Best power station for refrigerator backup

The short answer

For most full-size refrigerators, a LiFePO4 power station with about 1,000 Wh of capacity and at least 1,500 W of continuous output is the practical minimum. That covers the compressor's startup surge and runs a typical fridge for most of a day. For a fridge plus a freezer, or two days between recharges, step up to about 2,000 Wh.

At a glance

The picks

No.	Model	Capacity	Cont. / surge	Chemistry / fuel	Weight
01	Best overallAnker SOLIX C1000A typical fridge plus phones and lights for a one-day outageFull specs, strengths and tradeoffsCheck price on Amazon	1,056 Wh	1,800 / 2,400 W	LiFePO4	28.44 lb
02	Best for solar rechargingEcoFlow DELTA 3 PlusOwners who want to recharge the fridge battery from panels each dayFull specs, strengths and tradeoffsCheck price on Amazon	1,024 Wh	1,800 / 3,600 W	LiFePO4 (LFP)	27.6 lb
03	Best for a full dayJackery Explorer 2000 v2Running a fridge through a day and night without rechargingFull specs, strengths and tradeoffsCheck price on Amazon	2,042 Wh	2,200 / 4,400 W	LiFePO4	39.5 lb
04	Lightest 1 kWhJackery Explorer 1000 v2Carrying the fridge battery up and down stairs or out to the carFull specs, strengths and tradeoffsCheck price on Amazon	1,070 Wh	1,500 / 3,000 W	LiFePO4	23.8 lb
05	Most capacity, 1 kWh classBLUETTI AC180Getting a few extra fridge hours from a mid-size unitFull specs, strengths and tradeoffsCheck price on Amazon	1,152 Wh	1,800 / 2,700 W	LiFePO4	35.27 lb
06	Best for fridge plus freezerEcoFlow DELTA 2 MaxA kitchen fridge plus a chest or upright freezerFull specs, strengths and tradeoffsCheck price on Amazon	2,048 Wh	2,400 / 4,800 W	LiFePO4 (LFP)	50 lb

• 01

  Best overallAnker SOLIX C1000
  

  A typical fridge plus phones and lights for a one-day outage

  Capacity

  1,056 Wh

  Cont./surge

  1,800 / 2,400 W

  Chem./fuel

  LiFePO4

  Weight

  28.44 lb

  Full specs, strengths and tradeoffs
  Check price on Amazon
• 02

  Best for solar rechargingEcoFlow DELTA 3 Plus
  

  Owners who want to recharge the fridge battery from panels each day

  Capacity

  1,024 Wh

  Cont./surge

  1,800 / 3,600 W

  Chem./fuel

  LiFePO4 (LFP)

  Weight

  27.6 lb

  Full specs, strengths and tradeoffs
  Check price on Amazon
• 03

  Best for a full dayJackery Explorer 2000 v2
  

  Running a fridge through a day and night without recharging

  Capacity

  2,042 Wh

  Cont./surge

  2,200 / 4,400 W

  Chem./fuel

  LiFePO4

  Weight

  39.5 lb

  Full specs, strengths and tradeoffs
  Check price on Amazon
• 04

  Lightest 1 kWhJackery Explorer 1000 v2
  

  Carrying the fridge battery up and down stairs or out to the car

  Capacity

  1,070 Wh

  Cont./surge

  1,500 / 3,000 W

  Chem./fuel

  LiFePO4

  Weight

  23.8 lb

  Full specs, strengths and tradeoffs
  Check price on Amazon
• 05

  Most capacity, 1 kWh classBLUETTI AC180
  

  Getting a few extra fridge hours from a mid-size unit

  Capacity

  1,152 Wh

  Cont./surge

  1,800 / 2,700 W

  Chem./fuel

  LiFePO4

  Weight

  35.27 lb

  Full specs, strengths and tradeoffs
  Check price on Amazon
• 06

  Best for fridge plus freezerEcoFlow DELTA 2 Max
  

  A kitchen fridge plus a chest or upright freezer

  Capacity

  2,048 Wh

  Cont./surge

  2,400 / 4,800 W

  Chem./fuel

  LiFePO4 (LFP)

  Weight

  50 lb

  Full specs, strengths and tradeoffs
  Check price on Amazon

No. 1Best overall

Anker SOLIX C1000

Best for: A typical fridge plus phones and lights for a one-day outage

1,800 W continuous and 2,400 W surge clear any household fridge's startup, and the 1,056 Wh LiFePO4 pack expands to 2,112 Wh with Anker's matching battery. Six AC outlets and up to 600 W of solar input make it a sensible center for a small outage setup.

Strengths

• Expandable to 2,112 Wh
• Under 20 ms UPS switchover per Anker
• 3,000 cycles to 80%+

Tradeoffs

• About 28 lb
• A newer C1000 Gen 2 has different specs, so match the listing to the model

• Note: A newer C1000 Gen 2 has different specs. Make sure the listing matches the model you want.

