Head-to-head test
EcoFlow DELTA 3000 Gen4 vs BLUETTI FridgePowerHalf Again the Battery, Twice the Inverter. Worth the Step Up?
The FridgePower is built around one appliance, and the DELTA 4 (3000) has the inverter and outlets for the rest of the kitchen too. I'd make the step up, unless a fridge is truly all you're backing up or you want a box that can grow.
Black Friday Β· 23 days out
Price to beat:FridgePower $899
We have never seen it discounted, so any real cut would be a first.
Full profiles: EcoFlow DELTA 3000 Gen4 β Β· BLUETTI FridgePower β
Written by Gunner GustafsonUpdated
Whole-Home Backup Tester, Station Arena Test Desk
Spec deltas
Gunnerβs take
Whole-Home Backup Tester
BLUETTI named the FridgePower after its job, and it does that job.
It holds 2,016 Wh behind an 1,800 W inverter, and a 3,600 W surge covers a compressor's kick at startup. The DELTA 4 (3000) holds 3,072 Wh behind a 3,600 W inverter. That's half again the battery and twice the inverter, for $800 more.
The step up buys everything that isn't the fridge.
A fridge plus one kitchen appliance is where an 1,800 W inverter starts running out of room, and the DELTA 4 (3000) has twice that headroom. It also has five AC outlets to the FridgePower's two, one of them a 30 A twist-lock, plus USB-C at 140 W and two more at 65 W. Our record lists no USB ports on the FridgePower at all.
It's also the box with battery left when the lights come back.
In our eight-hour blackout, the FridgePower finishes with 69 Wh and the DELTA 4 (3000) with 966 Wh, more than half of a second night. The honest catch: the DELTA 4 (3000) is sealed at 3,072 Wh, and the FridgePower takes BLUETTI's expansion batteries.
What the Numbers Reveal
Each conclusion stated first β the numbers behind it on one line, the full analysis below.
continuous output
A fridge cycles on and off all day. Add a kettle or a microwave to an 1,800 W inverter and you're doing sums before you press the button. At 3,600 W those sums mostly go away. Phones and laptops charge straight off the EcoFlow's USB-C, while on the FridgePower they need a wall adapter in one of its two outlets.
FridgePower: 1,800 W continuous, 3,600 W surge, two AC outletsDELTA 4 (3000): 3,600 W continuous, 7,200 W surge, five AC outlets including a 30 A twist-lockOur record lists no USB ports on the FridgePower; the DELTA 4 (3000) has USB-C at 140 W and two at 65 W
Why it mattersIf the fridge shares the box with anything bigger than a lamp, the DELTA 4 (3000) is the one that doesn't make you choose.
Outages don't end on schedule. A box that's empty at dawn means unplugging the fridge and hoping. The extra 1,056 Wh is the difference between that and keeping the fridge on until the grid or the sun comes back.
8-Hour Blackout: the FridgePower ends at 96% used with 69 Wh left8-Hour Blackout: the DELTA 4 (3000) ends at 63% used with 966 Wh leftWeekend Camping: the FridgePower is 386 Wh short of 2,100 Wh; the DELTA 4 (3000) has 511 Wh to spare
Why it mattersIf your outages tend to outlast one night, that margin is what the $800 buys.
If you know 3,072 Wh is enough, the sealed box is the simpler buy, with nothing extra to cable up. If you think you'll want more later, the FridgePower's expansion port is a path the DELTA 4 (3000) doesn't have, and its own next step is a second unit. Solar doesn't split them, since both stop at 1,000 W.
DELTA 4 (3000): sealed at 3,072 Wh, no extra-battery portFridgePower: takes BLUETTI expansion batteriesBoth take up to 1,000 W of solar
Why it mattersBuy the DELTA 4 (3000) for a ceiling you're sure of, and the FridgePower if you'd rather grow in steps.
The specific dimensions that decide these two units β everything else is a tie.
Runtime: Will It Power Your Gear?
Selected because: The FridgePower finishes an eight-hour blackout with 69 Wh left. The DELTA 4 (3000) finishes with 966 Wh.
continuous output
One night is what the FridgePower is built for, and not much more. It ends the eight-hour blackout at 96% used. That's a pass, but one where the fridge and the battery quit together if the grid is late. The DELTA 4 (3000) ends the same night at 63% used, with enough left for more than half of another.
