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Using a Battery Backup for Home to Power Your CPAP Machine

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  1. Introduction
  2. What are Battery Backups?
  3. How do CPAP machines work?
  4. How many watts does a CPAP use?
  5. Can a battery backup power a CPAP?
  6. Will a battery backup power a CPAP through the night?
  7. Other considerations
  8. Conclusion


Whether it's a hurricane knocking out the power lines or regular old blackouts, losing electricity at home can be a huge headache. And if you rely on medical devices that need a constant power supply - like a CPAP machine to help you sleep - an unexpected outage can be downright scary. That's where having a home battery backup comes in.

With batteries and an inverter, you can store extra solar power or run your essential devices during an outage. But can a battery backup system really provide reliable, stable power for a sensitive CPAP machine? Let's dive in and find out!

Battery Backup for Home: Can it Power CPAPs?

What are Battery Backups?

Battery backups provide emergency power to devices when the main power fails. They allow connected devices to keep working for a short time until the main power is restored or a proper shutdown can be performed.

How do CPAP machines work?

The CPAP machine pushes continuous positive air pressure into your airways when you breathe in. This helps keep your airways open so you can breathe easier while you sleep.

Inside the machine are a few main parts:

  1. Blower: The blower uses an electric motor to blow air through the tube that connects to your CPAP mask. The air pressure is continuous and consistent, regulated by the machine.
  2. Humidifier: The humidifier is connected to the blower to increase the moisture levels in the air, thus making it more pleasant to breathe in. This helps prevent drying out your nose and throat.
  3. Filter: There's a filter inside to catch any dust or particles before the air reaches you. This helps keep the machine itself clean too.
  4. Control panel: The control panel lets you adjust settings like air pressure, humidity, alarm volume, and more. A doctor typically programs the correct air pressure for your condition.

How many watts does a CPAP use?

The power requirements for your CPAP machine will differ based on several factors. Most CPAP machines require 30 to 60 watts of power at medium pressure settings between 7 to 12 cm H2O without a humidifier. If you use a heated humidifier and higher pressures, CPAP machines can need up to 70 to 100 watts to operate.

Travel CPAP models are more energy efficient, typically using just 5 to 20 watts though they usually only offer non-heated humidification. Power needs vary based on pressure settings, humidification options, and specific CPAP machine types.

Battery Backup for Home: Can it Power CPAPs?

Can a battery backup power a CPAP?

Absolutely, a battery backup can power a CPAP! Our battery backups are perfectly capable of powering a CPAP machine, giving users peace of mind for a good night's sleep.

Growatt offers three battery backup options for home use. The Infinity 1300 and Growatt Solar Generator VITA 500 are suitable for daily use to power a CPAP machine. Both provide a simple and quick 60-second setup, allowing patients to access unlimited portable power whenever needed. The Infinity 1300 fully charges in just 1.8 hours by plugging into the wall.

However, if you want to power more of your home appliances for a longer runtime in addition to a CPAP machine, the Growatt Solar Generator Infinity 1500 may be a better choice.

The Infinity 1300 and VITA 500 batteries are appropriate when primarily using the backup system to power a CPAP machine. The Infinity 1500 offers a larger capacity for powering a CPAP machine as well as other home devices and appliances due to its ability to generate more power. All of Growatt's battery backups provide simple and fast setups in conjunction with quick charging times to give patients immediate access to the power needed for their CPAP therapy.

Will a battery backup power a CPAP through the night?

There are a few factors that will determine if a battery backup can power a CPAP through the night:

  1. Capacity of the battery backup: Bigger batteries with higher capacity in Wh will provide more runtime.
  2. Power requirements of the CPAP machine: Heavier CPAP machines, higher pressure settings, and heated humidifiers require more power and reduce the runtime of the battery. Simple machines with few features require less power and have better battery life.
  3. Condition of the battery: Older batteries or batteries that have gone through many charge cycles have reduced capacity and may not provide enough runtime to last an entire night. In summary, for most people, a medium to large-sized battery backup should be able to power a standard CPAP machine through the night as long as the battery is in good condition. It's best to calculate your CPAP's specific power needs and size the battery backup system accordingly.

Other considerations

It is important to test your CPAP machine on battery power prior to an actual power outage to ensure the battery backup system will function properly when needed. By performing a test run, you can determine if the battery has enough capacity to power your CPAP for the desired length of time. Any issues can be identified and addressed while you still have main power, avoiding problems during an actual outage. You should perform a full test where you run your CPAP on the battery for at least 6-8 hours to mimic an entire night's use. More tips

In addition to testing your battery backup, preparedness planning is crucial if you rely on CPAP therapy. You should speak with your oxygen and medical supply companies to have a contingency plan in place for power outages. Discuss options for getting a replacement battery or additional supplies during an extended outage. Having alternate plans and the contact information of your equipment providers can alleviate stress and assist you in continuing your therapy when the power does go out. Performing battery tests and creating preparedness plans ahead of time will ensure you are ready to effectively manage a power outage situation involving your CPAP machine.

Battery Backup for Home: Can it Power CPAPs?


In conclusion, battery backup systems can indeed provide reliable power for CPAP machines during power outages as long as the proper system is selected based on an individual's specific needs and CPAP machine requirements.

Larger battery capacities are necessary to power CPAP machines through the night, especially for those with heavier machines, higher pressure settings, and humidifiers. Simple CPAP machines without extra features can generally run on smaller battery backups.

By testing the battery system and preparing contingency plans in advance, CPAP users can gain peace of mind knowing they have a solution to maintain their therapy during unexpected power outages. With the right battery backup in place, CPAP machines can continue to operate at home without any power interruptions, ensuring users receive the uninterrupted sleep they need for good health. Battery power provides a simple yet effective solution for securing essential CPAP therapy in the event of power failures.

Disclaimer: (This content is for informational purposes only. Nothing on this site is intended to be a substitute for professional medical advice, diagnosis or treatment. Always seek the advice of your qualified physician and never disregard professional medical advice or delay in seeking it. )

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Growatt INFINITY 1300
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