Capacity	1,056 Wh
AC output	1,800 W continuous / 2,400 W surge
Battery	LiFePO4
Weight	28.44 lb
Max solar input	600 W
Rated cycles	3,000 cycles to 80%+
AC outlets	6
Expansion	Up to 2,112 Wh with the matching expansion battery

Check price on AmazonRead the full reviewSpecs: manufacturer page, checked Nov 1, 2026

No. 2Best for solar recharging

EcoFlow DELTA 3 Plus

Best for: Owners who want to recharge the fridge battery from panels each day

Up to 1,000 W of solar input is the highest in the 1 kWh class here, so a sunny afternoon can refill most of the pack. EcoFlow lists a sub-10 ms UPS switchover and 3,600 W surge. It expands to 5 kWh with extra batteries.

Strengths

• Fast UPS switchover
• Expands to 5 kWh
• 4,000 cycles to 80%+

Tradeoffs

• Panels and extra batteries add cost and weight
• 1,024 Wh base capacity is the smallest here

Capacity	1,024 Wh
AC output	1,800 W continuous / 3,600 W surge
Battery	LiFePO4 (LFP)
Weight	27.6 lb
Max solar input	1,000 W
Rated cycles	4,000 cycles to 80%+
AC outlets	6
UPS switchover	<10 ms
Expansion	Up to 5 kWh with compatible EcoFlow extra batteries

Check price on AmazonRead the full reviewSpecs: manufacturer page, checked Nov 1, 2026

No. 3Best for a full day

Jackery Explorer 2000 v2

Best for: Running a fridge through a day and night without recharging

At 2,042 Wh, the Explorer 2000 v2 carries a typical fridge for roughly 26 to 42 hours on our math, and its 4,400 W surge rating can handle a fridge and freezer compressor starting together. It weighs 39.5 lb, light for a 2 kWh unit.

Strengths

• 2 kWh in under 40 lb
• 4,400 W surge
• Under 20 ms UPS per Jackery

Tradeoffs

• Jackery states it is not expandable
• 400 W max solar input is slow for this capacity

• Note: Jackery states the 2000 v2 is not expandable.

Capacity	2,042 Wh
AC output	2,200 W continuous / 4,400 W surge
Battery	LiFePO4
Weight	39.5 lb
Max solar input	400 W
Rated cycles	4,000 cycles to 70%+
AC outlets	3
UPS switchover	<20 ms

Check price on AmazonRead the full reviewSpecs: manufacturer page, checked Nov 1, 2026

No. 4Lightest 1 kWh

Jackery Explorer 1000 v2

Best for: Carrying the fridge battery up and down stairs or out to the car

At 23.8 lb it is the lightest unit near 1 kWh on this list, with 1,500 W continuous and 3,000 W surge. That is enough for a single fridge, though not for a fridge and a microwave at the same time.

Strengths

• 23.8 lb
• 3,000 W surge
• 4,000 cycles to 70%+

Tradeoffs

• Three AC outlets
• Jackery's FAQ says it does not recommend the unit for medical or life-support devices

• Note: Jackery's own FAQ says it does not recommend the unit for medical or life-support devices.

Capacity	1,070 Wh
AC output	1,500 W continuous / 3,000 W surge
Battery	LiFePO4
Weight	23.8 lb
Max solar input	400 W
Rated cycles	4,000 cycles to 70%+
AC outlets	3

Check price on AmazonRead the full reviewSpecs: manufacturer page, checked Nov 1, 2026

No. 5Most capacity, 1 kWh class

BLUETTI AC180

Best for: Getting a few extra fridge hours from a mid-size unit

1,152 Wh is the largest pack in the 1 kWh group here, with 1,800 W continuous and 2,700 W surge. Four AC outlets and 500 W of solar input round it out.

Strengths

• 1,152 Wh
• 1,800 W continuous
• 3,500+ cycles to 80%

Tradeoffs

• 35.27 lb, heavy for its class
• Not expandable
• BLUETTI's own store showed it out of stock when we checked

• Note: 2,700 W is BLUETTI's Power Lifting Mode for resistive heating loads. BLUETTI lists pass-through charging but no UPS switchover time.

Capacity	1,152 Wh
AC output	1,800 W continuous / 2,700 W surge
Battery	LiFePO4
Weight	35.27 lb
Max solar input	500 W
Rated cycles	3,500+ cycles to 80%
AC outlets	4

Check price on AmazonRead the full reviewSpecs: manufacturer page, checked Nov 1, 2026

No. 6Best for fridge plus freezer

EcoFlow DELTA 2 Max

Best for: A kitchen fridge plus a chest or upright freezer

2,048 Wh with 2,400 W continuous and 4,800 W surge gives the most headroom for two compressors. It expands to 6 kWh with two extra batteries and takes up to 1,000 W of solar.

Strengths

• 4,800 W surge
• Expands to 6 kWh
• 1,000 W solar input

Tradeoffs

• 50 lb
• Overkill for a single small fridge

• Note: Solar input 11 to 60 V, 500 W per port, 1,000 W across two ports. AC charging 1,800 W. X-Boost runs resistive loads up to 3,400 W. EcoFlow's page lists no UPS switchover time.