A weekend away splits them for good. The FridgePower comes up 386 Wh short of the weekend, where the DELTA 4 (3000) finishes with 511 Wh to spare. EcoFlow also claims up to 58 hours on a refrigerator for it. That's EcoFlow's figure, not ours, and our record holds no matching claim for the FridgePower.
Growth Path
Selected because: Sealed at 3,072 Wh against a FridgePower that takes expansion batteries: the one real case for the smaller box.
Here's where the FridgePower wins, and I'd rather you heard it from me. The DELTA 4 (3000) has no extra-battery port. What you buy is the ceiling. Outgrow 3,072 Wh and the next step is a second box.
The FridgePower takes BLUETTI's expansion batteries, though our record doesn't say which ones or how big. Its first battery mostly buys back ground the DELTA 4 (3000) already holds. It only pulls ahead if you'd grow past 3,072 Wh, so plan that far before it counts.
Lifetime Value
Selected because: 6,000 rated cycles against 4,000, on a battery half again as big.
cost / lifetime kWh
Over a full battery life, the bigger box costs less per kWh. EcoFlow rates the DELTA 4 (3000) for 6,000 cycles and BLUETTI rates the FridgePower for 4,000. A cycle is one full drain and refill. Spread each price over the energy those cycles deliver and you get $0.09 a kWh against $0.11.
That only counts if the box works for a living. One that sits at full charge waiting for two storms a year won't get near either rating. Cycle it daily off solar and the FridgePower reaches its rating in 11 years, while the DELTA 4 (3000) gets to 16.4 years.
Portability & Form Factor
Selected because: 57.3 lb against 43.4 lb. The step up adds 13.9 lb.
weight
The step up costs 13.9 lb, and you feel it at the trunk lip. The FridgePower is 43.4 lb. The DELTA 4 (3000) is 57.3 lb with a handle at each end, still a one-person lift, just a slower one. If it lives beside the fridge you'll lift it once. If it goes camping, the FridgePower is the kinder carry.
Every port, labelled
What plugs in where, and how much it takes
EcoFlow DELTA 3000 Gen4
Front panel
- 1USB-C Β· 140 WOutUp to 140 W (USB-PD up to 28 V at 5 A). The port for a laptop.
- 22Γ USB-C Β· 65 WOutUp to 65 W each. EcoFlow says these two and the USB-A share 16 W when two or more are in use at once.
- 3USB-A Β· 36 WOutUp to 36 W (5, 9 or 12 V at 3 A).
- 430 A twist-lockOutA three-slot twist-lock marked 30A MAX, rated 30 A at 120 V on the US unit.
- 54Γ 20 A outletsOutFour T-slot 120 V outlets rated 20 A each, sharing 3,600 W continuous and a 7,200 W surge.
Photo: EcoFlow Β· Product image, EcoFlow Japan store Β· numbers and labels are ours. Ratings from EcoFlowβs US spec table; outlet shapes read by us from EcoFlowβs picture, taken of the Japanese unit, which shares the US panel.
Input side
- 1Solar/DC in Β· 1,000 WIn11 to 60 V, up to 20 A, 1,000 W.
- 2AC in Β· 1,800 WIn100β120 V at 15 A. Charges at up to 1,800 W, which at 120 V is the whole of an ordinary 15 A circuit.
No battery port: the 3000 doesnβt take extra batteries.
Photo: EcoFlow Β· Product image, EcoFlow Japan store Β· numbers and labels are ours. Ratings from EcoFlowβs US spec table and the panelβs own printing.
BLUETTI FridgePower
Port end
- 1Solar/DC in Β· 1,000 WInPrinted 12V~60V/20A 1000W: an XT60 input for up to 1,000 W of solar, by BLUETTIβs manual. It also takes a car socket or a lead-acid battery.
- 22Γ 120 V outletsOutTwo T-slot outlets sharing the 1,800 W printed beneath them, with a 3,600 W surge by BLUETTIβs manual for a fridge compressor starting up.
- 3AC in Β· 1,440 WInThe AC charging inlet: up to 1,440 W at 120 V by BLUETTIβs manual, and up to 1,800 W passed through to the outlets.
