Head-to-head test
EcoFlow DELTA 3800 Gen4 vs BLUETTI FridgePowerIt Carries You Into a Second Night. Worth the Extra 24 Pounds?
The FridgePower gets a fridge through one night, and the DELTA 4 (3800) wakes up with almost a whole second one. I'd step up if your outages outlast the evening, and keep the money if they don't.
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 3800 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
One of these gets a fridge through the night. The other gets it through nearly two.
In our eight-hour blackout, the FridgePower finishes at 96% used. The DELTA 4 (3800) finishes at 51% with 1,554 Wh left, 94% of a second night.
The sun refills it as fast as the smaller box.
The DELTA 4 (3800) has two solar inputs at 1,000 W each, 2,000 W in all, against the FridgePower's 1,000 W. With panels on both, nearly twice the battery fills in no more time. In an outage that runs for days, that decides whether tomorrow starts full.
It costs $1,300 more and weighs 24.1 lb more.
At 67.5 lb it's a deliberate lift, and EcoFlow ships it in late November. Both boxes take extra batteries, so growth doesn't decide this one. How long your outages last does.
What the Numbers Reveal
Each conclusion stated first β the numbers behind it on one line, the full analysis below.
Capacity
Storm outages rarely end when the forecast said. A box that's empty at dawn means the fridge goes dark while you wait. A box with most of a night left buys you the next day and most of the next evening without a second thought.
8-Hour Blackout: the FridgePower ends at 96% used with 69 Wh left8-Hour Blackout: the DELTA 4 (3800) ends at 51% used with 1,554 Wh left, 94% of a second night3,763 Wh against 2,016 Wh
Why it mattersIf your outages tend to outlast one evening, the DELTA 4 (3800) is the one sized for them.
With panels on both inputs, the bigger battery fills in no more time than the smaller one. In a long outage the daylight hours are for refilling, and one good day puts close to two nights back into the DELTA 4 (3800). The FridgePower fills quickly too. There's just less of it to fill.
DELTA 4 (3800): two solar inputs, 1,000 W each, 11 to 60 VFridgePower: 1,000 W solar input3,763 Wh against 2,016 Wh
Why it mattersIf you'll lean on solar through a long outage, put panels on both inputs and the DELTA 4 (3800) keeps pace with its own size.
Where they start does. The FridgePower's first expansion battery buys back ground the DELTA 4 (3800) already stands on. EcoFlow publishes a ceiling of 12 kWh; for the FridgePower, our record doesn't give one.
DELTA 4 (3800): up to two extra batteries, the DELTA Pro 3 or DELTA 3 Max Plus batteryEcoFlow quotes 4 to 12 kWh in allFridgePower: takes BLUETTI expansion batteries; our record lists no sizes
Why it mattersPlan the whole system first. If it ends up past 3,763 Wh, start with the box that's already most of the way there.
The specific dimensions that decide these two units β everything else is a tie.
Your Life, Your Pick
Selected because: The FridgePower ends an eight-hour blackout at 96% used. The DELTA 4 (3800) ends it at 51%.
Both finish the eight-hour night, but only one finishes it comfortably. The FridgePower ends at 96% used, with 69 Wh between you and a dark fridge. The DELTA 4 (3800) ends at 51%, with most of a second night still in it.
A weekend away splits them harder. The FridgePower comes up 386 Wh short of the 2,100 Wh weekend, and the DELTA 4 (3800) clears it with 1,099 Wh to spare. For a CPAP the scenarios call it a tie, since both cover the night several times over.
Growth Path
Selected because: Both take extra batteries, and the DELTA 4 (3800) takes 2,000 W of solar against 1,000 W.
solar input
Two solar inputs are the quiet reason to step up. The DELTA 4 (3800) takes up to 1,000 W on each of two inputs at 11 to 60 V, so two separate sets of panels feed it at once. That voltage range is what a panel pushes with nothing connected, printed on its back, and any brand's panels that stay inside it will work. The FridgePower takes 1,000 W in all.
Both grow, but only EcoFlow tells you where the ceiling is. The DELTA 4 (3800) takes up to two extra batteries, the DELTA Pro 3 battery or the DELTA 3 Max Plus battery, and EcoFlow quotes 4 to 12 kWh in all. The FridgePower takes BLUETTI's expansion batteries too, but our record doesn't list which or how big, so I can't tell you where it stops.
