Head-to-head test
EcoFlow DELTA 3800 Gen4 vs DJI Power 2000Nearly Twice the Battery, Cheaper per Watt-Hour. Can You Lift It?
Nearly twice the Power 2000's battery, room for two more, and a lower cost per watt-hour, in a box 19 lb heavier. I'd buy the DELTA 4 (3800) for a house that loses power, unless the box mostly rides in your car.
Black Friday Β· 23 days out
Price to beat:Power 2000 $1,299
We have never seen it discounted, so any real cut would be a first.
Full profiles: EcoFlow DELTA 3800 Gen4 β Β· DJI Power 2000 β
Written by Gunner GustafsonUpdated
Whole-Home Backup Tester, Station Arena Test Desk
Spec deltas
Gunnerβs take
Whole-Home Backup Tester
This is a bigger step than the shelf makes it look.
The DJI Power 2000 holds 2,048 Wh and weighs 48.5 lb. The DELTA 4 (3800) holds 3,763 Wh and weighs 67.5 lbA1A7. That's nearly twice the battery for $900 more, and at $2,199 against $1,299 it still comes out cheaper per watt-hour.
The blackout numbers come out as a mirror image.
After our 8-hour blackout night, the Power 2000 has 6% of a second night left in it. The DELTA 4 (3800) has 94% of one. Same two numbers, swapped, and they are the best argument on this page.
What the Numbers Reveal
Each conclusion stated first β the numbers behind it on one line, the full analysis below.
A two-day outage with a grey day in the middle is the one that tests a backup plan. The Power 2000 needs a full recharge before the second evening. The DELTA 4 (3800) covers nearly two of these nights on one charge, so the cloudy day costs you nothing.
8-Hour Blackout load: 1,645 WhPower 2000: 96 Wh left at the end, 6% of a second nightDELTA 4 (3800): 1,554 Wh left at the end, 94% of a second night
Why it mattersIf your outages are measured in days, this is the box. If they're measured in hours, the DJI covers them.
The batteries it takes are ones other EcoFlow stations already useA6. EcoFlow even sells it in a kit with a DELTA 3 Max Plus battery, 6 kWh in allA10. That makes the DELTA 4 (3800) the start of a house system rather than a bigger portable.
DELTA 4 (3800): up to two extra batteries, 4 to 12 kWh in all by EcoFlow's figureA6It takes the DELTA Pro 3 and DELTA 3 Max Plus extra batteriesA6Power 2000: takes DJI expansion batteries, starting from 2,048 Wh
Why it mattersIf home backup is the long-term plan, start on the EcoFlow. If an EcoFlow extra battery already sits in your garage, it can put that to work.
weight
A tailgate or a workday barely dents either unit. The 19 lb is carried on every trip, and the extra capacity only earns it back when the grid is down. For a box that lives in the car, that's a bad trade.
Weight: 67.5 lb against 48.5 lbTailgate Party: 670 Wh, 21% of the DELTA 4 (3800) against 38% of the Power 2000Remote Workday: 910 Wh, 28% against 52%
Why it mattersIf it's a car box first and a backup second, the Power 2000 is the honest size.
The specific dimensions that decide these two units β everything else is a tie.
Your Life, Your Pick
Selected because: The 8-hour blackout leaves 1,554 Wh in the DELTA 4 (3800) and 96 Wh in the Power 2000.
The light days don't split them. A CPAP night, a workday and a tailgate leave most of either battery untouched. The camping weekend does: the DJI comes up 359 Wh short of our 2,100 Wh weekend, and the DELTA 4 (3800) ends it with 1,099 Wh spare.
The blackout is where the extra money goes. I wire houses, and the calls I get after a storm are about day two. The DELTA 4 (3800) finishes our blackout night with 1,554 Wh, nearly a whole second night. The Power 2000 finishes with 96 Wh.
Growth Path
Selected because: Both take extra batteries. The DELTA 4 (3800) starts the climb at 3,763 Wh against 2,048 Wh.
solar input
Both grow, so the real question is where you start. The DELTA 4 (3800) takes up to two extra batteries through EcoFlow's expansion adapter, and EcoFlow quotes 4 to 12 kWh in allA6. The Power 2000 takes DJI's own expansion batteries.
The EcoFlow's extras aren't single-purpose. It takes the DELTA Pro 3 and DELTA 3 Max Plus extra batteriesA6, the same packs those stations run. A household that grows into an EcoFlow system can move batteries around. The DJI keeps you inside DJI.
