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How long will a power station run it?

Runtime is capacity × 85% usable ÷ average load. A fridge doesn’t draw its nameplate watts all day because its compressor cycles, so we use its daily energy instead: a full-size fridge on a 1,024 Wh station runs for about 10–19 hours, depending on the fridge.

Start with a common setup

Pick the closest match, then fine-tune the list below.

Keep food cold: a full-size fridge and a chest or upright freezer. Change anything below.

Your appliances

2 items · adjust quantities or edit watts

  • Refrigerator (full-size)

    400 W running · 1,200 W starting

    1
    Motor start surge

  • Freezer (chest or upright)

    500 W running · 1,000 W starting

    1
    Motor start surge

Add appliances

86 household appliances, tools and RV loads

Essentials2 added8

  • Refrigerator (full-size)

    400 W running · 1,200 W starting

    1
    HON · highMotor start surge

  • Freezer (chest or upright)

    500 W running · 1,000 W starting

    1
    CHA · mediumMotor start surge

  • Mini fridge or cooler

    100 W running · 600 W starting

    CHA · mediumMotor start surge

  • Sump pump 1/3 HP

    800 W running · 1,600 W starting

    CHA · highMotor start surge

  • Sump pump 1/2 HP

    1,050 W running · 2,150 W starting

    CHA · highMotor start surge

  • Well pump 1/2 HP

    1,000 W running · 2,000 W starting

    CHA · mediumMotor start surgeMay need 240V

  • Well pump 1 HP

    2,000 W running · 4,000 W starting

    CHA · mediumMotor start surgeNeeds 240V

  • Electric water heater

    4,500 W running · 4,500 W starting

    HON · highNeeds 240V
Heating and cooling14

  • Furnace fan 1/8 HP (gas or oil)

    300 W running · 500 W starting

    HON · highMotor start surge

  • Furnace fan 1/6 HP (gas or oil)

    500 W running · 750 W starting

    HON · highMotor start surge

  • Furnace fan 1/4 HP (gas or oil)

    600 W running · 1,000 W starting

    HON · highMotor start surge

  • Furnace fan 1/3 HP (gas or oil)

    700 W running · 1,400 W starting

    HON · highMotor start surge

  • Furnace fan 1/2 HP (gas or oil)

    875 W running · 2,350 W starting

    HON · highMotor start surge

  • Window air conditioner 5000 BTU

    600 W running · 1,200 W starting

    CHA · mediumMotor start surge

  • Window air conditioner 10000 BTU

    1,500 W running · 2,400 W starting

    HON · highMotor start surge

  • Central air conditioner 2 ton

    2,500 W running · 4,500 W starting

    CHA · mediumMotor start surgeNeeds 240V

  • Central air conditioner 3 ton

    3,500 W running · 6,000 W starting

    CHA · mediumMotor start surgeNeeds 240V

  • Central air conditioner 4 ton

    5,000 W running · 8,000 W starting

    CHA · mediumMotor start surgeNeeds 240V

  • Electric space heater

    1,500 W running · 1,500 W starting

    CHA · high

  • Radiant heater

    1,300 W running · 1,300 W starting

    HON · high

  • Ceiling fan

    75 W running · 75 W starting

    CHA · high

  • Box or window fan

    200 W running · 200 W starting

    CHA · mediumMotor start surge
Kitchen13

  • Microwave oven

    1,500 W running · 1,500 W starting

    CHA · high

  • Coffee maker

    1,200 W running · 1,200 W starting

    HON · medium

  • Toaster

    1,200 W running · 1,200 W starting

    GEN · medium

  • Electric range (one burner)

    2,400 W running · 2,400 W starting

    CHA · highMay need 240V

  • Electric fry pan

    1,500 W running · 1,500 W starting

    HON · high

  • Electric grill (tabletop)

    1,650 W running · 1,650 W starting

    CHA · high

  • Slow cooker

    270 W running · 270 W starting

    HON · high

  • Blender

    600 W running · 1,200 W starting

    HON · mediumMotor start surge

  • Air fryer

    1,500 W running · 1,500 W starting

    CHAPDF · lowCheck your nameplate

  • Portable induction cooktop

    1,800 W running · 1,800 W starting

    CHA · medium

  • Electric smoker

    1,200 W running · 1,200 W starting

    CHA · medium

  • Dishwasher (cool dry cycle)

