Head-to-head test
EcoFlow DELTA 3000 Gen4 vs Anker SOLIX S2000The Smaller Battery Is Rated to Outlast It. So Why Step Up?
The S2000 is rated to deliver more energy over its life than the DELTA 4 (3000), for a fraction of the price. I'd buy the S2000, unless something you run needs more than its 1,500 W.
Black Friday Β· 23 days out
Price to beat:SOLIX S2000 $650
The lowest we have recorded. A Black Friday price above it is a sale this unit has already had.
Full profiles: EcoFlow DELTA 3000 Gen4 β Β· Anker SOLIX S2000 β
Written by Gunner GustafsonUpdated
Whole-Home Backup Tester, Station Arena Test Desk
Spec deltas
Gunnerβs take
Whole-Home Backup Tester
The step from 2 kWh to 3 kWh buys less battery than it looks like.
The DELTA 4 (3000) holds about half again the SOLIX S2000's capacity. But Anker rates the S2000 for 10,000 cycles and EcoFlow rates the DELTA 4 (3000) for 6,000, so over each rated life the smaller box hands over more energy, 20,096 kWh against 18,432 kWh.
What the Numbers Reveal
Each conclusion stated first β the numbers behind it on one line, the full analysis below.
rated cycles
Spread each price over that lifetime energy and the S2000 comes to $0.03 a kWh against $0.09. Cycled once a day, the DELTA 4 (3000) reaches its rating in 16.4 years and the S2000 in 27.4. For a box that works every day on solar, the cheap one is also the longer-lived battery.
SOLIX S2000: 2,009.6 Wh, rated for 10,000 cyclesDELTA 4 (3000): 3,072 Wh, rated for 6,000 cyclesA9$1,699 against $700
Why it mattersIf you'll cycle it daily, stay with the S2000. Stepping up buys fewer lifetime kilowatt-hours, not more.
continuous output
Under 1,500 W, a fridge, a furnace blower, the router and lights all run on the S2000 with room left. Past it, the S2000 can't carry the load at all. A well pump starting while the fridge runs, a big shop tool, or a microwave and a coffee maker going together is where the DELTA 4 (3000) earns its price.
SOLIX S2000: 1,500 W continuous, 3,000 W surgeDELTA 4 (3000): 3,600 W continuous, 7,200 W surge, 120 VA2DELTA 4 (3000): four outlets rated 20 A and one rated 30 AA3
Why it mattersAdd up what runs at the same moment. If it stays under 1,500 W, the S2000's inverter is all you need.
solar input
The DELTA 4 (3000) ends the same night with enough for 59% of a second one, and from 1,000 W of panels it can take back its whole battery in about three hours of strong sun. In an outage that runs into a third day on solar, that's the difference between keeping pace and falling behind. It only counts if you own that much panel or will buy it.
SOLIX S2000: 400 W solar inputDELTA 4 (3000): 1,000 W solar input on one port, 11 to 60 VA58-Hour Blackout: the S2000 ends the night with 63 Wh left, the DELTA 4 (3000) with 966 Wh
Why it mattersIf you're planning for multi-day outages on solar, the DELTA 4 (3000) keeps up. For one-night outages, the S2000 covers it.
The specific dimensions that decide these two units β everything else is a tie.
Your Life, Your Pick
Selected because: The S2000 falls 392 Wh short of the 2,100 Wh weekend and ends the 1,645 Wh blackout with 63 Wh left.
The extra battery shows up on the long days. The S2000 runs out 392 Wh short of the 2,100 Wh camping weekend, and it gets through the blackout night with 63 Wh to spare. The DELTA 4 (3000) finishes both with room left over.
On the short days, the S2000 does the same job. A CPAP night, a remote workday and a tailgate all fit inside it with plenty left. I'd pick the S2000 for any of those and spend the difference on panels.
