Sized for a job
Sized for one 8-hour night with the heated humidifier on, which is the draw that decides everything. Start with enough capacity for the humidifier, and check whether your machine supports a compatible DC cable to reduce conversion losses. Start with Jackery Explorer 1000 v2 for enough capacity without carrying a much larger battery.
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Best for CPAP3.8/5 overall
Score from the maker's figures and 4 independent reviews
Why it’s here
Holds 1,070 Wh against the 627 Wh needed for a night of CPAP and a 3,000 W surge for the 124 W start-up. 23.8 lb, one of the lightest options with enough power.
$499 · $0.47/Wh
Best value3.8/5 overall
Score from the maker's figures and 3 independent reviews
Why it’s here
Holds 1,024 Wh against the 627 Wh needed for a night of CPAP and a 3,600 W surge for the 124 W start-up. $529 ($0.52 per Wh), a lower-cost way to cover a night of CPAP.
$529 · $0.52/Wh
Easiest to carry3.7/5 overall
Score from the maker's figures and 3 independent reviews
Why it’s here
Holds 1,024 Wh against the 627 Wh needed for a night of CPAP and a 4,400 W surge for the 124 W start-up. 28.7 lb, check that this carry weight suits you.
$699 · $0.68/Wh
Device 424 Wh · Losses 75 Wh · 20% headroom 100 Wh
Jackery Explorer 1000 v2: 1,070 Wh at the end marker. Required with losses and headroom: 599 Wh. Unfilled space is remaining capacity. Assumes 85% AC efficiency; check output and startup power separately.
Device 360 Wh · Losses 64 Wh · 20% headroom 85 Wh
Jackery Explorer 1000 v2: 1,070 Wh at the end marker. Required with losses and headroom: 509 Wh. Unfilled space is remaining capacity. Assumes 85% AC efficiency; check output and startup power separately.
The machine and its heating settings matter. The examples use 45 W without a heated humidifier and 53 W with one. They are planning examples, not a before-and-after measurement of the same machine. With this page's starting appliances, a night needs 627 Wh. A compact battery does not automatically cover the night, even without a humidifier. Check your own machine's draw and the hours you need. If you use a DC converter cable, it must be compatible with both the CPAP and the station's port. The custom load calculator separates DC energy from AC energy and leaves cable compatibility for you to check.
Nights per charge, humidifier off, for the picks: Jackery Explorer 1000 v2 about 2.5 nights (2.1 with it on); EcoFlow DELTA 3 Classic about 2.4 nights (2.1 with it on); DJI Power 1000 about 2.4 nights (2.1 with it on); capacity × 0.85 ÷ device watts ÷ 8 hours.
Over 1 day. Device watt-hours ÷ 0.85 for the inverter, × 1.2 for headroom, gives the 627 Wh above; the start-up peak adds the largest single surge among these devices to the running total.
| Device | Watts | Hours a day | Wh a day | Start-up W |
|---|---|---|---|---|
| CPAP machine (with heated humidifier) (rated) | 53 | 8 | 424 | 104 |
| Smartphone charger (USB-C) (rated) | 20 | 1 | 20 | – |
Listed lightest first, because this unit gets carried.