    216 W running · 540 W starting

    HON · mediumMotor start surge

  • Dishwasher (heated dry)

    2,400 W running · 2,400 W starting

    CHA · medium
Laundry3

  • Washing machine

    1,200 W running · 2,300 W starting

    HON · highMotor start surge

  • Electric clothes dryer

    6,000 W running · 6,750 W starting

    HON · highMotor start surgeNeeds 240V

  • Gas clothes dryer

    700 W running · 2,200 W starting

    SMH · lowMotor start surgeCheck your nameplate
Electronics9

  • TV (flat screen 20 to 55 inch)

    400 W running · 400 W starting

    CHA · high

  • Desktop computer

    800 W running · 800 W starting

    HON · medium

  • Laptop or phone charger

    250 W running · 250 W starting

    CHA · medium

  • LCD monitor

    30 W running · 30 W starting

    HON · high

  • Printer

    600 W running · 600 W starting

    HON · medium

  • Wi-Fi router or modem

    20 W running · 20 W starting

    CHA · high

  • Satellite receiver

    250 W running · 250 W starting

    HON · medium

  • Radio

    200 W running · 200 W starting

    HON · high

  • Home security system

    40 W running · 40 W starting

    CHA · high
Lighting1

  • LED bulb (each)

    15 W running · 15 W starting

    CHA · high
Medical2

  • CPAP machine (no heated humidifier)

    60 W running · 60 W starting

    CHA · medium

  • CPAP machine (heated humidifier)

    120 W running · 120 W starting

    CHA · medium
RV and outdoor8

  • RV air conditioner 11000 BTU

    1,010 W running · 1,600 W starting

    HON · highMotor start surge

  • RV air conditioner 13500 BTU

    2,000 W running · 3,500 W starting

    HON · highMotor start surge

  • RV air conditioner 15000 BTU

    2,500 W running · 4,500 W starting

    HON · highMotor start surge

  • RV refrigerator

    600 W running · 1,000 W starting

    HON · mediumMotor start surge

  • RV microwave

    1,200 W running · 1,200 W starting

    CHA · medium

  • RV water heater (electric)

    1,500 W running · 1,500 W starting

    CHA · medium

  • String or LED camp lights

    200 W running · 200 W starting

    CHA · medium

  • Portable projector

    300 W running · 300 W starting

    CHA · medium
Garage and tools21

  • Garage door opener

    720 W running · 1,420 W starting

    HON · highMotor start surge

  • Circular saw (7-1/4 in)

    1,800 W running · 3,600 W starting

    CHA · highMotor start surge

  • Table saw (10 in)

    3,000 W running · 6,000 W starting

    CHA · highMotor start surge

  • Miter saw (10 in)

    1,800 W running · 3,600 W starting

    CHA · mediumMotor start surge

  • Reciprocating saw

    1,200 W running · 2,400 W starting

    CHA · mediumMotor start surge

  • Angle grinder (4-1/2 in)

    1,800 W running · 3,600 W starting

    CHA · mediumMotor start surge

  • Electric drill (1/2 in)

    600 W running · 1,200 W starting

    CHA · highMotor start surge

  • Hammer drill

    1,200 W running · 2,400 W starting

    CHA · mediumMotor start surge

  • Belt sander

    1,200 W running · 2,400 W starting

    CHA · mediumMotor start surge

  • Air compressor 1/2 HP

    975 W running · 1,600 W starting

    HON · highMotor start surge

  • Air compressor 1 HP

    1,600 W running · 4,500 W starting

    CHA · highMotor start surge

  • Air compressor 2 HP

    2,500 W running · 7,500 W starting

    CHA · mediumMotor start surgeNeeds 240V

  • Air compressor 3 HP

    3,500 W running · 10,500 W starting

    CHA · mediumMotor start surgeNeeds 240V

  • Pressure washer 1500 PSI

    1,500 W running · 3,000 W starting

    CHA · mediumMotor start surge

  • Pressure washer 2500 PSI

    2,500 W running · 5,000 W starting

    CHA · mediumMotor start surge

  • Welder (120V)