Also on this end: a reset button printed Circuit Protector 20A. No USB or 12 V ports.
Photo: BLUETTI Β· Product image, BLUETTI Canada store Β· numbers and labels are ours. Ratings printed on BLUETTIβs panel and listed in BLUETTIβs FridgePower user manual (US figures).
Battery side
- 1Battery port + CANIn Β· OutPrinted 19.2VDC 75A Max: an Anderson port, 1,440 W by BLUETTIβs manual, with a CAN data port under the same cover. Up to three BlueCell 200 batteries make 8,064 Wh.
Photo: BLUETTI Β· Product image, BLUETTI Canada store Β· numbers and labels are ours. Ratings printed on BLUETTIβs panel and listed in BLUETTIβs FridgePower user manual.
Strengths & trade-offs
EcoFlow DELTA 3000 Gen4
Strengths
- +Larger battery capacity
- +Higher AC output
- +Rated for 6,000 charge cycles β much longer battery lifespan
Trade-offs
- βSubstantially more expensive (+$800) than the FridgePower.
- βSignificantly heavier (+13.9 lbs), making it harder to move.
BLUETTI FridgePower
Strengths
- +Costs $800 less
- +Lighter by 13.9 lb
Trade-offs
- βWeaker inverter (-1,800W) limits appliance compatibility.
- βShorter-lived battery β rated for 4,000 charge cycles vs the DELTA 3000 Gen4's 6,000, so it wears out sooner.
Will It Power Your Gear?
Scenario math and per-appliance runtimes, modeled from the spec record.
Scenario verdicts
We ran the math on six real-world scenarios. Here's which unit survives your actual life.
SCN-01 Β· 2 nights Β· needs 2,100Wh
Weekend Camping
Two nights off-grid with essential comfort
DELTA 3000 Gen4
The FridgePower comes up 386 Wh short of the 2,100 Wh weekend. The DELTA 4 (3000) finishes it with 511 Wh to spare.
Battery budget usedlower = more headroom
LOADΒ Β Phone Charger 15WΓ6h Β· LED Lights 40WΓ8h Β· Box Fan 75WΓ14h Β· CPAP Machine 40WΓ16h
SCN-02 Β· 8 hours Β· needs 1,645Wh
8-Hour Blackout
Keep the essentials running through a night without power
DELTA 3000 Gen4
Both finish the night, but the FridgePower does it at 96% used with 69 Wh left. The DELTA 4 (3000) ends with 966 Wh, more than half of a second night.
Battery budget usedlower = more headroom
LOADΒ Β Fridge 150WΓ8h Β· Router + Modem 20WΓ8h Β· LED Lights (4 bulbs) 40WΓ6h Β· Phone Charger 15WΓ3h
SCN-03 Β· 8 hours Β· needs 320Wh
CPAP Overnight
Sleep therapy without interruption β the #1 medical use case
DELTA 3000 Gen4
A CPAP is about 40W for eight hours, so both of these cover the night several times over β capacity isn't the question here. What separates them is the box next to your pillow, and here the two ratings do settle it: the DELTA 3000 Gen4's 40dB is EcoFlow's maximum under heavy charge and discharge, while the FridgePower's 50dB is its maker's best case. A ceiling below the other unit's floor holds whichever way you read the two conventions, so the DELTA 3000 Gen4 is the quieter of the two. Neither figure is a reading at a 40W draw, though, so that tells you which is quieter, not how quiet either is beside a bed β look for hands-on reports before either one goes next to a pillow.
Battery budget usedlower = more headroom
LOADΒ Β CPAP Machine 40WΓ8h
SCN-04 Β· 8 hours Β· needs 910Wh
Remote Workday
Full work day off-grid without power anxiety
DELTA 3000 Gen4
The DELTA 3000 Gen4 clears the workday at 35% used, banking 1,701Wh β late work, extra calls, or a second laptop charge without arithmetic. The FridgePower at 53% also finishes, with 804Wh of slack for the unplanned.
