With a wide variety of portable power stations offered by Bluetti, you might be wondering which can power a CPAP machine.
All Bluetti portable power stations can run a CPAP machine. However, the run time will depend on the battery capacity and the required energy output to power the CPAP machine. The smallest Bluetti EB3A will run most CPAP machines for 3 hours 13 minutes, while the AC200MAX will run for almost 28 hours.
CPAP machines can be a lifesaver for your sleep (and we can't forget the partners). Now, with portable power stations, you never have to have a night without it - but which Bluetti should you consider?
Table of contents
Different CPAP machines have different power needs, and various models of Bluetti have varying capacities. However, most CPAP machines will use between 60W and 90W per hour, so let’s look at how long an average 75W CPAP machine will.
CPAP - 75 watts
| Model |
75W CPAP |
| EB3A | 2 hours, 47 minutes |
| EB55 | 6 hours, 14 minutes |
| EB70 | 7 hours, 44 minutes |
| AC60 | 4 hours, 34 minutes |
| AC180 | 12 hours, 54 minutes |
| AC200P | 23 hours, 28 minutes |
| AC200MAX | 24 hours, 02 minutes |
As you can see, many of the Bluetti Portable Power Stations can get your CPAP machine through the night without any charging.
If your CPAP machine wattage is rated higher or lower than 75W, click here to find out how long yours will last with each Bluetti Portable Power Station.
How do you calculate how long your CPAP machine will run?
To calculate how long your fan will run, you will need the following:
- The battery capacity of the power station,
- the power consumption of the CPAP machine, and,
- the power station efficiency.
To help, I built a simple calculator for each model of Bluetti.
Alternatively, you can use the following calculation to determine how long your CPAP machine will run for any portable power station.
Run-time calculation
Battery capacity (watt-hours) / CPAP machine power (watts) * Power Station efficiency (%) = run-time (hours)
To build my calculator, I used the following details.
Bluetti Power Station battery capacity
| Model |
Battery Capacity |
| EB3A | 268Wh |
| EB55 | 537Wh |
| EB70 | 716Wh |
| AC60 | 403Wh |
| AC180 | 1,152Wh |
| AC200P | 2,000Wh |
| AC200MAX | 2,048Wh |
CPAP machine power consumption
Your CPAP machine will likely have a sticker indicating its power consumption. However, if there isn't, you can also find the power consumption in the user manual, which you can often download online if you have no longer got yours to hand.
CPAP machines will continuously run at the same wattage. Therefore, you can directly convert the watts stated to watt-hours needed - making it an easy appliance to find which Bluetti will be best for you.
Bluetti power station efficiency
Different Bluetti's will have varying efficiencies, and there will be a difference between AC and DC powering.
But, most CPAP machines will need to be powered by AC, so let's look at the AC inverter efficiencies by each model:
| Model |
AC Inverter Efficiency |
| EB3A | 78% |
| EB55 | 87% |
| EB70 | 81% |
| AC60 | 85% |
| AC180 | 84% |
| AC200P | 88% |
| AC200MAX | 88% |
Straight out of the box, your Bluetti should be configured to run A/C appliances, including a CPAP machine.
But, before using your Bluetti to power your CPAP machine, you should first charge its internal battery.
Your user guide will explain how to charge your specific power station. You can find a digital copy of your user guide on the Bluetti website here.
In general, one of the easiest ways to charge your Bluetti will be using the included power cable in a wall outlet tied to the grid.
Once your power station is charged, you can plug your CPAP machine straight into the A/C outlet on the Bluetti.
Even the smallest Bluetti EB3A is capable of powering a CPAP machine. However, you might find the battery lacking, which is why we recommend the Bluetti AC180 as the best portable power station for a CPAP machine.
Bliuetti AC180
We recommend the AC180 when choosing a Bluetti to run a CPAP machine.
CPAP machines must run long enough for a whole night of sleep. While the amount of sleep varies, the AC180 has an 1152WH battery, which will comfortably last a night's sleep - unless you sleep for more than 12 hours!
Boasting an 1800W output, you can use it for various appliances, including those much more power-hungry than a CPAP machine.
But how does the Bluetti stack up with its competition?
Bluetti makes some fantastic portable power stations, all of which are more than capable of running a CPAP machine. However, you may consider cheaper alternatives or other brands which offer more features for your money.