46 units
| Unit | Chemistry | Cycles | Store | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| EcoFlow RIVER 2 Pro | 3.8 | 768 | 800 W (1,600 surge) | 18.2 | 220 | LiFePO4 | 3,000 to 80% | $349 | $0.45 | See it at EcoFlow |
| Goal Zero Yeti 700 | 3.2 | 677 | 600 W (1,000 surge) | 20.3 | 200 | LiFePO4 | 4,000 to 80% | $700 | $1.03 | See it at Goal ZeroCheck price on Amazon |
| Jackery HomePower 1000 v2 | 3.6 | 1,024 | 1,500 W (3,000 surge) | 23.4 | – | LiFePO4 | 6,000 to 70% | $649 | $0.63 | See it at JackeryCheck price on Amazon |
| BLUETTI Elite 100 mini | 4.0 | 1,005 | 700 W (1,050 surge) | 23.6 | 350 | LiFePO4 | 6,000 to 80% | $429 | $0.43 | See it at BLUETTICheck price on Amazon |
| Jackery HomePower 1000 Plus v2 | 3.7 | 1,024 | 1,800 W (3,600 surge) | 23.8 | 400 | LiFePO4 | 6,000 to 70% | $669 | $0.65 | See it at JackeryCheck price on Amazon |
| Jackery Explorer 1000 v2 | 3.8 | 1,070 | 1,500 W (3,000 surge) | 23.8 | 400 | LiFePO4 | 4,000 to 70% | $499 | $0.47 | See it at JackeryCheck price on Amazon |
| Anker SOLIX C1000 Gen 2 | 3.7 | 1,024 | 2,000 W (3,000 surge) | 24.9 | 600 | – | 4,000 to 80% | $530 | $0.52 | See it at Anker SOLIXCheck price on Amazon |
| BLUETTI Elite 100 V2 | 3.7 | 1,024 | 1,800 W (3,600 surge) | 25 | 1,000 | LiFePO4 | 4,000 to 80% | $899 | $0.88 | See it at BLUETTICheck price on Amazon |
| EcoFlow DELTA 3 Classic | 3.8 | 1,024 | 1,800 W (3,600 surge) | 26.7 | 500 | LiFePO4 | – | $529 | $0.52 | See it at EcoFlowCheck price on Amazon |
| EcoFlow DELTA 3 | 4.0 | 1,024 | 1,800 W (3,600 surge) | 27.6 | 500 | LiFePO4 | 4,000 to 80% | $629 | $0.61 | See it at EcoFlowCheck price on Amazon |
| EcoFlow DELTA 3 Plus | 4.1 | 1,024 | 1,800 W (3,600 surge) | 27.6 | 1,000 | LiFePO4 | 4,000 to 80% | $719 | $0.70 | See it at EcoFlow |
| OUPES Mega 1 | 3.8 | 1,024 | 2,000 W (4,500 surge) | 27.8 | 800 | LiFePO4 | 3,500 to 80% | $699 | $0.68 | See it at OUPESCheck price on Amazon |
| 4Patriots Patriot Power Solar Generator 1200 | 2.8 | 1,030 | 1,200 W (2,400 surge) | 28 | – | LiFePO4 | 4,000 to 80% | $1,499 | $1.46 | See it at 4Patriots |
| Anker SOLIX C1000 | 3.9 | 1,056 | 1,800 W (2,400 surge) | 28.4 | 600 | LiFePO4 | 3,000 to 80% | $500 | $0.47 | See it at Anker SOLIXCheck price on Amazon |
| DJI Power 1000 | 3.7 | 1,024 | 2,200 W (4,400 surge) | 28.7 | 800 | LiFePO4 | 4,000 to 70% | $699 | $0.68 | See it at DJI |
| Goal Zero Yeti 1000 | 3.1 | 998 | 2,000 W (3,600 surge) | 35.3 | 900 | LiFePO4 | 4,000 to 80% | $1,200 | $1.20 | See it at Goal Zero |
| BLUETTI AC180 | 3.6 | 1,152 | 1,800 W (2,700 surge) | 35.3 | 500 | LiFePO4 | 3,500 to 80% | $499 | $0.43 | See it at BLUETTICheck price on Amazon |
| Jackery Explorer 1500 Ultra | 3.1 | 1,536 | 1,800 W (3,600 surge) | 38.6 | 800 | LiFePO4 | 4,000 to 70% | $1,079 | $0.70 | See it at JackeryCheck price on Amazon |
| Jackery Explorer 2000 v2 | 3.5 | 2,042 | 2,200 W (4,400 surge) | 39.5 | 400 | LiFePO4 | 4,000 to 70% | $899 | $0.44 | See it at JackeryCheck price on Amazon |