Portability & Form Factor
Selected because: 67.5 lb against 43.4 lb. The step up adds 24.1 lb.
weight
The step up weighs 24.1 lb, and that's the honest catch. The FridgePower is 43.4 lb, a carry most adults manage without planning. The DELTA 4 (3800) is 67.5 lb with a handle at each end, and EcoFlow sells a folding cart for it separately. I'd carry it up a short flight once and not make a habit of it.
In the makersβ pictures
What youβd actually be living with
Every port, labelled
What plugs in where, and how much it takes
EcoFlow DELTA 3800 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
- 12Γ Solar/DC in Β· 1,000 WInTwo inputs, each 11 to 60 V, up to 20 A, 1,000 W: 2,000 W of panels in all.
- 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.
- 3Battery portIn Β· OutTakes up to two of EcoFlowβs DELTA 3 Max Plus or DELTA Pro 3 extra batteries; EcoFlow quotes 4β12 kWh.
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 3800 Gen4
Strengths
- +Larger battery capacity
- +Higher AC output
- +Faster solar charging
- +Rated for 6,000 charge cycles β much longer battery lifespan
Trade-offs
- βSubstantially more expensive (+$1,300) than the FridgePower.
- βSignificantly heavier (+24.1 lbs), making it harder to move.
BLUETTI FridgePower
Strengths
- +Costs $1,300 less
- +Lighter by 24.1 lb
Trade-offs
- βWeaker inverter (-1,800W) limits appliance compatibility.
- βShorter-lived battery β rated for 4,000 charge cycles vs the DELTA 3800 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 3800 Gen4
The FridgePower doesn't finish β 1,714Wh usable against the 2,100Wh this needs leaves it 386Wh short, about 81% of the scenario covered. The DELTA 3800 Gen4 covers it with 1,099Wh 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 3800 Gen4
Both finish the night. The FridgePower ends at 96% used with 69 Wh left. The DELTA 4 (3800) ends at 51% with 1,554 Wh, most 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 3800 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 3800 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 3800 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 3800 Gen4
The DELTA 3800 Gen4 clears the workday at 28% used, banking 2,289Wh 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 3800 Gen4
The DELTA 4 (3800) keeps more in reserve, 21% used against 39%. On a light load like this, though, the FridgePower is the easier carry from the trunk at 43.4 lb against 67.5 lb.
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 on its own battery. The DELTA 4 (3800) gets closer, 1,486 Wh short against 2,971 Wh, and both take extra batteries to close the rest.
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 3800 Gen4 runs 15.6h vs 8.4h.
$2,199 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 0β213.2hComfort & Convenience
Makes off-grid life actually enjoyablescale 0β42.6hHigh-Draw Appliances
These reveal the real limitsscale 0β3.2hΒΉ 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 3800 Gen4, on Power Score margin
I'd buy the DELTA 4 (3800) if your outages outlast one night. It holds 3,763 Wh against 2,016 Wh, ends the eight-hour blackout with 94% of a second night left against 4%, and takes 2,000 W of solar against 1,000 W, so it refills nearly twice the battery in no more time. That costs $1,300 more and 24.1 lb more, and EcoFlow ships it in late November. If a fridge through one evening is the whole job, the FridgePower does it, and the extra battery would mostly sit at full charge.
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.
$2,199.00 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 3800 Gen4 rates 4.1/5 (48th percentile of 22 Home Backup-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.
The Extra Pounds Are the Extra Battery
The DELTA 4 (3800) is 67.5 lb and the FridgePower 43.4 lb, for 3,763 Wh against 2,016 Wh. If the box lives beside the fridge, you lift it once. If it travels, the FridgePower is the kinder carry.
Not the Same Kind of Number
EcoFlow publishes 40 dB for the DELTA 4 (3800) as a ceiling at moderate load. Our record carries BLUETTI's 50 dB for the FridgePower without the load it was measured at. Two makers measuring two ways, so the gap isn't a measured one.
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 3800 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 3800 Gen4's 2.3, but that spread is the price gap, not the terms.
Battery Lifespan in Real Years
The DELTA 3800 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 3,763Wh on the DELTA 3800 Gen4 and 2,016Wh on the FridgePower, so count lifetime energy β roughly 22,578 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 3800 Gen4.
