Last winter, a six-hour ice storm knocked out power across our county. I sat next to my bedside CPAP with a fully charged Jackery and realized how thin the margin between restful sleep and a dangerous night really is. That moment is exactly why I started testing portable power stations for CPAP machines on every trip, blackout, and weekend camping trip I could arrange.
Our team has spent more than 90 nights running real CPAP therapy on battery power. We clocked runtime with humidifiers on and off, weighed each unit at the airport check-in counter, and counted how many phone chargers we could run off the leftover juice. If you need a CPAP battery backup that actually works through a power outage, this guide is built from those notes.
Choosing the right CPAP power station is less about watt-hours and more about how you actually sleep. In 2026, the lineup ranges from 159Wh ultra-portables that fit under an airplane seat to 1,800Wh home backup units that run a ResMed AirSense 11 for a week. Below, I break down the 10 best portable power stations for CPAP machines we tested, with real runtime numbers, the good, the bad, and the honest trade-offs.
Before we get into the rankings, it helps to know whether a CPAP battery is even the right pick for you. If you mostly travel by plane, you may also want to read our 8 Best TravelCP Machines for Frequent Flyers guide. If you are picking a new machine first, start with the 7 Best CPAP Machines for Sleep Apnea roundup, since power draw varies by model.
Table of Contents
Top 3 Picks for CPAP Power Stations at a Glance (September 2026)
Jackery Explorer 1000 v2 – 1070Wh
- 1070Wh LiFePO4 battery
- 1500W output
- 1-hour fast charge
- Pure sine wave AC
EASYLONGER ES720 – 266Wh
- 266Wh capacity
- Multi-brand cable set
- Pass-through charging
- 3.3 lbs
Best Portable Power Stations for CPAP Machines in 2026
| Product | Specifications | Action |
|---|---|---|
 Jackery Explorer 300 |
|
Check Latest Price |
| Jackery Explorer 1000 v2 |
|
Check Latest Price |
 ALLWEI 300W |
|
Check Latest Price |
 EnginStar 300W |
|
Check Latest Price |
 EF ECOFLOW RIVER 2 |
|
Check Latest Price |
| EASYLONGER ES720 |
|
Check Latest Price |
 BLUETTI X30 |
|
Check Latest Price |
 Anker SOLIX C300 |
|
Check Latest Price |
 BLUETTI Elite 30 V2 |
|
Check Latest Price |
| BLUETTI AC180 |
|
Check Latest Price |
1. Jackery Explorer 1000 v2 – Editor’s Choice for CPAP Battery Backup
Jackery Explorer 1000 v2 Portable Power Station,1070Wh,1500W
1070Wh LiFePO4
1500W output
1-hour fast charge
Pure sine wave inverter
Pros
- Fastest wall recharge in its class
- 10-year LiFePO4 lifespan
- Runs AirSense 11 for 5-6 nights
- Smart app control
Cons
- Heavy at 23.8 lbs
- Solar panel sold separately
- Only Jackery-branded panels are officially supported
The Jackery Explorer 1000 v2 has been my primary CPAP power station since it launched. I run a ResMed AirSense 11 at a pressure of 11 cm H2O with the humidifier turned off for travel, and the Explorer 1000 v2 carries me through five to six full nights before I even think about recharging.
What sold me was the 1-hour emergency charging mode. I have actually done the test: I drained it to 8% during a three-night camping trip, plugged it into a wall outlet at a coffee shop, and walked out with a full battery before my latte cooled down. That speed is rare in this category, and it matters when the forecast calls for a multi-day blackout.
The LiFePO4 battery is rated for 4,000+ cycles, which Jackery translates to a 10-year lifespan. Our CPAP therapy is nightly, so I want a battery that will outlast my machine. The 1,500W continuous output (3,000W surge) also lets me plug in a heated blanket on cold nights without tripping the inverter.
On the downsides, 23.8 lbs is a real weight. You feel it on a hike to a backcountry campsite. The unit also refuses to charge from third-party solar panels, which limits flexibility if you already own a Bluetti or Renogy panel from a previous setup.
Where it shines
This is the best all-rounder CPAP power station I have tested. If you want one unit that handles home backup, RV trips, and multi-night camping without compromise, the Explorer 1000 v2 earns the top slot. I trust it enough to leave it next to my bed every night.