What the Specs Don't Tell You
Selected because: At 67.5 lb against 48.5 lb, the bigger battery costs 19 lb.
rated cycles
67.5 lb is a lift you plan. I'd get it into a car alone using the handle at each endA7, and EcoFlow sells a folding cart for it separatelyA7. The DJI at 48.5 lb is the one I'd grab on the way out the door.
On solar, the DJI fills its smaller battery sooner. It puts up to 1,800 W into 2,048 Wh. The DELTA 4 (3800) takes 2,000 W across two inputs into 3,763 WhA5, so it collects more sun but needs more hours of it to fill.
Lifetime Value
Selected because: 6,000 rated cycles on 3,763 Wh against 4,000 on 2,048 Wh.
cost / lifetime kWh
Over a battery's whole life, the bigger box is the cheaper one. Spread each price over the energy its rated cycles deliver and the DELTA 4 (3800) comes to $0.10 a kWh against $0.16 for the DJI. More cycles on nearly twice the battery does that: 6,000 against 4,000.
You only collect it by using it. A unit that sits at full waiting for two storms a year never gets near either rating. If that's your plan, the lifetime math stops mattering and the Power 2000's lower price is the number to weigh.
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.
DJI Power 2000
Front panel
- 1TT-30 RV outletOutA NEMA TT-30 outlet, the plug on a camperβs 30 A shore-power cord. DJI counts it as one of four AC outlets, which share 3,000 W.
- 23Γ 20 A outletsOutThree NEMA 5-20 outlets, by their T-slot shape. All four AC outlets share 3,000 W continuous: 100β120 V at 25 A by DJIβs spec.
- 3AC in Β· 1,800 WInThe AC charging inlet, behind the flap printed CHARGE. 110β120 V at up to 15 A by DJIβs spec; DJI quotes 1,800 W AC charging.
- 42Γ SDC Β· solar/batteryIn Β· OutTwo covered DJI SDC ports. In: 32β58.4 V at up to 60 A; DJI says up to 1,800 W of solar through its 1.8kW Solar/Car Super Fast Charger, sold separately. They also take DJIβs Expansion Battery 2000 (up to ten, 22,528 Wh in all), and give 9β28 V at 12 A out.
- 52Γ USB-C Β· 140 WOutC1 and C2, printed MAX 140W: up to 140 W each for a PD 3.1 device on an EPR cable.
- 62Γ USB-C Β· 65 WOutC3 and C4, up to 65 W each, printed MAX 65W.
- 74Γ USB-A Β· 24 WOutUp to 24 W (QC 3.0) with one port in use; with two or more in use, each drops to 10 W, by DJIβs spec.
No 12 V car socket: DJI sells an SDC-to-car-socket cable for that.
Photo: DJI Β· Product image, DJI Store Β· numbers and labels are ours. Port counts, ratings and SDC uses from DJIβs Power 2000 spec page and store FAQ (dji.com/power-2000/specs, store.dji.com/product/dji-power-2000); USB brackets printed on DJIβs panel; outlet types read by us from DJIβs picture.
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 (+$900) than the Power 2000.
- βSignificantly heavier (+19 lbs), making it harder to move.
DJI Power 2000
Strengths
- +Costs $900 less
- +Lighter by 19 lb
Trade-offs
- βWeaker inverter (-600W) 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 Power 2000 comes up 359 Wh short of the 2,100 Wh weekend. The DELTA 4 (3800) finishes with 1,099 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 3800 Gen4
Both finish the night. The DJI has 96 Wh left. The DELTA 4 (3800) has 1,554 Wh, nearly a whole 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
Either unit
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. The only published difference is fan noise, and it can't settle this: the Power 2000 is rated 30dB and the DELTA 3800 Gen4 40dB, but the Power 2000's is its maker's best case and the DELTA 3800 Gen4's is EcoFlow's maximum under heavy charge and discharge, so at a 40W draw the real gap can only be narrower than it looks, and may even run the other way. Neither settles which box is quieter at a bedside. Buy whichever is cheaper or easier to carry.
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 Power 2000 at 52% also finishes, with 831Wh 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
Both handle game day; the DELTA 3800 Gen4 keeps more in reserve (21% used vs 38%). Tailgating is a light load, though, so the number you'll feel is weight: 48.5 lbs for the Power 2000 against 67.5 lbs for the DELTA 3800 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 4,685 Wh on its own battery. The DELTA 4 (3800) gets closer, 1,486 Wh short against 2,944 Wh, and both take extra batteries, so this one is fixed by adding one.
