CPAP runtime · BLUETTI Apex 300
How Long Will a BLUETTI Apex 300 Run a CPAP?
About 7.0 nights of 8 hours for an AirSense 10 with humidifier (22 W), by our math: 2,765 Wh × 0.85 ÷ (22 W + its 20 W own draw). Across the cases below: 5.4 nights of 8 hours to 10.9 nights of 8 hours.
| Spec | BLUETTI Apex 300 |
|---|---|
| Battery | 2,765 Wh (maker spec) |
| Usable (× 0.85) | 2,350 Wh |
| Output / surge | 3,840 W / not listed |
| Own draw | 20 W (maker) |
| Solar input | 2,400 W |
| Price | $1,499 at BLUETTI |
Check Apex 300 price at BLUETTIPaid linkApex 300 on AmazonPaid link
CPAP hours on the Apex 300
| Case | Watts | On the Apex 300 |
|---|---|---|
| AirSense 10 without humidifier (ResMed) | 7 W | 10.9 nights of 8 hours |
| AirSense 10 with humidifier (ResMed) | 22 W | 7.0 nights of 8 hours |
| AirSense 10 with humidifier and heated tube (ResMed) | 34 W | 5.4 nights of 8 hours |
Wh × 0.85 ÷ (watts + the station’s own draw, where the maker lists it).
ResMed measured these for the AirSense 10; higher pressure or humidity draws more. A DC cord from the CPAP maker skips the inverter and lasts longer.
Keeping it going with solar
A night with an AirSense 10 with humidifier uses about 176 Wh, about 395 Wh from the battery with its own 20 W draw. At the Apex 300’s 2,400 W solar input and our 75% assumption, that takes about 0.2 hours of strong sun to put back; a full charge from empty takes about 1.5 hours. See solar recharge time.
Follow your doctor’s and the CPAP maker’s advice on backup power.
CPAP on similar stations
| Station | Capacity | AirSense 10 with humidifier | Price |
|---|---|---|---|
| Jackery HomePower 3000 | 3,072 Wh | 14.8 nights of 8 hours | $1,349 |
| ALLPOWERS R4000 | 3,456 Wh | 16.7 nights of 8 hours | $1,499 |
| BLUETTI Elite 200 V2 | 2,074 Wh | 6.9 nights of 8 hours | $899 |
| EcoFlow DELTA 3 Max Plus | 2,048 Wh | 9.9 nights of 8 hours | $1,199 |
Maker prices, Oct 26, 2026, unless dated. Checkout price applies.
More: BLUETTI Apex 300 specs and every runtime · CPAP runtime on every station · calculator for your own devices.
Quick answers
How long will the BLUETTI Apex 300 run a CPAP?
About 7.0 nights of 8 hours for an AirSense 10 with humidifier (22 W), by our math: 2,765 Wh × 0.85 ÷ (22 W + its 20 W own draw).
How long does the BLUETTI Apex 300 take to recharge with solar?
About 1.5 hours of strong sun from empty at its 2,400 W solar input, by our 75% assumption; clouds and winter sun add time.
“Paid link” = we earn a commission. Same math either way. See how we make money.