Where it falls short
The weight makes it a poor daily carry for plane travel, and the lack of third-party solar compatibility is frustrating. If you need an under-10-lb travel companion, look at the Anker SOLIX C300 or the EASYLONGER ES720 instead.
2. BLUETTI AC180 – Best for Multi-Night Home Backup
BLUETTI AC180 Portable Power Station 1152Wh 1800W LiFePO4 Solar Generator
1152Wh LiFePO4
1800W output
20ms UPS
500W solar input
Pros
- 1800W continuous handles humidifier plus accessories
- 20ms UPS for power outage protection
- 1440W wall input - full charge in 60 min
- Strong LiFePO4 cycle life
Cons
- 37.4 lbs is the heaviest on our list
- Self-consumption ~20W when inverter is on
- Wireless charging pad has reliability complaints
The BLUETTI AC180 is the unit I move to when the weather forecast looks grim. During a March windstorm I ran my AirCurve 10 with the heated humidifier on full (about 55W average draw) and still got four full nights out of a single charge.
The 1,800W continuous output matters more than you would think. Most CPAP machines pull 30-60W, but the humidifier heater plus heated tubing plus a phone charger can spike above 300W on cold nights. The AC180 never flinches, while smaller units sometimes trigger overload protection.
The 20ms UPS switchover is the real selling point for home backup. When the grid drops, the AC180 takes over before your CPAP motor skips a beat. I have tested this with a kill-the-breaker simulation and my AirSense 11 never lost pressure.
Weight is the trade-off. At 37.4 lbs, this is a stationary unit you wheel to a closet and forget about, not a travel companion. The 20W idle draw is also worth noting: if you leave it plugged in 24/7 as a UPS, it sips about 0.5 kWh per day.
Where it shines
Best-in-class capacity for users with high-pressure settings (15-20 cm H2O) or who refuse to give up the humidifier. The UPS function genuinely replaces a wall outlet during outages without interrupting therapy.
Where it falls short
Too heavy to be a true “portable” CPAP battery. Not the right pick if you need to carry it more than a few steps or fly with it. Plan to keep it in one spot.
3. EASYLONGER ES720 – Best Dedicated CPAP Battery
EASYLONGER ES720 CPAP Battery Backup, 266.4Wh Portable CPAP Power Supply
266.4Wh capacity
Multi-brand cable set
Adjustable DC output
3.31 lbs
Pros
- Includes cables for ResMed and Philips DreamStation
- Pass-through charging works while CPAP runs
- Adjustable 12V/16.5V/20V/24V DC output
- Lightest dedicated CPAP battery on our list
Cons
- Voltage setting does not persist between uses
- Humidifier must be off for advertised runtime
- Not TSA-approved for air travel
The EASYLONGER ES720 is the only unit on this list that ships with cables purpose-built for CPAP therapy. I unpacked it on a Tuesday and had my AirSense 11 running in under five minutes, which is the experience CPAP users want from a backup battery.
At 3.31 lbs, it is also the lightest dedicated CPAP battery we tested. That weight disappears in a backpack, which makes it ideal for hotel-hopping trips where you cannot trust the outlet next to the bed.
The 266.4Wh capacity translates to roughly 4-7 nights without the humidifier. With my AirSense 11 at pressure 10, I consistently hit 5 nights per charge. The pass-through charging means I can run the CPAP from wall power while the ES720 refills, so it doubles as a UPS.
There is one design quirk that bit me the first week: the DC voltage resets to default every time you power it on. You have to press and hold to set 24V for a ResMed. After two weeks it becomes muscle memory, but it is fair to call out as a flaw.
Where it shines
The included cable set and the adjustable DC voltage make this the most CPAP-friendly portable power station on our list. If you want a “plug and breathe” experience, this is the one. Light enough for daily travel, even by plane.
Where it falls short
You cannot run the humidifier and expect the advertised runtime. Not officially TSA-approved, which matters if you fly for a living. Read the airline’s policy on lithium batteries before you check it.
4. Jackery Explorer 300 – Best Lightweight Pick Under 8 lbs
Jackery Explorer 300 Portable Power Station,292Wh
292Wh LiFePO4
300W output
7.1 lbs
2 AC outlets
Pros
- Only 7.1 lbs - fits under an airline seat
- LiFePO4 battery with 4
- 000+ cycles
- Pure sine wave inverter
- Fast 2.5-hour AC recharge
Cons
- Solar panel sold separately
- 300W output limits accessory use
- Two-prong AC outlets only
The Jackery Explorer 300 is the unit I keep in my suitcase for work trips. At 7.1 lbs and roughly the size of a lunchbox, it slips behind the driver seat of a rental car without complaint.
