How Long Will the Anker SOLIX C800 Plus 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 | 768Wh (LFP) |
|---|---|
| Usable energy | 707Wh (92% via 12V/USB DC output) |
| Continuous AC output | 1200W |
| Surge rating | 1600W |
| CPAP machine running watts | 30W |
| Startup watts | 30W |
| Average draw | 30W |
| Estimated runtime | 24 hours |
| Energy per day of typical use | 240Wh |
768Wh × 0.92 = 707Wh usable ÷ 30W average = 23.6 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 Anker SOLIX C800 Plus accepts up to 300W of solar input. In real conditions that harvests about 1.1 kWh on a sunny day (5 peak-sun hours), or about 750Wh with one 200W panel.
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 Anker SOLIX C800 Plus 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 Anker SOLIX C800 Plus’s DC port instead of the AC outlet avoids inverter losses: about 54Wh more usable energy.
- The Anker SOLIX C800 Plus 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 |
|---|---|---|---|---|
| Jackery Explorer 500 | 518Wh | 500W | 16 hours | Yes |
| EcoFlow River 2 Pro | 768Wh | 800W | 24 hours | Yes |
| Bluetti AC70 | 768Wh | 1000W | 24 hours | Yes |
| Jackery Explorer 1000 | 1002Wh | 1000W | 31 hours | Yes |
| EcoFlow Delta 2 | 1024Wh | 1800W | 31 hours | Yes |
| DJI Power 1000 | 1024Wh | 2200W | 31 hours | Yes |
| Anker SOLIX C1000 | 1056Wh | 1800W | 32 hours | Yes |
| Jackery Explorer 1000 v2 | 1070Wh | 1500W | 33 hours | Yes |
FAQ
Will the Anker SOLIX C800 Plus run a CPAP machine overnight?
Yes. Eight hours uses about 240Wh, roughly 34% of the Anker SOLIX C800 Plus’s usable capacity.
How long does the Anker SOLIX C800 Plus take to recharge with solar?
With its maximum 300W of solar input it refills in about 3.4 hours of strong sun. With a single 200W panel, expect about 5.1 hours of full sun.
Is the Anker SOLIX C800 Plus 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.