    2,500 W running · 5,000 W starting

    CHA · mediumMotor start surge

  • Welder (240V)

    8,000 W running · 16,000 W starting

    CHA · lowMotor start surgeNeeds 240VCheck your nameplate

  • Work light (LED)

    25 W running · 25 W starting

    CHA · high

  • Work light (halogen 500 W)

    500 W running · 500 W starting

    CHA · high

  • Job-site heater

    3,000 W running · 3,000 W starting

    CHA · medium

  • Battery charger (heavy duty)

    2,000 W running · 2,000 W starting

    CHA · medium
Motors (by horsepower)7

  • Motor 1/4 HP (capacitor-start capacitor-run)

    400 W running · 850 W starting

    HON · highMotor start surge

  • Motor 1/3 HP (capacitor-start capacitor-run)

    450 W running · 975 W starting

    HON · highMotor start surge

  • Motor 1/2 HP (capacitor-start capacitor-run)

    600 W running · 1,300 W starting

    HON · highMotor start surge

  • Motor 3/4 HP (capacitor-start capacitor-run)

    850 W running · 1,900 W starting

    HON · highMotor start surgeMay need 240V

  • Motor 1 HP (capacitor-start capacitor-run)

    1,000 W running · 2,300 W starting

    HON · highMotor start surgeMay need 240V

  • Motor 1.5 HP (capacitor-start capacitor-run)

    1,600 W running · 3,200 W starting

    HON · highMotor start surgeNeeds 240V

  • Motor 2 HP (capacitor-start capacitor-run)

    2,000 W running · 3,900 W starting

    HON · highMotor start surgeNeeds 240V
Running900 W
Peak1,700 W
Size2,500 W
Recommended generator size2 items

2,500W class

Your 1,700 W peak + 20% margin = 2,040 W, rounded up to the next 500 W.

Running
900W
Everything on at once
Peak
1,700W
+800 W when the refrigerator starts

Your list uses about 5.1–6.1 kWh a day.

refrigerator: 1.1–2.1 kWh a day (not sure, ENERGY STAR/DOE ranges), not its nameplate watts. Hours per day: freezer 8 h. These are example estimates; change them under “Edit watts and hours”.

Of the 11 power stations we track:9 fit well1 can’t be confirmed1 won’t work

EcoFlow power stationDELTA 3 Plus

Fits
Capacity
1,024 Wh
Continuous
1,800 W
Surge
3,600 W

1,800 W continuous covers your 900 W load plus 20%.

Runtime on 1,024 Wh3.5–4 h
Manufacturer spec page (opens in a new tab)Checked 2026-09-26

Anker SOLIX power stationC1000 Gen 2

Fits
Capacity
1,024 Wh
Continuous
2,000 W
Surge
3,000 W

2,000 W continuous covers your 900 W load plus 20%.

Runtime on 1,024 Wh3.5–4 h
Manufacturer spec page (opens in a new tab)Checked 2026-09-26

Jackery power stationExplorer 1000 v2

Fits
Capacity
1,070 Wh
Continuous
1,500 W
Surge
3,000 W

1,500 W continuous covers your 900 W load plus 20%.

Runtime on 1,070 Wh3.5–4.5 h
Manufacturer spec page (opens in a new tab)Checked 2026-09-26

Bluetti power stationAC180

Fits
Capacity
1,152 Wh
Continuous
1,800 W
Surge
2,700 W

1,800 W continuous covers your 900 W load plus 20%.

Runtime on 1,152 Wh4–4.5 h
Manufacturer spec page (opens in a new tab)Checked 2026-09-26

Jackery power stationExplorer 2000 v2

Fits
Capacity
2,042 Wh
Continuous
2,200 W
Surge
4,400 W

2,200 W continuous covers your 900 W load plus 20%.

Runtime on 2,042 Wh7–8 h
Manufacturer spec page (opens in a new tab)Checked 2026-09-26

Anker SOLIX power stationC2000 Gen 2

Fits
Capacity
2,048 Wh
Continuous
2,400 W
Surge
4,000 W

2,400 W continuous covers your 900 W load plus 20%.