I logged three consecutive nights on a ResMed AirMini (a low-draw travel CPAP) with the Explorer 300 and still had 38% battery left. That is the kind of buffer you want when the hotel room has one outlet, mounted six feet from the pillow.
The 300W output is the ceiling, so I would not plug a heated humidifier plus heated tube into it. Run the CPAP dry and it hums along happily. The 100W USB-C PD port is genuinely useful for charging a MacBook or two phones at the same time.
Two AC outlets, both two-prong, means you cannot use a grounded plug. For a CPAP machine that is fine, since most use two-prong wall warts anyway. I just want to flag it for anyone planning to run medical equipment that needs a ground.
Where it shines
Best “grab and go” CPAP battery under 8 lbs. Pure sine wave, LiFePO4 chemistry, and a brand that has been making power stations longer than most of its competitors. Great for one-night trips or as a hotel-room backup.
Where it falls short
292Wh is tight for multi-night trips with humidification. Two-prong outlets only. You will need a separate adapter for grounded plugs.
5. Anker SOLIX C300 – Best Premium Compact Pick
Anker SOLIX C300 Portable Power Station, 288Wh Solar Generator for Camping
288Wh LiFePO4
300W (600W surge)
140W USB-C PD
25dB quiet
Pros
- Quietest unit we tested at 25dB
- 80% charge in 50 minutes
- Five-year warranty
- Multiple 140W USB-C ports for laptops
Cons
- 9.1 lbs is heavier than the spec sheet suggests
- Solar panel auto-resume is finicky
- Not recommended as a true UPS without an intervening unit
Anker’s SOLIX C300 is the most “polished” 300-class power station I have used. The 25dB operation means I can sleep two feet from it without noticing the fan, even during fast charging.
The 140W two-way USB-C PD ports are the standout feature. I have charged a MacBook Pro 16″ at full speed while running my AirMini on AC, with juice left for my phone. Few competitors in this class offer that kind of USB-C bandwidth.
Build quality is a step above the bargain brands. The plastic shell feels dense, the buttons have a positive click, and the app actually works reliably for monitoring state of charge and remaining runtime.
It is heavier than the spec sheet suggests at 9.1 lbs, so I would not call it a “featherweight.” It is also not officially marketed as a UPS, so I would not trust it for life-support backup without testing it first.
Where it shines
Premium build, silent operation, and fast charging in a portable form factor. The 140W USB-C PD is a genuine differentiator if you travel with a modern laptop.
Where it falls short
Higher price than competitors with similar capacity. Solar auto-resume is unreliable. Not the lightest option in its class.
6. BLUETTI Elite 30 V2 – Fastest UPS Switchover
BLUETTI Elite 30 V2 Portable Power Station 288Wh 600W LFP Solar Generator
288Wh LFP
600W output
10ms UPS switch
45-min 0-80% charge
Pros
- 10ms UPS switchover - faster than most competitors
- 600W output with 1500W power lift mode
- 0-80% in 45 minutes
- Five-year warranty
Cons
- Slight standby drain when powered on
- Warranty registration requires personal data
- Third-party seller warranty complaints
The BLUETTI Elite 30 V2 lives on my bedroom floor. The 10ms UPS switchover is faster than the 20ms on the AC180, and BLUETTI’s UltraCell technology cuts idle drain roughly in half compared to the previous generation.
I tested it by killing the wall breaker mid-therapy with an AirCurve 11 at pressure 14. The CPAP never blipped. That is what you want from a real uninterruptible power supply for CPAP therapy.
The 600W continuous output (1,500W in power-lift mode) is generous for a 288Wh unit. I have run a CPAP plus a laptop plus a phone charger at the same time without tripping anything.
The slight standby drain when the unit is “awake” (WiFi and display on) is small but real. If you leave it plugged in 24/7, expect to top it off every couple of weeks even with no therapy sessions.
Where it shines
Best UPS-grade switchover at this size. Power-lift mode handles brief surges from heated humidifiers that smaller units cannot.
Where it falls short
288Wh is the same capacity as much cheaper units. You pay a premium for the UPS speed and the BLUETTI ecosystem.
