How Long Will the Bluetti EB3A Run a CPAP Machine?
Updated 2026-10-17 · Yes
Medical equipment: these are estimates. Test your own setup and keep a backup plan.
The numbers
| Battery capacity | 268Wh (LFP) |
|---|---|
| Usable energy | 247Wh (92% via 12V/USB DC output) |
| Continuous AC output | 600W |
| Surge rating | 1200W |
| CPAP machine running watts | 30W |
| Startup watts | 30W |
| Average draw | 30W |
| Estimated runtime | 8.2 hours |
| Energy per day of typical use | 240Wh |
268Wh × 0.92 = 247Wh usable ÷ 30W average = 8.2 hours
Station specs: source, checked 2026-10-17. See how we calculate runtime.
Adjust the numbers
Check the label on your CPAP machine and enter its real wattage.
Recharging with solar
The Bluetti EB3A accepts up to 200W of solar input. In real conditions that harvests about 750Wh on a sunny day (5 peak-sun hours).
Solar can keep up. A CPAP machine uses about 240Wh a day at 8 hours of use, so with enough panels and good sun the Bluetti EB3A can run it indefinitely.
Tips
- Figures assume the humidifier and heated tube are off. Running a CPAP from its 12V/DC adapter instead of the AC outlet stretches runtime noticeably.
- Running it from the Bluetti EB3A’s DC port instead of the AC outlet avoids inverter losses: about 19Wh more usable energy.
- The Bluetti EB3A uses LiFePO4 (LFP) cells, rated for thousands of cycles, so running it down daily won’t wear it out quickly.
Other power stations running a CPAP machine
| Power station | Capacity | Output | Runtime | Verdict |
|---|---|---|---|---|
| EcoFlow River 3 | 245Wh | 300W | 7.5 hours | Yes |
| EcoFlow River 2 | 256Wh | 300W | 7.9 hours | Yes |
| Jackery Explorer 240 v2 | 256Wh | 300W | 7.9 hours | Yes |
| Jackery Explorer 300 Plus | 288Wh | 300W | 8.8 hours | Yes |
| Anker SOLIX C300 | 288Wh | 300W | 8.8 hours | Yes |
| Goal Zero Yeti 500X | 505Wh | 300W | 15 hours | Yes |
| EcoFlow River 2 Max | 512Wh | 500W | 16 hours | Yes |
| Anker 535 PowerHouse | 512Wh | 500W | 16 hours | Yes |
FAQ
Will the Bluetti EB3A run a CPAP machine overnight?
Yes. Eight hours uses about 240Wh, roughly 97% of the Bluetti EB3A’s usable capacity.
How long does the Bluetti EB3A take to recharge with solar?
With its maximum 200W of solar input it refills in about 1.8 hours of strong sun. A single 200W panel is enough to max out its solar input.
Is the Bluetti EB3A safe for medical equipment?
These are estimates, not medical advice. Check your device’s actual power draw, test your setup before you rely on it, and always keep a backup plan approved by your doctor or equipment supplier.