Battery budget usedlower = more headroom
LOADΒ Β Laptop 60WΓ8h Β· External Monitor 30WΓ8h Β· Router + Modem 20WΓ8h Β· Phone Charger 15WΓ2h
SCN-05 Β· 4 hours Β· needs 670Wh
Tailgate Party
Game day power for the crew
DELTA 3000 Gen4
Both handle game day; the DELTA 3000 Gen4 keeps more in reserve (26% used vs 39%). Tailgating is a light load, though, so the number you'll feel is weight: 43.4 lbs for the FridgePower against 57.3 lbs for the DELTA 3000 Gen4, from the trunk to the setup spot.
Battery budget usedlower = more headroom
LOADΒ Β Blender 400WΓ0.5h Β· LED TV (55") 80WΓ4h Β· Bluetooth Speaker 15WΓ4h Β· Phone Charger (Γ3) 45WΓ2h
SCN-06 Β· 24 hours Β· needs 4,685Wh
Van Life Daily
A full day of mobile living β the ultimate endurance test
Neither unit
Neither covers the 4,685 Wh day. The FridgePower can add expansion batteries toward it. The DELTA 4 (3000) is sealed, so its answer is a second unit.
Battery budget usedlower = more headroom
LOADΒ Β Mini-Fridge 150WΓ24h Β· Laptop 60WΓ4h Β· Phone Charger 15WΓ3h Β· LED Lights 40WΓ5h Β· Fan 75WΓ8h
The Load Test
RUNTIME = (Wh Γ 0.85) Γ· LOAD
None of the scenarios above exactly yours? Build it. Toggle what you'd plug in; both units are tested against the combined draw.
Essentials
Comfort & Convenience
High-Draw Appliances
Test duration
8h
Continuous draw
205W
Projected runtime
For this load: DELTA 3000 Gen4 runs 12.7h vs 8.4h.
$1,699 list Β· direct from EcoFlow
Planning for more than this? Describe your whole setup and get it sizedΒ β
Modeled from the spec record β same math as the tables below. Methodology
Runtime by appliance
Real-world runtime estimates for common appliances, modeled at 85% inverter efficiency.ΒΉ
Essentials
The basics you need runningscale 0β174.1hComfort & Convenience
Makes off-grid life actually enjoyablescale 0β34.8hHigh-Draw Appliances
These reveal the real limitsscale 0β2.6hΒΉ Runtime = (capacity Γ 0.85) Γ· appliance watts. Within each group, all bars share one time scale (the group's longest runtime), so lengths are comparable across appliances; identical runtimes collapse into a single blue/orange bar. Actual runtime varies with battery age, temperature, and simultaneous loads β see methodology.
Conclusion
November 4, 2026
Verdict: the DELTA 3000 Gen4, on Power Score margin
I'd step up to the DELTA 4 (3000) if the fridge is only the start of the list. $800 more buys 1,056 Wh more battery, a 3,600 W inverter against 1,800 W, five AC outlets against two, and a 6,000-cycle rating against 4,000, which makes it the cheaper box per lifetime kWh, $0.09 against $0.11. The catch is that 3,072 Wh is its ceiling while the FridgePower takes expansion batteries, and EcoFlow doesn't ship the DELTA 4 (3000) until early December. If a fridge through one evening is the whole job, or you'd rather grow in steps, the FridgePower is the better buy.
Editor-assigned confidence, based on cited owner research and spec analysis.
List prices as of November 4, 2026. The links below open EcoFlow's and BLUETTI's current prices.
$1,699.00 Β· direct from EcoFlow
or check the FridgePower price$1,699.00 list
Written by Gunner Gustafson, Whole-Home Backup Tester Β· Station Arena Test Desk Β· Updated November 4, 2026
Measured Data
Benchmark scores and the full spec record, side by side.
Benchmark scores
Not rated for both units (minimum threshold unmet): RV Living, Solar Generator, Tailgating, Food Truck, Apartment Balcony.
Full specifications
α΅ Derived: price Γ· rated capacity. See the data behind our comparisons β
Comparison ToolAdd more power stations, side by sideOpen Tool βHow these numbers are produced
Numeric verification
Every figure on this page traces to our spec database or arithmetic on it β no estimated numbers.
Owner claims
Statements about owner experience are cited to published reviews.
Runtime model
Runtime = (rated capacity Γ 0.85 inverter efficiency) Γ· device wattage. Solar recharge estimates assume panels deliver 70% of rated output. Cold weather, battery age, and stacked loads reduce real-world results.