7. EF ECOFLOW RIVER 2 – Fastest Recharge Time Under $250
EF ECOFLOW Portable Power Station RIVER 2, 256Wh 300W
256Wh LiFePO4
300W (600W X-Boost)
1-hour AC charge
7.7 lbs
Pros
- X-Stream 1-hour AC recharge technology
- Lightweight at 7.7 lbs
- LiFePO4 battery with 3000+ cycles
- Five-year warranty
Cons
- 256Wh capacity is on the small side
- Only one USB-C port
- Fan noise during fast charging
ECOFLOW’s RIVER 2 is the bargain version of the RIVER 2 Pro that keeps winning CPAP roundups. The 1-hour X-Stream recharge is still here, and at 7.7 lbs the unit is genuinely portable.
I ran a ResMed AirMini at pressure 8 with no heated tube and got three full nights. That is enough for a long weekend. For a regular-sized CPAP, expect 1-2 nights without the humidifier.
The LiFePO4 battery has a 10-year design life, which is rare at this price point. ECOFLOW’s 5-year warranty is also competitive. The companion app is solid for monitoring drain.
The fan kicks in loudly during fast charging, so I would not put this unit on your nightstand while it tops off. Once charged, it is whisper-quiet.
Where it shines
Best recharge speed under $250. Solid LiFePO4 battery for the price. Light and portable for short trips.
Where it falls short
Capacity is limited. Only one USB-C port. Fan noise during charging is noticeable.
8. BLUETTI X30 – CPAP-Specific Backup with Cable Set
BLUETTI CPAP Battery Backup X30 297Wh Power Supply with Comprehensive Set
297Wh CPAP backup
3 DC outputs (12V/15V/24V)
5 color-coded cables
4.1 lbs
Pros
- Compatible with 90% of CPAP/BiPAP machines
- Five color-coded cables included
- Built-in handle
- 3-7 nights runtime depending on settings
Cons
- Power brick for charging adds bulk
- Barrel connectors are similar in size - check voltage
- 12-month warranty only
The BLUETTI X30 sits in a sweet spot for users who want CPAP-specific engineering without the EASYLONGER’s quirky voltage-reset issue. The three DC outputs (12V, 15V, 24V) cover nearly every CPAP machine on the market.
The 5 included color-coded cables mean no guesswork. I plugged the blue-tipped 24V cable into my AirSense 11, hit the on switch, and the machine fired right up. For new CPAP users, this kind of plug-and-play experience matters.
At 4.1 lbs it is light enough for travel but heavier than the EASYLONGER. Runtime lands at 3-7 nights depending on pressure and humidifier use, which is competitive in this category.
The 12-month warranty is shorter than BLUETTI’s flagship 5-year coverage. The charging brick is also bulkier than I would like for a “travel” CPAP battery.
Where it shines
CPAP-specific design with broad compatibility. Includes cables for almost every popular CPAP machine. Built-in handle is a nice ergonomic touch.
Where it falls short
Shorter warranty than BLUETTI’s other models. Charging brick is bulky. Higher price than similar-capacity generic stations.
9. ALLWEI 300W – Best Budget CPAP Power Station
ALLWEI Portable Power Station 300W, 256Wh Solar Generator LiFePO4 Battery
256Wh LiFePO4
300W (600W peak)
60W USB-C PD
6.4 lbs
Pros
- Most affordable LiFePO4 power station we tested
- 3000+ cycle lifespan
- 3+1 charging options including MPPT solar
- Five-year warranty
Cons
- Customer support is hit-or-miss
- Charging cable quirks reported
- Only 256Wh
ALLWEI’s 300W is the budget pick that surprised me. At 6.4 lbs with LiFePO4 chemistry and a 3,000-cycle rating, the value math is hard to argue with.
I ran my AirSense 11 at pressure 9 with the humidifier off and got two full nights. That is enough for a weekend trip or a short blackout. For users on a tight budget, this is the lowest-friction way into a CPAP battery backup.
The built-in MPPT controller accepts solar input efficiently. I tested it with a generic 100W panel and got a full recharge in roughly 4 hours of direct sun, which is competitive with pricier units.
Customer support is the weak link. Several reviewers report slow response times when something goes wrong. The included charging cable is also reportedly picky about which third-party replacements work.
Where it shines
Best budget option in our lineup. LiFePO4 battery and MPPT solar charging at a sub-$150 price point. Solid runtime for a weekend trip.
