary by model, and Lowenstein Prisma machines typically require a specific DC adapter. Running a machine at the wrong voltage can damage it, so confirming before purchase is essential. The machine tile filters above will narrow the range to products confirmed compatible with your specific model, and our battery guides provide detailed voltage information for each supported machine.
What's the difference between a CPAP battery and a DC converter?
A CPAP battery — like the Medistrom Pilot-24 Lite or Pilot FLEX — is a self-contained portable power unit that stores charge and powers your machine independently of any external power source. It's the right choice for camping, remote travel, or power outage preparedness. A DC converter, on the other hand, doesn't store power — it adapts 12V DC from an existing source (a car, caravan, boat, or campsite power outlet) to the voltage your CPAP machine needs. If you already have a reliable 12V DC power source available, a DC converter is typically a more compact and affordable solution. If you need completely off-grid capability, a battery is the appropriate choice.
How long will a CPAP battery last for one night?
For powerbank-style batteries like the Medistrom Pilot range, you will need to turn off humidification and heated tubing to reliably get through a full night. Humidification draws close to ten times the power of a CPAP machine running without it — with humidification active, most batteries will not last a full night's sleep. With humidification and heating off, a Medistrom Pilot-24 Lite will typically deliver one to two full nights depending on your pressure setting and machine model. This is an important consideration before purchasing: if you rely on humidification for comfort, a battery setup may take some adjustment. For tips on configuring your machine for off-grid use, see our guide on travelling with your CPAP.