| Zendure SuperBase Pro 1500 | 3.1 | 1,440 | 2,000 W (4,000 surge) | 41.5 | 600 | LiFePO4 | – | $1,699 | $1.18 | See it at Zendure |
| Anker SOLIX C2000 Gen 2 | 3.9 | 2,048 | 2,400 W (4,000 surge) | 41.7 | 800 | LiFePO4 | 4,000 to 80% | $1,000 | $0.49 | See it at Anker SOLIX |
| EcoFlow DELTA 3 Max | 3.8 | 2,048 | 2,400 W | 44.8 | 500 | LiFePO4 | – | $899 | $0.44 | See it at EcoFlow |
| Zendure SuperBase Pro 2000 | 3.2 | 2,096 | 2,000 W (4,000 surge) | 46.5 | 600 | NMC | – | $1,999 | $0.95 | See it at ZendureCheck price on Amazon |
| DJI Power 2000 | 3.7 | 2,048 | 3,000 W | 48.5 | 1,800 | LiFePO4 | 4,000 to 80% | $1,299 | $0.63 | See it at DJICheck price on Amazon |
| OUPES Mega 2 | 4.1 | 2,048 | 2,500 W (5,400 surge) | 48.5 | 2,100 | LiFePO4 | 3,500 to 80% | $699 | $0.34 | See it at OUPES |
| OUPES Mega 2 Pro | 4.3 | 2,048 | 2,500 W | 48.8 | 1,000 | LiFePO4 | 4,000 to 80% | $699 | $0.34 | See it at OUPES |
| Goal Zero Yeti 1500 | 3.4 | 1,505 | 2,000 W (3,600 surge) | 52.8 | 900 | LiFePO4 | 4,000 to 80% | $1,500 | $1.00 | See it at Goal ZeroCheck price on Amazon |
| BLUETTI Elite 200 V2 | 3.7 | 2,074 | 2,600 W | 53.4 | 1,000 | LiFePO4 | 6,000 to 80% | $1,199 | $0.58 | See it at BLUETTICheck price on Amazon |
| 4Patriots Patriot Power Solar Generator 2200X | 3.0 | 2,240 | 2,200 W (4,400 surge) | 57.5 | – | LiFePO4 | 4,000 | $3,500 | $1.56 | See it at 4Patriots |
| BLUETTI Elite 300 | 3.5 | 3,014 | 2,400 W (4,800 surge) | 58 | 1,200 | LiFePO4 | 6,000 to 80% | $1,499 | $0.50 | See it at BLUETTICheck price on Amazon |
| Jackery HomePower 3000 | 3.6 | 3,072 | 3,600 W (7,200 surge) | 59.5 | 1,000 | LiFePO4 | 4,000 to 70% | $1,399 | $0.46 | See it at JackeryCheck price on Amazon |
| BLUETTI AC200L | 3.9 | 2,048 | 2,400 W (3,600 surge) | 62.4 | 1,200 | LiFePO4 | 3,000 to 80% | $847 | $0.41 | See it at BLUETTICheck price on Amazon |
| Anker SOLIX F2600 | 3.4 | 2,560 | 2,400 W (2,800 surge) | 69.7 | 1,000 | LiFePO4 | 3,000 to 80% | $1,500 | $0.59 | See it at Anker SOLIXCheck price on Amazon |
| EcoFlow DELTA 3 Ultra | 3.9 | 3,072 | 3,600 W (7,200 surge) | 72.1 | 800 | LiFePO4 | – | $1,399 | $0.46 | See it at EcoFlow |
| Jackery HomePower 3600 Plus | 4.0 | 3,584 | 3,600 W (7,200 surge) | 77.2 | 1,000 | LiFePO4 | 6,000 to 70% | $1,709 | $0.48 | See it at JackeryCheck price on Amazon |
| OUPES Mega 3 | 4.0 | 3,072 | 3,600 W (7,000 surge) | 83.3 | 2,100 | LiFePO4 | 3,500 to 80% | $1,099 | $0.36 | See it at OUPES |
| BLUETTI Apex 300 | 3.5 | 2,765 | 3,840 W | 83.8 | 2,400 | LiFePO4 | 6,000 to 80% | $1,699 | $0.61 | See it at BLUETTICheck price on Amazon |
| BLUETTI Elite 400 | 3.6 | 3,840 | 2,600 W (5,200 surge) | 86 | 1,000 | LiFePO4 | – | $1,799 | $0.47 | See it at BLUETTICheck price on Amazon |
| Anker SOLIX F3000 | 4.1 | 3,072 | 3,600 W (7,200 surge) | 91.5 | 2,400 | LiFePO4 | 4,000 to 80% | $1,500 | $0.49 | See it at Anker SOLIXCheck price on Amazon |
| EcoFlow DELTA Pro 3 | 3.7 | 4,096 | 4,000 W (8,000 surge) | 113.5 | 2,600 | LiFePO4 | 4,000 to 80% | $2,799 | $0.68 | See it at EcoFlowCheck price on Amazon |
