The Edit — Home & Garden
How Long Will a Power Station Run a Fridge?
Divide the station's watt-hours by what your fridge uses in a day. An efficient fridge uses about half a kilowatt-hour a day and a big one up to 4, so a 1,024 Wh station lasts from about 6 hours to 2 days.
This guide is research-led: we have not handled these units ourselves. If you buy through our links we may earn a commission — it never changes a pick.Research-led, nothing handled. We may earn from links; it never changes a pick. How we choose
This page works out run time from the station’s watt-hours and the fridge’s daily energy use, with 4 stations from the power stations guide, ranked as How we choose describes. Nothing here was handled or tested.
Best for A fridge overnight
Watch for Short for a big fridge
Best for Automatic backup
Watch for Same 1,024 Wh
Best for Quick refills
Watch for Chemistry not stated
Best for A big fridge for days
Watch for 99 lb
Run time is watt-hours divided by your fridge’s daily use
A fridge’s compressor cycles on and off, so its average draw matters more than the number on the plug. Wikipedia’s Refrigerator article puts the most efficient US fridges at about 0.5 kWh a day, or 20 W continuously, and large ones with big freezers and icemakers at up to 4 kWh a day, or 170 W. Divide the station’s watt-hours by that daily figure and you have days of run time, before losses.
| Station | Efficient fridge, 0.5 kWh a day | Large fridge, 4 kWh a day |
|---|---|---|
| 293 Wh station | About 14 hours | Under 2 hours |
| 1,024 Wh station | About 2 days | About 6 hours |
| 3,600 Wh station | About 7 days | About 21 hours |
The station’s inverter uses some of the battery itself, so real hours come in shorter than this table.
Your fridge’s EnergyGuide label gives the daily figure
The yellow EnergyGuide label, which the FTC says tells you how much energy an appliance uses, states a fridge’s estimated yearly electricity use. Divide that by 365 for kilowatt-hours a day. The 0.5 kWh a day above works out to about 183 kWh a year. If the label is gone, the FTC says to look inside the fridge, or on the maker’s website.
A 1,024 Wh station carries an efficient fridge through a night and a day
The Jackery Explorer 1000 v2 and the EcoFlow DELTA 3 both hold 1,024 Wh, about 2 days for an efficient fridge. The Jackery gives 1,500 W continuous with a 3,000 W surge; the EcoFlow 1,800 W with a 3,600 W surge. That surge covers a compressor starting. Both are LFP, which Jackery and EcoFlow rate for 4,000 cycles.
Jackery Explorer 1000 v2 Portable Power Station
1,024 Wh of LiFePO4 with 1,500 W continuous and a 3,000 W surge for the compressor starting.
Current price shown on Amazon. We may earn a commission.
| Capacity | 1,024 Wh |
|---|---|
| AC output | 1,500 W, 3,000 W surge |
| Switchover | 20 ms stated |
1,024 Wh, about 2 days for an efficient fridge.
Buy it if
- An efficient fridge for about 2 days
Don't buy it if
- About 6 hours for a big fridge with an icemaker
EcoFlow DELTA 3 Portable Power Station
1,024 Wh of LFP with 1,800 W continuous, a 3,600 W surge and a stated switchover under 10 ms.
Current price shown on Amazon. We may earn a commission.
| Capacity | 1,024 Wh |
|---|---|
| AC output | 1,800 W, 3,600 W surge |
| Switchover | Under 10 ms stated |
The same 1,024 Wh, left plugged in to take over when the grid drops.
Buy it if
- Sitting between the wall and the fridge, taking over when the grid drops
Don't buy it if
- The same 1,024 Wh as the Jackery
Anker’s 49-minute refill suits outages that come and go
The Anker SOLIX C1000 Gen 2 holds the same 1,024 Wh but refills from the wall in 49 minutes, by Anker’s figure. When rolling blackouts bring power back for an hour at a time, that is long enough to fill it again. It gives 2,000 W continuous, and Anker SOLIX states a 10 ms switchover.
Anker SOLIX C1000 Gen 2 Portable Power Station
1,024 Wh with 2,000 W continuous and a 49-minute wall charge, so a recharge fits between outages.
Current price shown on Amazon. We may earn a commission.
| Capacity | 1,024 Wh |
|---|---|
| AC output | 2,000 W, 3,000 W surge |
| Recharge | 49 min from the wall |
1,024 Wh that refills in 49 minutes, for outages that come and go.
Buy it if
- Rolling blackouts, where the power comes back for an hour
Don't buy it if
- Battery chemistry not stated by Anker
A large fridge through a long outage needs 3,600 Wh
The EcoFlow DELTA Pro holds 3,600 Wh, about 7 days for an efficient fridge and most of a day for a 4 kWh one. It gives 3,600 W continuous with a 7,200 W surge, and takes up to 1,600 W of solar to refill in daylight. At 99 lb it stays beside the fridge.
EcoFlow DELTA Pro Portable Power Station, 3,600 Wh
3,600 Wh of LFP with 3,600 W continuous and a 7,200 W surge, at 99 lb.
Current price shown on Amazon. We may earn a commission.
| Capacity | 3,600 Wh |
|---|---|
| AC output | 3,600 W, 7,200 W surge |
| Solar input | Up to 1,600 W |
3,600 Wh, for a big fridge or an outage that lasts days.
Buy it if
- An efficient fridge for about a week, or a big one for most of a day
Don't buy it if
- 99 lb
Keep the doors shut and the station full
Every opening lets cold out, and the compressor spends watt-hours putting it back. Keep a thermometer in the fridge, as Ready.gov advises, and charge the station monthly through winter. The power stations guide compares all 6 stations, a NOAA weather radio carries the warnings when phones are flat, the frozen pipes guide covers the rest of the house, and the polar vortex guide covers this month’s cold.
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