Best Power Station for CPAP in 2026
Updated July 2026 Ranked by computed spec math, never by commission. How we rank
How we ranked these
We ranked by runtime per dollar at a 60W continuous draw, pure-sine-wave output (required for CPAP compressors), noise, weight, and UPS switchover for sleep-through-the-outage reliability. Turn the heated humidifier off during outages - it can triple power draw.
Top pick
#1 — Jackery Explorer 2000 v2
2,042Wh · 2,200W (4,400W surge) · 4,000 cycles · 39 lb · $1,499 MSRP
≈ 29 hours for this use case (CPAP (no humidifier, 60W), 85% inverter efficiency).
Two nights of CPAP per charge, lightest 2kWh unit sold, and 4,000-cycle LFP means a decade of nightly use. Its 20ms switchover is fast enough that most CPAP machines ride through without restarting.
Best UPS mode
#2 — EcoFlow Delta 3 Plus
1,024Wh · 1,800W (3,600W surge) · 4,000 cycles · 28 lb · $799 MSRP
≈ 15 hours for this use case (CPAP (no humidifier, 60W), 85% inverter efficiency).
10ms switchover is the fastest in class - plug your CPAP through it every night and an outage never wakes you. One night of runtime (14h at 60W), expandable to 5kWh later.
Budget pick
#3 — Bluetti AC70
768Wh · 1,000W (2,000W surge) · 3,000 cycles · 22.5 lb · $649 MSRP
≈ 11 hours for this use case (CPAP (no humidifier, 60W), 85% inverter efficiency).
About 10 hours at 60W - one full night - for roughly half the price of the 2kWh class. 22.5 lb makes it the travel choice too.
Side-by-side
| Pick | Capacity | Output / surge | 240V | Cycles | Weight | MSRP | Runtime* |
|---|---|---|---|---|---|---|---|
| Jackery Explorer 2000 v2 | 2,042 Wh | 2,200 / 4,400 W | No | 4,000 | 39 lb | $1,499 | 29h |
| EcoFlow Delta 3 Plus | 1,024 Wh | 1,800 / 3,600 W | No | 4,000 | 28 lb | $799 | 15h |
| Bluetti AC70 | 768 Wh | 1,000 / 2,000 W | No | 3,000 | 22.5 lb | $649 | 11h |
*Runtime for CPAP (no humidifier, 60W) at 85% inverter efficiency. Your load differs — size it exactly.
Frequently asked questions
How long will a 2,000Wh power station run a CPAP?
A 60W CPAP with the humidifier off draws about 72Wh per hour after inverter losses, so a 2,042Wh unit like the Jackery 2000 v2 delivers roughly 28 hours - about two full nights of sleep.
Can a power station run a CPAP with the heated humidifier on?
Yes, but runtime drops sharply: heated humidification raises draw from ~60W to 90-150W, cutting runtime by half or more. During outages, run passive (non-heated) humidification.
Do I need pure sine wave for a CPAP machine?
Yes. Every unit in our database outputs pure sine wave AC, which CPAP manufacturers require. Cheap modified-sine inverters can damage CPAP motors and void warranties.
What size battery do I need for a week of CPAP backup?
Seven nights x 8 hours x 60W ÷ 0.85 efficiency ≈ 3,950Wh. A 4kWh unit like the EcoFlow Delta Pro 3, or a 2kWh unit recharged from a 200W solar panel each day, covers a week-long outage.