| Goal Zero Yeti PRO 4000 | 3.6 | 3,994 | 3,600 W (7,200 surge) | 115.7 | 3,000 | LiFePO4 | 4,000 to 80% | $4,000 | $1.00 | See it at Goal Zero |
| Zendure SuperBase V4600 | 3.7 | 4,608 | 3,800 W (5,000 surge) | 121 | 3,000 | LiFePO4 | 6,000 | $4,999 | $1.08 | See it at Zendure |
| Zendure SuperBase V6400 | 3.1 | 6,438 | 3,800 W (5,000 surge) | 130 | 3,000 | Li-ion (unspecified) | 3,000 | $6,999 | $1.09 | See it at Zendure |
| Anker SOLIX F3800 | 3.6 | 3,840 | 6,000 W (9,000 surge) | 132.3 | 2,400 | LiFePO4 | 3,000 to 80% | $2,200 | $0.57 | See it at Anker SOLIXCheck price on Amazon |
| Jackery Explorer 5000 Plus | 3.4 | 5,040 | 7,200 W (14,400 surge) | 134.5 | – | LiFePO4 | 4,000 to 70% | $3,149 | $0.62 | See it at JackeryCheck price on Amazon |
| Anker SOLIX F3800 Plus | 3.8 | 3,840 | 6,000 W (9,000 surge) | 136.7 | 3,200 | LiFePO4 | 3,000 to 80% | $2,600 | $0.68 | See it at Anker SOLIXCheck price on Amazon |
Tick appliances from the device table, or add your own appliance using its label or a plug-in watt meter. Keep a preset only if it matches the equipment you plan to run.
Any picks earlier on this page use the starting appliances. Your changes update the calculator and its table below.
For a well pump, furnace or house inlet, check the connection before choosing by watts. The home-backup guide explains what an electrician needs to check.
Your entries stay in this tab. They are not saved in a link or sent with calculator events.
Use running watts while the appliance is on. For a cycling fridge or pump, enter the hours connected and the percentage of that time it runs. If your watts are already a daily average, leave duty at 100%. Startup watts must include the full startup draw, not just the extra watts.
627Wh
73W
124W
Devices draw 444 Wh over1 days. 444 ÷ 0.85 × 1.2 gives the rated Wh to buy.
The loss allowance is an estimate. Headroom adds 20% to the energy requirement. All selected appliances can run together; copies in the same custom row can start together.
DC rows use this separate estimate. The default keeps the same loss allowance as AC; change it only if you know the efficiency of your cable and converter. Port voltage, current and shared limits still need checking.
46 of 56 tracked units fit
Other jobs: a day of home backup, two nights of camping, a day in an RV, a working day in a van. Every unit: the best picks page.
They are arithmetic: capacity × 0.85 ÷ device watts. Real hours depend on temperature, battery age and the exact device; the constants are stated so you can adjust them, and every device draw in the calculator can be changed.
Shorten the hours, drop a device, or move it to DC. The calculator recomputes as you change it, and the checkbox under its table shows every unit with the reason it fails, which usually points at one device.
Because the job is fixed, and once a unit clears it, more capacity is weight and money for nothing. Choose the weight, recharge time and expansion options you will actually use.