Lifetime Value
Selected because: 10,000 rated cycles against 6,000, so the smaller battery delivers more energy over its rated life.
cost / lifetime kWh
The cheaper box is also the cheaper battery to own. Spread each price over the energy its rated cycles deliver and the S2000 comes to $0.03 a kWh against $0.09 for the DELTA 4 (3000). The cycle ratings do most of that work: 10,000 against 6,000.
It only counts if you cycle it. A box that sits charged in the hall closet waiting for storm season will never get near either rating. One that runs off solar every day reaches the DELTA 4 (3000)'s rating in 16.4 years, when the S2000 still has more than a decade left.
Portability & Form Factor
Selected because: 35.7 lb against 57.3 lb, for about half again the battery.
weight
The lighter box is the awkward one to carry. The S2000 weighs 35.7 lb, but one reviewer wanted a second handle for stairsB7 and another missed a proper one-hand gripB8. The DELTA 4 (3000) weighs 57.3 lb with a handle at each endA7.
I'd still rather carry the S2000. An awkward grip on a light box beats a good grip on a heavy one, and the DELTA 4 (3000) is a bent-knees lift into the trunk. For camping, I'd take the lighter one.
Growth Path
Selected because: Neither takes an extra battery, so the capacity you buy is the capacity you keep.
solar input
Neither box grows, so the size you pick is final. EcoFlow left the DELTA 4 (3000) without an extra-battery portA6, and the S2000 is sealed too. Whatever you buy is the ceiling you live with.
So size for your worst outage, not your average one. If one night is the worst you expect, the S2000 already covers it. The DELTA 4 (3000) ends that night with enough for 59% of a second, so if two dark nights in a row worry you, you want a box that takes batteries, like the bigger DELTA 4.
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.
Anker SOLIX S2000
Front panel, port row
- 1USB-A Β· 12 WOutUp to 12 W. It shares an 18 W limit with the 15 W USB-C, as printed on the panel and in Ankerβs spec table.
- 2USB-C Β· 15 WOutC1, up to 15 W, inside the 18 W it shares with the USB-A port.
- 3USB-C Β· 100 WOutC2, up to 100 W.
- 4Solar in Β· 400 WInAn orange two-pin input printed SOLAR IN. Ankerβs spec table gives 400 W max of solar.
Left of the USB ports, a button printed AC; right of the solar input, a RESET hole and the power button. The screen sits below this row.
Photo: Anker Β· Product image, Anker SOLIX store Β· numbers and labels are ours. Ratings printed on Ankerβs panel and in Ankerβs US S2000 spec table (ankersolix.com/products/s2000-portable-power-station).
Front outlets
- 13Γ AC outletsOutThree household outlets, NEMA 5-15 by their shape. All five AC outlets share 1,500 W continuous and a 3,000 W peak, by Ankerβs page.
Photo: Anker Β· Product image, Anker SOLIX store Β· numbers and labels are ours. Outlet type read by us from Ankerβs picture; the count and the totals from Ankerβs US S2000 spec table and page (ankersolix.com/products/s2000-portable-power-station).
Rear panel
- 12Γ AC outletsOutTwo more household outlets, NEMA 5-15 by their shape, inside the same 1,500 W.
- 2AC in Β· 1,600 WInThe AC charging inlet: 1,150 W by default, 1,600 W in UltraFast mode, which is switched on in the Anker app.
No battery port: Anker says the S2000 doesnβt take extra batteries, and it has no 12 V car socket.
Photo: Anker Β· Product image, Anker SOLIX store Β· numbers and labels are ours. Outlet type read by us from Ankerβs picture; charging figures from Ankerβs US S2000 spec table (ankersolix.com/products/s2000-portable-power-station).
Strengths & trade-offs
EcoFlow DELTA 3000 Gen4
Strengths
- +Larger battery capacity
- +Higher AC output
- +Faster solar charging
Trade-offs
- βSubstantially more expensive (+$999) than the SOLIX S2000.
- βSignificantly heavier (+21.6 lbs), making it harder to move.
- βShorter-lived battery β rated for 6,000 charge cycles vs the SOLIX S2000's 10,000, so it wears out sooner.