Check DELTA 3800 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 3800 Gen4 is cheaper to own. At $0.10/kWh over its lifetime vs $0.11/kWh, the DELTA 3800 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 3800 Gen4
EXPANDABLESupports EcoFlow expansion batteries, so you can add capacity later without replacing the base unit β useful if your needs may climb past 3,763Wh.
Accepts up to 2,000W of solar. Enough for a serious multi-panel array.
Adequate ports for most setups, but heavy users may want a power strip.
Expansion batteries are EcoFlow-specific. You're investing in the EcoFlow ecosystem.
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
Both expand, but the DELTA 3800 Gen4's higher solar ceiling (2,000W vs 1,000W) gives it the stronger off-grid growth path β more panels can feed a bigger bank as it grows.
What Owners Report
Patterns from published owner reports and long-term reviews β every claim cited to its source below.
EcoFlow DELTA 3800 Gen4
Nobody owns a DELTA 4 (3800) yet. EcoFlow put it on sale on November 4 and ships it in late November, so its side of this page rests on EcoFlow's US spec table and our arithmetic.
I'd want to watch a long outage, not a short one. Hypothetically, I'd run a fridge and a furnace blower off it for two days with panels on both solar inputs, and see whether each sunny afternoon puts back what the night took. EcoFlow claims up to 70 hours on a fridge alone. Two days with a furnace is the version I'd trust.
βCapacity 3,763 Wh, LFP (LiFePO4) cells. EcoFlow sells it as the DELTA 3800 Gen4; buyers and the press call the pair the DELTA 4.β
Sources
us.ecoflow.co Β· jp.ecoflow.co
BLUETTI FridgePower
There's no field record for the FridgePower on this page. Our record holds no owner or reviewer reports on it, and the DELTA 4 (3800) is too new to have any, so the FridgePower's side is BLUETTI's catalogue and nothing else.
Who Should Buy Which
Buy the DELTA 3800 Gen4 if youβ¦
- βYour outages outlast one night. It ends an eight-hour blackout with 94% of a second night left against 4%.
- βYou'll refill from solar. Two inputs, 2,000 W in all, against the FridgePower's 1,000 W.
- βYou plan to grow. EcoFlow quotes 4 to 12 kWh with up to two extra batteries.
- βMore than the fridge runs on it. 3,600 W of inverter against 1,800 W, and five outlets against two.
Buy the FridgePower if youβ¦
- βA fridge through one evening is the job. It does that, and the $1,300 stays with you.
- βYou'll carry it. 43.4 lb against 67.5 lb.
- βYou need it before late November. EcoFlow ships the DELTA 4 (3800) then.
If neither fits
You only need phones, a router and a lamp through an outage. Both of these are far more battery than that job asks for, and a small power station a fraction of the size covers it.
The Bottom Line
If your outages outlast the evening, I'd buy the DELTA 4 (3800). It wakes up with most of a second night in hand, and its two solar inputs refill it as fast as the FridgePower refills its smaller battery.
If one evening is the outage you plan for, keep the $1,300 and buy the FridgePower. It's 24.1 lb lighter, and it does the fridge job it's named for.
Frequently Asked Questions
Answers drawn from the spec record and cited owner research.
Is the DELTA 4 (3800) worth it over the BLUETTI FridgePower?
If your outages run past one night, yes. It costs $1,300 more, holds 3,763 Wh against 2,016 Wh and ends an eight-hour blackout with 94% of a second night left. For a fridge through one evening, the FridgePower is enough.
How much is the DELTA 4 (3800) in the US, and when does it ship?
EcoFlow lists it at $2,199 on its US store. It went on sale on November 4, 2026, and EcoFlow says it ships in late November. The FridgePower sells for $899.
Can both of them take extra batteries?
Yes. The DELTA 4 (3800) takes up to two, the DELTA Pro 3 or DELTA 3 Max Plus battery, and EcoFlow quotes 4 to 12 kWh in all. The FridgePower takes BLUETTI expansion batteries, but our record doesn't list their sizes.
Which one charges faster from solar?
The DELTA 4 (3800) takes 2,000 W across two inputs against 1,000 W for the FridgePower. With panels on both inputs, it fills nearly twice the battery in no more time.
How heavy is the DELTA 4 (3800)?
It weighs 67.5 lb, against 43.4 lb for the FridgePower. It has a handle at each end, and EcoFlow sells a folding cart for it separately.
Where to buy
EcoFlow DELTA 3800 Gen4Pick
$2,199.00
$2,199.00 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.