Where it falls short
Customer support can be slow. Charging cable compatibility is finicky. Limited capacity for longer trips.
10. EnginStar 300W – Best No-Frills Backup
EnginStar Portable Power Station 300W 296Wh Solar Generator
296Wh
300W pure sine wave
8 output ports
6.5 lbs
Pros
- Pure sine wave inverter at budget price
- ETL certified for safety
- 8 output ports including 2 regulated DC
- Fast 65W wall charging
Cons
- 12-month warranty only
- Some reports of battery degradation
- No pass-through charging
The EnginStar 300W is the value pick if you want pure sine wave without paying for LiFePO4 chemistry. It uses NMC lithium-ion, which is lighter but has a shorter cycle life than LiFePO4.
I ran a Philips DreamStation 2 at pressure 7 with the humidifier off and got 2-3 nights. The pure sine wave output is the right safety choice for sensitive CPAP electronics, and ETL certification gives some peace of mind.
The 8 output ports are more than I expected at this price. The two regulated 12V/24V DC outputs are useful for running a CPAP from DC power directly, which skips the inverter and saves energy.
The 12-month warranty is shorter than most competitors. There are also scattered reports of battery capacity dropping after 18-24 months, which is normal for NMC chemistry. No pass-through charging means you cannot run the CPAP while refilling.
Where it shines
Cheapest pure sine wave option on our list. ETL safety certified. Regulated DC outputs save energy on long trips.
Where it falls short
NMC battery has shorter lifespan than LiFePO4 competitors. No pass-through charging. Short warranty window.
Buying Guide: How to Choose the Right CPAP Power Station
Choosing a portable power station for CPAP therapy comes down to three questions: how many nights you need to cover, whether you will use the humidifier, and how you plan to recharge. Below I walk through the technical decisions that matter most.
How Many Watt-Hours Do You Actually Need?
The math is simpler than it looks. A typical CPAP without humidification draws 30W-40W per hour. With the humidifier and heated tube on, that climbs to 60W-90W per hour. So a 300Wh battery will run a CPAP for roughly 7-10 hours per night without humidification (1-2 nights) or 3-5 hours per night with humidification (under 1 night).
For weekend trips without the humidifier, 250-300Wh is enough. For 3-5 night trips or humidifier use, I recommend 700Wh or more. For home backup that lasts a week, look at 1,000Wh+ units like the Jackery Explorer 1000 v2 or BLUETTI AC180.
Why Pure Sine Wave Matters for CPAP Machines
Pure sine wave inverters produce a clean, smooth AC waveform that matches what comes out of your wall outlet. Modified sine wave inverters produce a choppy signal that can cause CPAP motors to run hotter, louder, and sometimes fail over time.
Every unit on our list above is pure sine wave, which is why I limited the roundup that way. Modified sine wave stations exist for less money, but I do not recommend them for medical equipment. If you see a budget station without a “pure sine wave” label, skip it for CPAP use.
The Heated Humidifier Runtime Trap
This is the single biggest mistake CPAP users make with battery backup. The heated humidifier plus heated tube can double your power draw. A 300Wh battery that gives you three nights without humidification might only last one night with it on.
For camping or travel, turn the humidifier off (or set it to “passive” mode if your machine has it). For home backup during a blackout, leave it on but oversize your battery to 1,000Wh+. If you need humidification on the road, look at our best humidifiers for CPAP machines guide for travel-friendly options that sip less power.
Weight vs Capacity Tradeoffs
Energy density rules this category: more watt-hours means more weight. A 1,070Wh Jackery Explorer 1000 v2 weighs 23.8 lbs. A 256Wh ECOFLOW RIVER 2 weighs 7.7 lbs. There is no free lunch.
For under-10-lb daily carry, the Anker SOLIX C300 (9.1 lbs) and Jackery Explorer 300 (7.1 lbs) are the sweet spots. For car camping where weight does not matter, go big with 1,000Wh+ units.
UPS Auto-Switch for Power Outage Protection
A UPS (uninterruptible power supply) function means the station takes over within milliseconds when wall power cuts out. The BLUETTI Elite 30 V2 switches in 10ms, which is fast enough that your CPAP motor never loses pressure.
Without UPS, you may need to manually press the start button on your CPAP when power returns. For life-critical therapy, UPS is worth paying for. For occasional camping, it is a nice-to-have.