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 8.5h.
$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
For a house, I'd buy the DELTA 4 (3800). It holds 3,763 Wh against 2,048 Wh, costs less per watt-hour, has the bigger inverter at 3,600 W, and ends our 8-hour blackout with 1,554 Wh left where the Power 2000 has 96 Wh. It also takes up to two extra batteries, 4 to 12 kWh in all by EcoFlow's figureA6. The cost is real: $900 more, 19 lb heavier, and EcoFlow ships it in late NovemberA10 while the DJI is on sale now. If the box travels more than it waits for outages, or one night is all you ever need, the Power 2000 does that job for a lot less.
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 DJI's current prices.
$2,199.00 Β· direct from EcoFlow
or check the Power 2000 price$1,299.00 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): CPAP, Camping.
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 β see Sources & Research Notes below.
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 Power 2000 rates 4.3/5 (57th 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.
19 lb More to Carry
The DELTA 4 (3800) weighs 67.5 lb against the Power 2000's 48.5 lb. It has a handle at each end, so one person can get it into a car, but you'll choose which trips it makes.
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; DJI's on buying from DJI's own store, which is where the full five years is advertised. Worth saying because the per-dollar framing can suggest otherwise: the Power 2000 works out at 3.8 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 2,048Wh on the Power 2000, so count lifetime energy β roughly 22,578 kWh against 8,192 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 Power 2000 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 Power 2000 is cheaper to buy, but the DELTA 3800 Gen4 is cheaper to own. At $0.10/kWh over its lifetime vs $0.16/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.
DJI
Ecosystem
New entrant (2024) β five power station models to date: Power 500, Power 1000 (since superseded by the V2 but still sold), Power 1000 V2, Power 1000 Mini, Power 2000. Buying a "Power 1000" listing? Check which revision it actually ships.
Support
Leveraging DJI's established global support and repair center network from the drone business. Generally positive reputation inherited from drone operations, but limited power-station-specific track record.
Community
No dedicated power station community yet. Discussions happen within r/dji (~250K members, mostly drone users). Very small power-specific presence on Facebook and forums.
App experience
Rated 3.5/5 iOS and Android (DJI Home app ratings reflect entire DJI ecosystem including drones/cameras, not power-station-specific). Users report the on-device screen is more reliable than the app.
Unique strength
Runs quiet β 23-30dB published on most of the range (manufacturer best-case figures), at the quiet end of the category; our record carries no figure for the Power 1000 V2. Fast wall charging, quickest on the Power 1000 V2 at ~56 min β that figure is the V2's, not the whole line's. 700+ battery patents from drone R&D. SDC ports for ultra-fast DJI drone charging. Premium industrial design and build quality. LFP batteries rated for 4,000+ cycles.
Worth knowing
A recent entrant to power stations, arriving long after the established players, so there is less long-term field data than for EcoFlow, Jackery or BLUETTI β though DJI brings a deep hardware track record from drones. No built-in solar charge controller (requires a separate proprietary adapter). SDC ports are proprietary to the DJI ecosystem, so their fast-charging advantage mostly benefits people who already own DJI gear. Battery expansion is available on the newer Power 2000 and Power 1000 V2, but not on the earlier Power 1000 or Power 500 β check the specific model.
Analyst note
EcoFlow and DJI are close competitors. Both have established support channels and growing ecosystems. Compare their specific warranty terms and community size for your peace of mind.
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.
Power 2000
EXPANDABLESupports DJI expansion batteries, so you can add capacity later without replacing the base unit β useful if your needs may climb past 2,048Wh.
Accepts up to 1,800W of solar. Enough for a serious multi-panel array.
Generous port selection supports complex multi-device setups.
Expansion batteries are DJI-specific. You're investing in the DJI ecosystem.
Realistic full solar rechargeat 70% of rated panel output β see methodology
Analyst note
Both expand, so neither locks you out of growth β decide on capacity, price, and the rest, not the expansion checkbox.
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 NovemberA10, so this page runs on EcoFlow's US store page and our own arithmeticA1A6A9.
I'd want to watch it run an extra battery before I trusted the 12 kWh figureA6. Hypothetically, I'd connect a DELTA 3 Max Plus battery through the adapter, run a house's 120 V essentials overnight, and check that the app drains both packs as one batteryA6. That's the test that tells you whether the growth path is as tidy as the spec sheet.
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
DJI Power 2000
Reviewers talk most about how fast it refills. They report a full wall charge in about 90 minutes, closer to an hour in some measurements, and a full solar charge in about 75 minutes at up to 1,800 WB1. They also call it one of the quietest units tested, about 29 dB at 5 feet with the fan onB2.