Capacity	2,048 Wh
AC output	2,400 W continuous / 4,800 W surge
Battery	LiFePO4 (LFP)
Weight	50 lb
Max solar input	1,000 W
Rated cycles	3,000 cycles to 80%+
AC outlets	6
Expansion	Up to 6 kWh with two extra batteries

Check price on AmazonRead the full reviewSpecs: manufacturer page, checked Nov 1, 2026

Full write-ups for the top three: Anker SOLIX C1000 review, EcoFlow DELTA 3 Plus review and Jackery Explorer 2000 v2 review.

Fridge sizing math: watts, surge and daily Wh

Three numbers decide whether a power station can run your refrigerator. Get them from the fridge's nameplate or EnergyGuide label where you can, and use the published ranges below where you cannot.

1. 01Running watts. Champion Power Equipment's wattage chart lists a refrigerator at 150 to 400 W while running, and a freezer at 100 to 500 W. The station's continuous rating must exceed this, plus anything else plugged in.
2. 02Startup surge. The same chart lists 800 to 1,200 W of starting watts for a fridge and 500 to 1,000 W for a freezer. The compressor pulls this for a moment each time it kicks on. The station's surge rating must cover it, or the station will trip.
3. 03Daily energy (Wh). A fridge does not run its compressor nonstop. Virginia Cooperative Extension's guide to estimating appliance use says to divide the hours a fridge is plugged in by three, because it cycles on and off to hold temperature. That is the duty cycle: roughly one-third.

Worked example

A fridge drawing 200 W while running: 200 W × 24 hours ÷ 3 = 1,600 Wh a day. Newer fridges use less. The Department of Energy's federal buying guidance gives an ENERGY STAR 18.1 cubic foot top-freezer model at 363.5 kWh a year, which works out to about 1,000 Wh a day (363,500 ÷ 365). If your fridge has an EnergyGuide label, divide its kWh-per-year figure by 365 for your own daily number. ENERGY STAR says an older fridge uses about 20% more energy than a certified model, so an old unit in a garage can land well above these figures.

Next, convert the station's rated capacity to usable energy. Inverter and conversion losses mean you will not get every rated watt-hour out as AC. We plan with 85% usable, a conservative working assumption rather than a manufacturer figure. A 1,056 Wh station gives about 898 usable Wh. Divide by the fridge's hourly draw (daily Wh ÷ 24) for runtime: 898 ÷ 41.7 ≈ 21.5 hours for a 1,000 Wh-a-day fridge, or 898 ÷ 66.7 ≈ 13.5 hours at 1,600 Wh a day.

Portable power station for a freezer, or fridge plus freezer

A chest freezer at 150 W running, cycling one-third of the time, uses about 1,200 Wh a day. Add that to a 1,600 Wh fridge and you need about 2,800 Wh a day, so even a 2 kWh station covers roughly 15 hours. If both compressors start at once, the surge can reach about 2,200 W on Champion's upper figures. That is why the two 2 kWh picks, with 4,400 W and 4,800 W surge ratings, suit a two-appliance setup.

Stretch the battery: run the fridge in shifts

You do not have to power the fridge around the clock. The CDC says food stays safe for up to 4 hours in a closed refrigerator, 48 hours in a full freezer and 24 hours in a half-full one, and the fridge should be at 40°F or below. That window lets a smaller station keep food cold in blocks.

• Turn the fridge and freezer to their coldest settings a day before a forecast storm.
• Keep doors shut. Ready.gov says a closed fridge keeps food cold for about four hours.
• Put an appliance thermometer inside so you know the actual temperature, not a guess.
• Run the fridge on the station for a few hours, then unplug it and recharge the station from solar or a generator outdoors.
• Fill empty freezer space with frozen water bottles. A full freezer holds temperature about twice as long as a half-full one, per the CDC.

Our food safety guide covers what to keep and what to throw out after an outage. BackupPowerAI's how to power a refrigerator during an outage walks through the setup in more detail.

What to look for in a battery backup for a refrigerator

Surge rating first

A station that cannot start the compressor is useless for a fridge, however large its battery. Look for a surge rating of at least 1,500 W for one fridge and 2,500 W or more for a fridge and freezer. Every pick here clears those numbers.

LiFePO4 chemistry

All six picks use lithium iron phosphate (LiFePO4) cells, which their makers rate for 3,000 to 4,000 cycles. That matters if you plan to cycle the battery daily through a long outage.

UPS switchover

A fast UPS mode lets the fridge stay plugged into the station while the station stays plugged into the wall. When the grid drops, the station takes over. EcoFlow lists under 10 ms for the DELTA 3 Plus; Anker and Jackery list under 20 ms for the C1000 and 2000 v2. A fridge does not need a perfect switchover, but it means you do not have to be home to move the plug.

A way to recharge

A battery alone buys hours. Solar input or a generator turns it into days. Compare maximum solar input: 1,000 W on the DELTA 3 Plus and DELTA 2 Max, 600 W on the C1000, 500 W on the AC180 and 400 W on both Jackerys.

Safety