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Can a power station run a box fan (20 in)?

Updated
Short answer

Yes. A 20-inch box fan draws about 85 W, so a 1,000 Wh power station runs it for about 10 to 11 hours and a 288 Wh unit for about 3.

Calculate your runtime
Running
85 W
56–200 W range
Start-up
102 W
Runs
100%
of the time

Box fans are easy loads. Most 20-inch models draw somewhere between 56 and 102 W, depending on the model and speed. Generator charts round a box fan up to 200 W, which is far more than most draw. We use 85 W as a planning number.

The motor's start-up bump is small, about 102 W at most, so every station in our table can run one. For a typical 8-hour night, 85 W adds up to about 680 Wh. After inverter losses, that is roughly 800 Wh of battery. A 288 Wh unit lasts about 3 hours, a 500 Wh unit about 5, a 1,000 Wh unit about 10 to 11, and a 2,000 Wh unit about 20. On low, at about 56 W, a 1,024 Wh unit stretches to about 15 hours.

A fan moves air; it does not cool it. In a real heat wave, a fan alone may not keep a room safe, and a small window AC uses about 450 W while running. Still, for staying comfortable through a summer outage on battery, a fan gives you the most hours per watt-hour of anything that cools.

How long does each power station run a box fan (20 in)?

At about 85 W on average, a box fan (20 in) runs for about 3 hrs on the 286 Wh EcoFlow RIVER 3 Plus, about 10 hrs to 11 hrs on a 1,000 Wh-class unit (998–1,070 Wh) and about 41 hrs on the 4,096 Wh EcoFlow DELTA Pro 3.

Swipe sideways for battery size, output and price →

Hours a box fan (20 in) runs on each power station, from a full charge with nothing else plugged in (15% inverter loss). Sorted by battery size.
Power stationRuntimeBatteryOutput / surgePrice range
EcoFlow RIVER 3 Plus3 hrs286 Wh600 / 1,200 W$180–$300
BLUETTI Elite 30 V23 hrs288 Wh600 / 1,500 W$180–$280
Jackery Explorer 300 v23 hrs288 Wh300 / 600 W$200–$280
Goal Zero Yeti 5005 hrs499 Wh500 / 1,000 W$340–$500
Goal Zero Yeti 1000 (6th Gen)10 hrs998 Wh2,000 / 3,600 Wlist price about $1,200
Anker SOLIX C1000 Gen 210 hrs1,024 Wh2,000 / 3,000 W$400–$600
BLUETTI Elite 100 V210 hrs1,024 Wh1,800 / 3,600 W$380–$500
DJI Power 1000 V210 hrs1,024 Wh2,600 / 2,600 W$340–$450
EcoFlow DELTA 310 hrs1,024 Wh1,800 / 3,600 W$500–$700
EcoFlow DELTA 3 Plus10 hrs1,024 Wh1,800 / 3,600 W$550–$800
Jackery Explorer 1000 v211 hrs1,070 Wh1,500 / 3,000 W$430–$560
BLUETTI AC18012 hrs1,152 Wh1,800 / 2,700 W$400–$500
Jackery Explorer 2000 v220 hrs2,042 Wh2,200 / 4,400 W$700–$1,000
Anker SOLIX C2000 Gen 220 hrs2,048 Wh2,400 / 4,000 W$700–$900
DJI Power 200020 hrs2,048 Wh3,000 / 3,600 W$700–$1,300
BLUETTI Elite 200 V221 hrs2,074 Wh2,600 / 3,900 W$700–$900
BLUETTI Apex 30028 hrs2,765 Wh3,840 / 7,680 W$1,200–$1,600
Jackery HomePower 300031 hrs3,072 Wh3,600 / 7,200 W$900–$1,500
Anker SOLIX F3800 Plus38 hrs3,840 Wh6,000 / 9,000 W$2,090–$2,700
EcoFlow DELTA Pro 341 hrs4,096 Wh4,000 / 8,000 W$2,400–$3,700

Estimate: battery Wh × 0.85 ÷ 85 W average (85 W × 1 duty). Your model may draw more or less; check its label. Prices are typical ranges we checked by hand on October 9, 2026, not live prices.

Where these numbers come from

Lasko lists its Power Plus 20-inch box fan at 73 to 102 W and the Cool Colors model at 56 to 83 W. Low speed uses the least and still moves plenty of air.

