Scenario
What size power station runs a small window AC for 4 hours?
Our best fit is the PECRON F3000LFP, at about 5.0 h calculated. The plan needs 2,100 Wh at the outlet over 4 hours and about 1,050 W at start-up, from maker specs and cited appliance figures checked .
Yes. PECRON F3000LFP runs a small window AC for 4 hours for about 5.0 h. calculated from maker specs, .
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Goal: 4 h. Hours use maker inverter efficiency where published, otherwise the 0.85 estimate, and leave out idle draw the maker doesn't publish. Stations shown out of stock or with availability not shown are skipped. How we pick.
Open this plan in the calculator to change hours, watts, solar or temperature.
Devices and assumptions
| Device | Qty | Hours a day | Running | Starting | Source |
|---|---|---|---|---|---|
| Window AC (5,000 BTU) | 1 | On the whole time | 525 W | 1,050 W | Champion wattage chart |
Together: 525 W running, about 1,050 W while the largest motor starts, and 12,600 Wh a day. Over the 4-hour goal that is 2,100 Wh at the outlet calculated.
- The AC runs the whole time; real compressors cycle, so this is conservative.
- Running and starting watts are Champion chart midpoints for a 5,000 BTU unit.
Stations that fit, cheapest first
| Station | Hours calculated | Starting headroom | List price |
|---|---|---|---|
| PECRON F3000LFP | 5.0 h | 77% | $899 |
| EcoFlow DELTA 3 Ultra | 5.0 h | 85% | $1,349 |
| Anker SOLIX F3000 | 5.0 h | 85% | $1,499.99 |
| Anker SOLIX F3800 Plus | 6.2 h | 83% | $2,599.99 |
| EcoFlow DELTA Pro 3 | 6.6 h | 87% | $2,799 |
| Goal Zero Yeti PRO 4000 | 6.5 h | 85% | $3,999.95 |
7 of 43 stations in our data fit, counting out-of-stock and unpriced ones; this table shows the cheapest in-stock ones.
What would change this answer
- Your own device watts: the label on the device beats any typical figure. Enter it in the calculator.
- Inverter idle draw: most makers don't publish it, so hours here leave it out. Small loads feel this most.
- Cold: below a maker's temperature range a station may stop discharging or charging.
Our take
Air conditioners are the load that most often surprises people: even a small window unit needs a large battery for a few hours. Check the starting watts first.
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