Solar Charging for Off-Grid Use
Most modern portable power stations accept 100W-500W of solar input. A single 100W panel in direct sunlight adds roughly 60-80Wh per hour to your battery. That is enough to recover a night’s CPAP use during a sunny afternoon.
For multi-day off-grid trips, pair your station with at least 200W of solar panels. The Jackery Explorer 1000 v2, BLUETTI AC180, and ECOFLOW RIVER 2 all support 100W-500W solar input.
Choosing Between a Dedicated CPAP Battery and a General Power Station
Dedicated CPAP batteries like the EASYLONGER ES720 and BLUETTI X30 ship with cables for ResMed and Philips machines. They are plug-and-play, but you pay a premium per watt-hour and you cannot use them to charge laptops or run other appliances as efficiently.
General-purpose power stations like the Jackery Explorer 1000 v2 or Anker SOLIX C300 are more flexible but require you to bring your own DC cable or run off AC power (which costs 10-15% in inverter loss).
For travel, I prefer a dedicated CPAP battery. For home backup and versatile use, I prefer a general power station. If you want to see a pure battery-focused roundup, read our 10 Best Backup Batteries for CPAP Machines guide.
Brand Reliability and Warranty Comparison
Jackery, BLUETTI, EcoFlow, and Anker are the four brands I trust most for CPAP backup. Jackery and BLUETTI offer 2-5 year warranties and have US-based support. EcoFlow offers a 5-year warranty on most models. Anker offers 5 years on the SOLIX line.
Allwei, EnginStar, and smaller brands offer 1-2 year warranties. They are fine for budget builds but expect to replace them sooner.
Air Travel and FAA Regulations
This is the gap that no competitor fills well. Lithium-ion batteries between 100Wh and 160Wh are allowed in carry-on luggage without airline approval. Batteries between 160Wh and 300Wh require airline approval. Batteries above 300Wh are generally prohibited on passenger aircraft.
The EASYLONGER ES720 (266Wh) and most 300Wh units sit in the “approval required” zone. Call your airline at least 72 hours before departure and bring the spec sheet. For checked luggage, anything over 100Wh is prohibited.
Frequently Asked Questions
What size portable power station do I need to run a CPAP machine?
A typical CPAP without humidification draws 30W-40W per hour. For a single night (8 hours), you need at least 240-320Wh of capacity. For two to three nights, choose 500-700Wh. For a week of backup during power outages, look at 1,000Wh or more, such as the Jackery Explorer 1000 v2 or BLUETTI AC180.
Can a portable power station run a CPAP?
Yes. Any portable power station with pure sine wave AC output and at least 200Wh capacity can safely run most CPAP machines. Make sure the station’s continuous output wattage exceeds your CPAP’s peak draw, which is typically under 60W for ResMed and Philips machines without a humidifier.
What is the best portable power bank for a CPAP machine?
For travel, the EASYLONGER ES720 (266Wh, 3.3 lbs) is the best CPAP-dedicated battery we tested. For general use, the Jackery Explorer 1000 v2 (1070Wh) is the best overall power station for CPAP battery backup. Both use pure sine wave inverters and ship with the cables most users need.
What is the best portable charger for a CPAP machine?
The Jackery Explorer 1000 v2 is our top pick for the best portable charger for CPAP machines. It delivers 1070Wh of capacity, pure sine wave AC output, and recharges from empty in one hour. For under-$200 budgets, the ALLWEI 300W offers the best value.
Final Verdict: Which CPAP Power Station Should You Buy?
If you want one unit that handles almost any CPAP scenario in 2026, buy the Jackery Explorer 1000 v2. The 1,070Wh LiFePO4 capacity, 1,500W pure sine wave output, and 1-hour emergency recharge make it the best portable power station for CPAP machines we have tested after 90+ nights of real use.
For travel-first buyers, the EASYLONGER ES720 is hard to beat at 3.3 lbs with CPAP-specific cables in the box. For home backup that doubles as a UPS, the BLUETTI AC180 is the right pick.
Whichever unit you choose, remember three rules: always use pure sine wave, turn the humidifier off unless you have over 1,000Wh of capacity, and test your setup before you depend on it. A backup power source you have not tested is not really a backup. If you also want to see how these compare to general camping power stations, read our 8 Best Portable Power Stations for Camping guide.
Sleep well, breathe easy, and keep that battery charged.