Runtime on 2,048 Wh7–8 h
Manufacturer spec page (opens in a new tab)Checked 2026-09-26

Jackery power stationHomePower 3000

Fits
Capacity
3,072 Wh
Continuous
3,600 W
Surge
7,200 W

3,600 W continuous covers your 900 W load plus 20%.

Runtime on 3,072 Wh10–12 h
Manufacturer spec page (opens in a new tab)Checked 2026-09-26

Anker SOLIX power stationF3800

Fits
Capacity
3,840 Wh
Continuous
6,000 W
Surge
9,000 W

6,000 W continuous covers your 900 W load plus 20%.

Runtime on 3,840 Wh13–15 h
Manufacturer spec page (opens in a new tab)Checked 2026-09-26

EcoFlow power stationDELTA Pro 3

Fits
Capacity
4,096 Wh
Continuous
4,000 W
Surge
6,000 W

4,000 W continuous covers your 900 W load plus 20%.

Runtime on 4,096 Wh14–16 h
Manufacturer spec page (opens in a new tab)Checked 2026-09-26

EcoFlow power stationDELTA 3 Classic

Can’t confirm start
Capacity
1,024 Wh
Continuous
1,800 W
Surge
Not published

Surge output isn't published, so we can't confirm it starts the refrigerator (1,700 W peak).

Runtime on 1,024 Wh3.5–4 h
Manufacturer spec page (opens in a new tab)Checked 2026-09-26
1 more is too small or can’t supply 240V
Assumptions: 20% margin, 85% usable battery

Sources suggest 20–25% headroom over peak demand TTH · medium.

Inverter and battery losses. 85% is a common rule OUP · medium; EcoFlow’s own runtime examples imply 80%.

How we calculate

A full-size fridge on each station

1.1–2.1 kWh a day (the range across top-freezer, side-by-side and French-door models). Starting surge up to 1,200 W.

Power stationCapacityRuntimeCan it start the fridge?
EcoFlow RIVER 3 Plus 286 Wh 3–5.5 h Can’t confirm start
EcoFlow DELTA 3 Classic 1,024 Wh 10–19 h Can’t confirm start
EcoFlow DELTA 3 Plus 1,024 Wh 10–19 h Fits
Anker SOLIX C1000 Gen 2 1,024 Wh 10–19 h Fits
Jackery Explorer 1000 v2 1,070 Wh 10–20 h Fits
Bluetti AC180 1,152 Wh 11–21 h Fits
Jackery Explorer 2000 v2 2,042 Wh 20–38 h Fits
Anker SOLIX C2000 Gen 2 2,048 Wh 20–38 h Fits
Jackery HomePower 3000 3,072 Wh 1–2.5 days Fits
Anker SOLIX F3800 3,840 Wh 1.5–3 days Fits
EcoFlow DELTA Pro 3 4,096 Wh 1.5–3 days Fits

A CPAP night (heated humidifier, 8 hours)

120 W × 8 h = 960 Wh a night before losses. Estimates only: check your device’s label and follow your clinician’s advice.

Power stationCapacityNights
EcoFlow RIVER 3 Plus286 Wh0.2
EcoFlow DELTA 3 Classic1,024 Wh0.9
EcoFlow DELTA 3 Plus1,024 Wh0.9
Anker SOLIX C1000 Gen 21,024 Wh0.9
Jackery Explorer 1000 v21,070 Wh0.9
Bluetti AC1801,152 Wh1.0
Jackery Explorer 2000 v22,042 Wh1.8
Anker SOLIX C2000 Gen 22,048 Wh1.8
Jackery HomePower 30003,072 Wh2.7
Anker SOLIX F38003,840 Wh3.4
EcoFlow DELTA Pro 34,096 Wh3.6

How we estimate runtime

runtime (h) = capacity (Wh) × 0.85 ÷ average load (W)

  • 85% usable accounts for inverter and battery losses. Change it under Assumptions in the planner (EcoFlow’s own examples imply 80%).
  • Fridges use daily energy by type (ENERGY STAR/DOE ranges), not nameplate watts.
  • Everything else uses its running watts × the hours per day you set. Anything left at “all day” is counted as running nonstop, the worst case.
  • Surge: a station must also start your biggest motor. If a maker doesn’t publish surge watts, we say we can’t confirm it rather than guess.

Full method and sources.