Power Score
Computed from 14 published spec dimensions, weighted per use-case bench. Higher is better; a unit must meet a bench's minimum threshold to be rated.
See the full weight table and data sourcing on our methodology page βClass ranking (the star rating)
Each unit's star score is a category ranking, not customer reviews β no buyer opinions feed it. We score every station on size-independent quality (value, output, portability, endurance, ports, warranty, and more), then percentile-rank it against the other units in its capacity class, so a class-leading compact unit and a class-leading whole-home unit can both earn 5β . Here, DELTA 3000 Gen4 rates 4.8/5 (86th percentile of 29 Large-class units), and FridgePower rates 3.5/5 (14th percentile of 29 Large-class units).
How the class ranking is computed βTest Notes & Caveats
Hidden gotchas and advantages we spotted that you won't find on the product page.
Two Makers, Two Yardsticks
BLUETTI rates the FridgePower at 50 dB and EcoFlow rates the DELTA 4 (3000) at 40 dB. EcoFlow gives its figure as a ceiling under moderate load, and our record doesn't say how BLUETTI measured. The gap isn't a measured one, so neither figure tells you which is quieter by a bed.
Sealed at 3,072 Wh
The DELTA 4 (3000) has no extra-battery port, so what you buy is the ceiling. The FridgePower takes BLUETTI expansion batteries and can grow past it, though its first one mostly buys back the difference.
FridgePower: Power Lifting to 3,000W
The FridgePower has BLUETTI's Power Lifting mode, which runs a resistive appliance rated up to 3,000W from its 1,800W inverter. It does that by delivering less power than the appliance asks for, not more than the inverter has: the heater still works, it just heats more slowly. Two things follow. BLUETTI scopes the mode to purely resistive loads β a heater, a kettle, an incandescent lamp β so it does nothing for a fridge compressor, a pump or a power tool; for motor loads the figure to read is the FridgePower's separate 3,600W surge peak, not this one. And it is not a reason to size down, because running a load that big from 2,016Wh is a short session either way. Genuinely useful if a heater or a kettle is why you're buying; beside the point otherwise. EcoFlow's X-Boost works the same way, running a resistive load past the inverter's rating at reduced power, but our record for the DELTA 3000 Gen4 carries no X-Boost figure, so check EcoFlow's spec sheet before comparing the two ceilings.
Warranty: No Difference
Both units carry the same 5-year warranty, so coverage isn't a tiebreaker here. Both figures are maximums rather than guarantees: EcoFlow's depends on registering the unit in the EcoFlow app, which adds two years to a three-year standard term; BLUETTI's on buying direct from BLUETTI or registering the unit, since reseller purchases carry a shorter term. Worth saying because the per-dollar framing can suggest otherwise: the FridgePower works out at 5.6 years of cover per $1,000 spent against the DELTA 3000 Gen4's 2.9, but that spread is the price gap, not the terms.
Battery Lifespan in Real Years
The DELTA 3000 Gen4 is rated for 6,000 cycles vs 4,000. In real life: at daily use, that's 16.4 vs 11 years. At weekend use (twice a week), it's 58 vs 38 years. One caution reading years across different sizes: a cycle is 3,072Wh on the DELTA 3000 Gen4 and 2,016Wh on the FridgePower, so count lifetime energy β roughly 18,432 kWh against 8,064 kWh over the rated life. After hitting the cycle limit, the battery doesn't die β it drops to ~80% of original capacity, which is still very usable.
Full record above β the Test Desk pick is the DELTA 3000 Gen4.
Check DELTA 3000 Gen4 price βor check the FridgePower priceOwnership Analysis
What happens after you buy β true cost of ownership, brand trust, and growth potential.
Lifetime value
Service lifeyears at one full cycle per day
Lifetime energy delivered
Cost per delivered kWh
β warranty ends Β· Reaching the cycle rating means ~80% capacity remains β degraded, not dead.
Analyst note
The FridgePower is cheaper to buy, but the DELTA 3000 Gen4 is cheaper to own. At $0.09/kWh over its lifetime vs $0.11/kWh, the DELTA 3000 Gen4's higher cycle life and capacity make each dollar go further over the years.
