How Long Will the Anker SOLIX C800 Plus Run a Window AC (5,000 BTU)?
Updated 2026-10-17 · Yes
The numbers
| Battery capacity | 768Wh (LFP) |
|---|---|
| Usable energy | 653Wh (85% via AC outlets) |
| Continuous AC output | 1200W |
| Surge rating | 1600W |
| Window AC (5,000 BTU) running watts | 450W |
| Startup watts | 1300W |
| Average draw | 315W |
| Estimated runtime | 2.1 hours |
| Energy per day of typical use | 2.5 kWh |
768Wh × 0.85 = 653Wh usable ÷ 315W average = 2.1 hours
Station specs: source, checked 2026-10-17. See how we calculate runtime.
Adjust the numbers
Check the label on your window AC (5,000 BTU) 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’t fully keep up. A window AC (5,000 BTU) uses about 2.5 kWh a day at 8 hours of use, more than the Anker SOLIX C800 Plus’s best-case solar harvest. Solar will stretch the runtime but not sustain it.
Tips
- Small window units draw around 450W while the compressor runs. On hot days it rarely switches off, so expect 60–80% duty.
- You’ll still have about 750W of AC capacity left for other devices at the same time, though they’ll share the same battery.
- 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 window AC (5,000 BTU)
| Power station | Capacity | Output | Runtime | Verdict |
|---|---|---|---|---|
| Jackery Explorer 500 | 518Wh | 500W | 1.4 hours | Startup risk |
| EcoFlow River 2 Pro | 768Wh | 800W | 2.1 hours | Yes |
| Bluetti AC70 | 768Wh | 1000W | 2.1 hours | Yes |
| Jackery Explorer 1000 | 1002Wh | 1000W | 2.7 hours | Yes |
| EcoFlow Delta 2 | 1024Wh | 1800W | 2.8 hours | Yes |
| DJI Power 1000 | 1024Wh | 2200W | 2.8 hours | Yes |
| Anker SOLIX C1000 | 1056Wh | 1800W | 2.8 hours | Yes |
| Jackery Explorer 1000 v2 | 1070Wh | 1500W | 2.9 hours | Yes |
FAQ
Will the Anker SOLIX C800 Plus run a window AC (5,000 BTU) overnight?
No. At about 315W average it runs out after 2.1 hours. For a full night you need at least 3000Wh of 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.