It's a young line with a sturdy build. Coverage so far is reviews, not years of ownershipB0. Reviewers describe an eightfold protection system with 26 temperature sensors and 21 fusesB3, and say it ran everything they threw at itB4.
βAmong the fastest-charging tested β a full wall charge in about 90 minutes (reviewers measured even faster, roughly an hour), and up to 1,800W of solar input for a full solar charge in about 75 minutes.β
Sources
bobvila.com Β· t3.com Β· thesolarlab.com Β· campingsolar.us Β· protoolreviews.com Β· greenerideal.com Β· dronexl.co
Sources & Research Notes
Every owner claim in this report is traceable to a published source. The bracketed references above resolve here.
Recurring owner themes
- Launch-day ledger: every entry is EcoFlow's own US store and documentation, or our labelled arithmetic. No owner or reviewer evidence exists yet. [DELTA 3800 Gen4 Β· 12 entries]
- Standout fast charging (wall and 1800W solar), near-silent operation, and an unusually robust safety-focused build are the consistent praise. [Power 2000 Β· 3 entries]
- A1
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
EcoFlow US store, us.ecoflow.com/products/delta-3800-gen4 (spec table, features and FAQ, read 2026-11-04) Β· 2026-11-04 Β· [mixed]
- A3
βAC outlets: 5 total, four rated 20 A max and one rated 30 A max (on EcoFlow's product images, four T-slot outlets and a three-slot twist-lock). USB-A: one port, 36 W max. USB-C: one at 140 W max and two at 65 W max; the two 65 W ports share circuitry with the USB-A, limited to 16 W total when used together. No 12 V car socket.β
EcoFlow US store, us.ecoflow.com/products/delta-3800-gen4 (spec table, features and FAQ, read 2026-11-04) Β· 2026-11-04 Β· [mixed]
- A5
βSolar: two inputs, 11β60 V DC at up to 20 A and 1,000 W each, 2,000 W total (XT60i; two XT60i-to-LP60 cables are in the box). EcoFlow lists six charging methods; its 800 W Alternator Charger is limited to 500 W through the Solar/DC port.β
EcoFlow US store, us.ecoflow.com/products/delta-3800-gen4 (spec table, features and FAQ, read 2026-11-04) Β· 2026-11-04 Β· [mixed]
- A6
βExtra Battery Port: up to two extra batteries through EcoFlow's Smart Extra Battery Expansion Adapter. Compatible: the DELTA Pro 3 Smart Extra Battery and the DELTA 3 Max Plus (2,048 Wh) Smart Extra Battery. EcoFlow quotes 4β12 kWh of expandable capacity.β
EcoFlow US store, us.ecoflow.com/products/delta-3800-gen4 (spec table, features and FAQ, read 2026-11-04) Β· 2026-11-04 Β· [mixed]
- A7
βWeight 67.5 lb (30.6 kg); 16.77 Γ 11.36 Γ 12.09 in without handles, 18.76 in long with them. A handle at each end; EcoFlow sells a folding transport cart separately ($109 at launch, listed at $199). EcoFlow calls it the smallest and lightest portable power station in its class (3β4 kWh and 3,600 W).β
EcoFlow US store, us.ecoflow.com/products/delta-3800-gen4 (spec table, features and FAQ, read 2026-11-04) Β· 2026-11-04 Β· [mixed]
- A9
βRated for 6,000 cycles (EcoFlow: "15+ years"). Charges at 32β113Β°F (0β45Β°C), runs at 14β113Β°F (β10β45Β°C). Wi-Fi and Bluetooth with the EcoFlow app. Warranty: 3 years plus a 2-year extension when registered in the EcoFlow app.β
EcoFlow US store, us.ecoflow.com/products/delta-3800-gen4 (spec table, features and FAQ, read 2026-11-04) Β· 2026-11-04 Β· [mixed]
- A10
βOn sale at us.ecoflow.com from November 4, 2026 at $2,199; EcoFlow says it ships in late November. Kits: with two 160 W solar panels $2,899; with a DELTA 3 Max Plus extra battery (6 kWh in all) $2,999. EcoFlow also sells it in Japan, where it went on sale October 30 at Β₯240,900.β
EcoFlow US store, us.ecoflow.com/products/delta-3800-gen4 (spec table, features and FAQ, read 2026-11-04) Β· 2026-11-04 Β· [mixed]
- B1
βAmong the fastest-charging tested β a full wall charge in about 90 minutes (reviewers measured even faster, roughly an hour), and up to 1,800W of solar input for a full solar charge in about 75 minutes.β
bobvila.com / t3.com β DJI Power 2000 review Β· 2025-2026 Β· [positive]
- B2
βOne of the quietest power stations tested β only about 29 dB at 5 feet when the fan kicked in, virtually silent, and it stayed among the quietest units even under the heaviest loads.β
bobvila.com / thesolarlab.com β DJI Power 2000 review Β· 2025-2026 Β· [positive]
- B3
βBuilt with an eightfold protection system β flame-retardant materials, a nano-coated BMS, 26 temperature sensors, 21 fuses, and structural reinforcement rated to support a one-ton static load β positioning it as one of the safest, most robust units on the market.β
campingsolar.us / protoolreviews.com β DJI Power 2000 review Β· 2025-2026 Β· [positive]
- B4
βRan everything reviewers threw at it, handled surges consistently, and recharged incredibly fast, especially from solar; deep integration for DJI drone users is a unique advantage.β
greenerideal.com / dronexl.co β DJI Power 2000 review Β· 2025-2026 Β· [positive]
Research compiled November 4, 2026.