Brand trust
EcoFlow
Ecosystem
Largest in portable power β 12-15 models across DELTA Pro, DELTA 3, and RIVER 3 series, plus solar panels and smart home panels
Support
US-based phone/email/chat support (1-800-368-8604). Experiences are polarized β many report hassle-free prepaid-label replacements, but others report long waits and refurbished units sent for new claims. Pro tip: buying from Costco or Amazon gives you a stronger return safety net.
Community
Largest community in the space β Reddit r/Ecoflow_community (~31K members), multiple Facebook groups, and an official community forum
App experience
Rated 4.6/5 iOS (~8,400 ratings) Β· 4.2/5 Android (~17,000 ratings)
Unique strength
Fastest-charging technology (X-Stream), deepest product ecosystem, and most active innovation cadence. At the top of the range sit two whole-home paths: the TITAN line, one 5 kWh unit that grows to 30 kWh, and the DELTA Pro Ultra platform, which stacks batteries and inverters further β flagship paths, not line-wide features.
Worth knowing
Tested subscription paywalls for advanced app features in early 2025 before community backlash paused the plan. No parts or service offered out of warranty.
BLUETTI
Ecosystem
One of the broadest lineups β 15-20+ models from budget (AC2A) to flagship portable (Apex 300, 2764.8Wh). Includes specialized products: vehicle solar hubs, sodium-ion cold-weather units, and balcony storage systems.
Support
The most inconsistent support in the space. Heavily email-based with China timezone delays. Some users get smooth, efficient service; others report weeks of troubleshooting runarounds, being offered discounts on new units instead of repairs, and confusing third-party purchase claim processes. Buying direct from Bluetti's website tends to produce better support outcomes.
Community
Active and growing β Reddit r/bluetti has a dedicated community. Second-largest after EcoFlow in engagement.
App experience
Rated 4.5/5 iOS and Android β tied for best app experience in the category. V3.0 UI redesign was well-received.
Unique strength
Among the best capacity-to-price ratios available β several Elite and Apex units are the lowest $/Wh in the catalog. Widest product diversity including industry-firsts like sodium-ion cold-weather units and dual solar+alternator vehicle hubs. LFP across the rest of the range, though rated cycle life spans 2,500 (EB3A) to 6,000, and it varies WITHIN the Elite range rather than tracking it β the Elite 300 and Elite 200 V2 are rated 6,000 while the Elite 30 V2, Elite 10 Mini, Elite 320 and Elite 400 are rated 3,000+ and the Elite 100 V2 4,000+, so check the specific model. Dual-voltage (120V/240V) in flagships.
Worth knowing
Customer support inconsistency is the #1 risk factor. Older/discontinued units may become unrepairable β no spare parts policy for some models. Some reports of erratic communication from support agents.
Analyst note
EcoFlow positions itself as a mid-to-premium brand with stronger support infrastructure, while BLUETTI competes on value. The question is whether the EcoFlow ecosystem and support premium is worth it for your use case.
Growth path
DELTA 3000 Gen4
FIXED CAPACITYFixed at 3,072Wh β a sealed, complete system rather than a starting point. There's no expansion port, so that figure is the ceiling: check it against your longest unplugged stretch before you buy.
Accepts up to 1,000W of solar. Enough for a serious multi-panel array.
Adequate ports for most setups, but heavy users may want a power strip.
FridgePower
EXPANDABLESupports BLUETTI expansion batteries, so you can add capacity later without replacing the base unit β useful if your needs may climb past 2,016Wh.
Accepts up to 1,000W of solar. Enough for a serious multi-panel array.
Limited ports. You'll likely need a power strip or splitter.
Expansion batteries are BLUETTI-specific. You're investing in the BLUETTI ecosystem.
Realistic full solar rechargeat 70% of rated panel output β see methodology
Analyst note
Don't read the FridgePower's expandability as a straight win here: it starts at 2,016Wh, below the DELTA 3000 Gen4's 3,072Wh, so a first expansion battery largely buys back capacity the DELTA 3000 Gen4 already includes. It only pulls ahead if you'd grow past 3,072Wh β short of that, the DELTA 3000 Gen4's larger fixed capacity is the simpler value.