We have tested models from the leading portable power station brands, Bluetti, Ecoflow, and Jackery.
| Portable Power Station |
Inverter Power |
Battery Size |
| Bluetti AC180 |
1800 watts |
1152 Wh |
| EcoFlow RIVER 2 Pro |
800 watts |
768 Wh |
| Jackery Explorer 1000 |
1000 watts |
1002 Wh |
Based on its inverter output, battery capacity, build quality and price, the Bluetti AC180 is the best in its class.
However, if you were not looking at running other more power-hungry appliances, I would also strongly consider the EcoFlow RIVER 2 PRO. The Bluetti AC180's output wattage and battery capacity are excessive for most CPAP machines. Plus, the EcoFlow RIVER 2 PRO is usually cheaper than the Bluetii AC180. It provides a more suitable output wattage and battery capacity for a CPAP machine.
You will often find Bluetti and Ecoflow products on sale. Check out their latest prices below:
Bluetti AC180 Latest Price
EcoFlow RIVER 2 Pro Latest Price
Jackery Explorer 1000 Latest Price
A great feature of a Bluetti is that you can charge your battery while powering a CPAP machine. You can use your mains power at home to keep your Bluetti fully charged while using your CPAP machine.
This can be a great option to use your Bluetti as a UPS (uninterruptible power supply) to keep your CPAP machine running during a power outage.
But what if you are on the road or don't have access to mains power?
Two other great ways to keep your power station charged are:
Solar power
Bluetti works excellently with solar panels. Whether you have yours hard mounted on the roof of your house or portable for camping, using the sun's rays to charge your battery is a great way to boost performance.
Your power station will include a solar charge cable pre-terminated to MC4, a widespread solar connector.
While Bluetti sells solar panels specifically for their power stations, they can be expensive compared to others on the market.
Bluetti PV200 Solar Panel
The PV200 Solar Panel is compatible with all their portable power stations and provides 200W of solar power. However, they cost more than double what you can pay for a similar-performing panel from other manufacturers.
Bluetti's AC180 is also compatible with their PV350 Solar Panel, providing up to 350W of solar power, or their smaller PV120, providing 120W.
Although, I think the PV120 is a little too small for the AC180, as this portable power station provides a large battery compared to most others.
If you use your own solar panels, be careful; you must ensure that they are within the specification of your Bluetti.
But, if you use your own solar panels, be careful; you must ensure that they are within the specification of your Bluetti.
Important!
Ensure you refer to the owner's guide, which will tell you the Open Current Voltage (OCV), maximum input current, and maximum input power.
Do not exceed these parameters, or you will damage your power station!
DC power
Charging your portable power station with DC power is one of my favourite ways to extend its runtime.
Bluetti offers pass-through charging, meaning you can charge your power station while simultaneously powering an electric blanket.
So, even if you own their baby EB3A, you can get hours of extra runtime by charging with DC.
You can charge your Bluetti with:
- 12/24V from Cigarette Lighter Port
- 500W Max., VOC 12-60VDC, 10A - Often for Solar, but see below for use with a DC battery.
Powering by another DC battery is one of my favourite ways to add extra battery capacity cheaply!
My setup allows me to more than double my battery capacity for much less than buying the next model up.
This allows me to charge my Bluetti EB3A at 152w, which is enough to extend the battery on the EB3A while powering a CPAP machine by a further 384wh up to 652wh.
This only gives us enough capacity to power the CPAP machine for just shy of 6 hours 46 minutes, which isn't enough for most people. But if it is for you, you can make it yourself to save a good amount of money.
Even better, I get to use the EB3A's improved screen to see exactly what percentage of the battery remains (the EB55 lacks this). Plus, I can use it for other projects too!
To replicate, you will need the following:
If you sleep more than 6 hours 46 minutes, you could create something similar with Bluetti's next model up.
I suggest purchasing the Bluetti EB55.
Out of the box, the EB55 has a reasonable 537Wh capacity. By extending it using the method above, the Bluetti could power the CPAP machine throughout the night without any charging.
While powering your CPAP machine off-grid with a portable power station is a great solution, it will only be suitable for some.
Some other alternative ways to power your CPAP machine include:
- solar
- diesel generator
- gas (propane) generator
- UPS
- Consider a travel CPAP machine - some can even run off battery!
To stay as green as possible, we always recommend, where possible, powering your devices using solar power.
About the author
Andy Vickery has been DIY'ing energy projects for years. From solar and home electrics, to car rewires, Andy is passionate about sharing his personal experiences.