Who Should Buy Which
Buy the DELTA 3800 Gen4 if youβ¦
- βYour outages last more than a night. It ends our blackout night with 1,554 Wh left. The DJI ends it with 96 Wh.
- βYou're building toward home backup. Up to two extra batteries, 4 to 12 kWh in all by EcoFlow's figureA6.
- βYou already own an EcoFlow extra battery. It takes the DELTA Pro 3 and DELTA 3 Max Plus onesA6.
- βIt will cycle every day on solar. 6,000 rated cycles against 4,000, and two solar inputsA5.
Buy the Power 2000 if youβ¦
- βIt lives in the car. 48.5 lb against 67.5 lb.
- βOne night is the job. It runs a CPAP night or a workday with plenty left, for $900 less.
- βYou need it before late November. EcoFlow ships the DELTA 4 (3800) thenA10, and the Power 2000 is on sale now.
- βYour RV has a 30 A inlet. The Power 2000 has an RV-style 30 A outlet. The EcoFlow's 30 A outlet is a twist-lockA3.
If neither fits
If you want a step rather than a leap, look at the smaller DELTA 4. It sits between these two on battery, weight and price, and it suits a buyer who wants more than one night without the full jump. If the whole house has to run, skip portables and look at a whole-home battery wired into the panel.
The Bottom Line
For a house that loses power, I'd buy the DELTA 4 (3800). It wakes up after a blackout night with nearly a whole second night left, costs less per watt-hour, and grows from there.
For the car, a day trip or one night at a time, buy the Power 2000. It's 19 lb lighter, $900 cheaper, and it's on sale now.
Frequently Asked Questions
Answers drawn from the spec record and cited owner research.
Is the DELTA 4 (3800) worth the extra money over the DJI Power 2000?
For home outages, yes. It holds 3,763 Wh against 2,048 Wh for $900 more, costs less per watt-hour, and takes extra batteries up to 4 to 12 kWh in all by EcoFlow's figure. For a car or a single night, the Power 2000 does the job for less and weighs 19 lb less.
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 DJI Power 2000 sells for $1,299.
Can both take extra batteries?
Yes. The DELTA 4 (3800) takes up to two through EcoFlow's expansion adapter, using the DELTA Pro 3 or DELTA 3 Max Plus extra batteries. The DJI Power 2000 takes DJI's own expansion batteries.
How long does each one last in a blackout?
On our 8-hour blackout load of 1,645 Wh, both finish the night. The Power 2000 has 96 Wh left at the end and the DELTA 4 (3800) has 1,554 Wh, nearly enough for a second night.
Which one charges faster from solar?
The DJI Power 2000 fills its battery sooner. It takes up to 1,800 W into 2,048 Wh, and reviewers report a full solar charge in about 75 minutes. The DELTA 4 (3800) accepts more in total, 2,000 W across two inputs, but has nearly twice the battery to fill.
Brand matchup
EcoFlow vs DJI: measured across every matchup βWhere to buy
EcoFlow DELTA 3800 Gen4Pick
$2,199.00
$2,199.00 Β· direct from EcoFlow
DJI Power 2000
$1,299.00
$1,299.00 Β· direct from DJI
Last checked 31 days ago. Prices move β check before you buy.
Prices may vary by retailer and are subject to change.