How Long Will the Bluetti AC180 Run a Window AC (5,000 BTU)?
Updated 2026-10-17 · Yes
The numbers
| Battery capacity | 1152Wh (LFP) |
|---|---|
| Usable energy | 979Wh (85% via AC outlets) |
| Continuous AC output | 1800W |
| Surge rating | 2700W |
| Window AC (5,000 BTU) running watts | 450W |
| Startup watts | 1300W |
| Average draw | 315W |
| Estimated runtime | 3.1 hours |
| Energy per day of typical use | 2.5 kWh |
1152Wh × 0.85 = 979Wh usable ÷ 315W average = 3.1 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 Bluetti AC180 accepts up to 500W of solar input. In real conditions that harvests about 1.9 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 Bluetti AC180’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 1350W of AC capacity left for other devices at the same time, though they’ll share the same battery.
- The Bluetti AC180 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 |
|---|---|---|---|---|
| EcoFlow River 2 Pro | 768Wh | 800W | 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 |
| Jackery Explorer 1000 Plus | 1264Wh | 2000W | 3.4 hours | Yes |
| Goal Zero Yeti 1500X | 1516Wh | 2000W | 4.1 hours | Yes |
FAQ
Will the Bluetti AC180 run a window AC (5,000 BTU) overnight?
No. At about 315W average it runs out after 3.1 hours. For a full night you need at least 3000Wh of capacity.
How long does the Bluetti AC180 take to recharge with solar?
With its maximum 500W of solar input it refills in about 3.1 hours of strong sun. With a single 200W panel, expect about 7.7 hours of full sun.