What Owners Report
Patterns from published owner reports and long-term reviews β every claim cited to its source below.
EcoFlow DELTA 3000 Gen4
Nobody in the US owns a DELTA 4 (3000) yet. EcoFlow put it on sale on November 4 and ships it in early December, so its side of this page is EcoFlow's US spec table and our arithmetic.
I'd want to test the fridge claim first. Hypothetically, I'd plug the same kitchen fridge into each box on a full charge, leave the door shut, and see whether the DELTA 4 (3000) gets anywhere near the 58 hours EcoFlow claims. Against a box called FridgePower, that's the test that matters.
βCapacity 3,072 Wh, LFP (LiFePO4) cells. EcoFlow sells it as the DELTA 3000 Gen4; buyers and the press call the pair the DELTA 4.β
Sources
us.ecoflow.co Β· jp.ecoflow.co
BLUETTI FridgePower
I have no field evidence for the FridgePower at all. Our record holds no owner or reviewer reports on it, and the DELTA 4 (3000) is too new to have any either, so every FridgePower figure here is BLUETTI's catalogue, not anyone's experience.
Who Should Buy Which
Buy the DELTA 3000 Gen4 if youβ¦
- βThe fridge is only the start. 3,600 W of inverter against 1,800 W, and five outlets against two.
- βYour outages run into the morning. It ends an eight-hour blackout with 966 Wh left against 69 Wh.
- βYou charge laptops and phones off it. USB-C at 140 W and two at 65 W; our record lists none on the FridgePower.
- βIt will cycle often, on solar or every day. It's rated for 6,000 cycles against 4,000.
Buy the FridgePower if youβ¦
- βA fridge through one evening is the whole job. It does that on 2,016 Wh and leaves $800 in your pocket.
- βYou want to grow in steps. It takes BLUETTI expansion batteries; the DELTA 4 (3000) is sealed.
- βYou can't wait for December. EcoFlow doesn't ship the DELTA 4 (3000) until early December.
- βYou'll carry it often. 43.4 lb against 57.3 lb.
If neither fits
You need 240 V for a well pump or an electric dryer. Neither box has a 240 V outlet, so look at a home-backup station with split-phase output, the 240 V a house panel runs on.
The Bottom Line
If the fridge shares the outage with anything else, I'd buy the DELTA 4 (3000). It brings twice the inverter and half again the battery, and it ends the night with more than half of another still in hand.
If a fridge for one night is the job, or you want to grow in steps, buy the FridgePower. It's lighter, it's $800 cheaper, and it can take more batteries, which the DELTA 4 (3000) never will.
Frequently Asked Questions
Answers drawn from the spec record and cited owner research.
Is the DELTA 4 (3000) worth the extra money over the BLUETTI FridgePower?
If you're backing up more than a fridge, yes. It costs $800 more and brings 1,056 Wh more battery, a 3,600 W inverter against 1,800 W, and five AC outlets against two. If a fridge through one night is the whole job, the FridgePower does it for less.
How much is the DELTA 4 (3000) in the US, and when does it ship?
EcoFlow lists it at $1,699 on its US store. It went on sale on November 4, 2026, and EcoFlow says it ships in early December. The FridgePower sells for $899.
Can I add batteries to the DELTA 4 (3000)?
No. It has no extra-battery port and stays at 3,072 Wh. The FridgePower takes BLUETTI expansion batteries, so it can grow past that.
How long will each one run a refrigerator?
EcoFlow claims up to 58 hours for the DELTA 4 (3000), which is its own figure, not our measurement. Our record holds no matching claim for the FridgePower. In our eight-hour blackout scenario, the FridgePower ends with 69 Wh left and the DELTA 4 (3000) with 966 Wh.
Does the BLUETTI FridgePower have USB ports?
Our record lists none: two AC outlets and no USB-A or USB-C. The DELTA 4 (3000) has one USB-C port at 140 W, two at 65 W and one USB-A.
Where to buy
EcoFlow DELTA 3000 Gen4Pick
$1,699.00
$1,699.00 Β· direct from EcoFlow
BLUETTI FridgePower
$1,699.00
$1,699.00 Β· direct from BLUETTI
Last checked 31 days ago. Prices move β check before you buy.
Prices may vary by retailer and are subject to change.