Sources

  1. Lasko Cool Colors 20-inch box fan product page · lasko.com
  2. Lasko Power Plus 20-inch box fan product page · lasko.com
  3. Home Depot product document · images.homedepot-static.com · PDF

We do not test units ourselves. Picks come from the official spec sheets and manuals, the watt-hour math on this site, and prices we check by hand. How we pick

Good fits for a box fan (20 in)

#1
Anker SOLIX C1000 Gen 2 portable power station, front view

Anker SOLIX C1000 Gen 2

$400–$600 · price checked

Capacity
1,024 Wh
Output
2,000 W (3,000 W surge)
Battery
LiFePO4, 4,000 cycles
Weight
24.9 lb
Wall charge
49 min
Solar input
600 W

Why it won: Runs a box fan (20 in) for about 10 hrs on one charge.

  • 2,000 W output runs a fridge, microwave or space heater
  • Refills from empty in under an hour from a wall outlet
  • 10 ms UPS switch-over protects a CPAP or computer
  • 4,000-cycle LiFePO4 battery in a compact 24.9 lb body
  • Capacity cannot be expanded, unlike the older C1000
  • Only one USB-A port
  • The 49-minute charge needs the app and a battery above 68°F
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Full specs and runtimes for the Anker SOLIX C1000 Gen 2
#2
Jackery Explorer 2000 v2 portable power station, front view

Jackery Explorer 2000 v2

$700–$1,000 · price checked

Capacity
2,042 Wh
Output
2,200 W (4,400 W surge)
Battery
LiFePO4, 4,000 cycles (to 70%)
Weight
39.5 lb
Wall charge
1 h 45 min
Solar input
400 W

Why it won: Runs a box fan (20 in) for about 20 hrs on one charge.

  • 2,200 W output handles a fridge plus lights, a router and a microwave
  • 39.5 lb, lighter than most stations this size
  • Full recharge from a wall outlet in under 2 hours
  • 20 ms UPS switch-over and app monitoring
  • Cannot add expansion batteries
  • Solar input tops out at 400 W
  • No 30A RV-style outlet
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Full specs and runtimes for the Jackery Explorer 2000 v2
#3
BLUETTI Elite 30 V2 portable power station, front view

BLUETTI Elite 30 V2

$180–$280 · price checked

Capacity
288 Wh
Output
600 W (1,500 W surge)
Battery
LiFePO4, 3,000 cycles
Weight
9.5 lb
Wall charge
1 h 10 min
Solar input
200 W

Why it won: Runs a box fan (20 in) for about 3 hrs on one charge.

  • Only 9.5 lb, easy to carry one-handed
  • 140 W USB-C can charge a laptop at full speed
  • Refills from a wall outlet in about 70 minutes
  • 10 ms UPS switch-over protects a router or small electronics during an outage
  • 288 Wh is only enough for phones, laptops, lights and a small fan
  • 600 W output cannot run a microwave, coffee maker or space heater normally
  • Cannot add extra batteries
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Full specs and runtimes for the BLUETTI Elite 30 V2

Make it last longer

  • • Use the low setting. It cuts the draw by about a third and still moves plenty of air.
  • • Put the fan in a window at night to pull in cooler outside air.
  • • Point it at people, not the room. A fan only cools you while air moves over your skin.
  • • If you have a USB or 12V fan, run it from the station's USB or car port to skip inverter losses.

Add the rest of your devices

Yes, it can run this, about 10 hrs for a box fan (20 in) on the Anker SOLIX C1000 Gen 2.

Step 1

What do you want to run?

  • Box fan (20 in)
    Number of Box fan (20 in): 1
Add more
Step 2

Pick a power station

2,000 W output · 3,000 W surge · full specs

For a box fan (20 in) on the Anker SOLIX C1000 Gen 2:

Yes, it can run this
Estimated runtime
10 hrs
Running load
85 W
Average draw
85 W
Biggest surge
102 W
  • • Everything fits within the 2,000 W output and 3,000 W surge rating.

Math: battery Wh × 0.85 ÷ average watts. Cold weather, battery age and screen-on time all shorten this.

Power stations that can run this

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Price ranges checked by hand on October 9, 2026. Prices change often.

About 10 hrs
1 device on Anker SOLIX C1000 Gen 2
See result

Common questions

How long will a power station run a box fan?
About 3 hours on a 288 Wh unit, 5 hours on a 500 Wh unit, 10 to 11 hours on a 1,000 Wh unit, and about 20 hours on a 2,000 Wh unit at 85 W. On low, add about half again.
How many watts does a 20-inch box fan use?
Usually 56 to 102 W, depending on the model and speed. Lasko's Cool Colors fan is listed at 56 to 83 W and its Power Plus model at 73 to 102 W.
Can a small power station run a fan all night?
Not a full 8 hours. A 288 Wh unit runs a box fan about 3 hours at 85 W, or about 4 hours on low at 56 W. The 499 Wh Goal Zero Yeti 500 gets about 7.5 hours on low, close to a full night.

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