Anker SOLIX S2000
Strengths
- +Costs $999 less
- +Lighter by 21.6 lb
- +Rated for 10,000 charge cycles β much longer battery lifespan
Trade-offs
- βWeaker inverter (-2,100W) limits appliance compatibility.
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 S2000 runs out 392 Wh short of the 2,100 Wh weekend. The DELTA 4 (3000) finishes with 511 Wh left. This is where the extra battery earns its place.
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 get through the night. The S2000 ends it with 63 Wh, the DELTA 4 (3000) with 966 Wh, enough for 59% 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
Either unit
Both run a CPAP through the night several times over, so capacity doesn't split them. Carry the lighter one: the S2000 at 35.7 lb.
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 SOLIX S2000 at 53% also finishes, with 798Wh 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: 35.7 lbs for the SOLIX S2000 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 unit covers this scenario's 4,685Wh: the DELTA 3000 Gen4 comes up 2,074Wh short (about 56% covered), the SOLIX S2000 2,977Wh (36%). Treat this as partial cover β enough for the essentials in it, not the whole list.
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 8.3h.
$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 Anker SOLIX S2000
I'd buy the S2000, unless something you run pulls more than 1,500 W. The DELTA 4 (3000) holds 3,072 Wh against 2,009.6 Wh, but it's sealed like the S2000 and rated for 6,000 cycles against 10,000, so over its rated life it delivers less energy and costs $0.09 a kWh against $0.03. What the step up buys is a 3,600 W inverter against 1,500 W, 1,000 W of solar input against 400 W, and a blackout night that ends with 966 Wh left instead of 63 Wh. If your loads cross 1,500 W or your outages run past one night, the DELTA 4 (3000) earns its price. Otherwise it ships in early DecemberA10 for a job the S2000 already does today.
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 Anker's current prices.
$729.99 Β· direct from Anker
Last checked 31 days ago. Prices move β check before you buy.
or check the DELTA 3000 Gen4 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, CPAP, Food Truck, 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 3000 Gen4 rates 4.8/5 (86th percentile of 29 Large-class units), and SOLIX S2000 rates 4.9/5 (96th 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.
Warranty: No Difference
Both units carry the same 5-year warranty, so coverage isn't a tiebreaker here. The DELTA 3000 Gen4's figure is a maximum rather than a guarantee β it depends on registering the unit in the EcoFlow app, which adds two years to a three-year standard term. Worth saying because the per-dollar framing can suggest otherwise: the SOLIX S2000 works out at 7.1 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.
The Smaller Battery Delivers More
The S2000 is rated for 10,000 cycles and the DELTA 4 (3000) for 6,000. Each S2000 cycle moves less energy, so count kilowatt-hours: 20,096 kWh against 18,432 kWh over each rated life. Cycled daily, that's 27.4 years against 16.4.
Full record above β the Test Desk pick is the SOLIX S2000.
Check SOLIX S2000 price βor check the DELTA 3000 Gen4 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 SOLIX S2000 wins on both sticker price and long-term value. At $0.03/kWh over its lifetime, it's meaningfully cheaper to own. Clear value winner.
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.
Anker
Ecosystem
7-8 SOLIX portable power stations across C-series (compact) and F-series (flagship), plus the X1 home energy system
Support
US-based support. Historically known for incredible no-hassle replacements, but recent reports describe AI-driven support agents giving generic responses and complex return logistics for heavy units (hazmat shipping). The Anker brand reputation is still strong, but SOLIX-specific support quality is trending down.
Community
Moderate β active Reddit (r/Anker, r/AnkerSOLIXCommunity) and growing. Benefits from Anker's massive consumer electronics brand awareness.
App experience
Rated 4.5/5 iOS (~1,100 ratings) Β· 4.3/5 Android
Unique strength
Parent brand trust from Anker's consumer electronics dominance. InfiniPower technology for long cycle life. Strong $/Wh value in the mid-size and larger units β the S2000, F2600 and C1000 are among the better buys per watt-hour in the catalog.
Worth knowing
Support quality appears to be declining from its historically excellent level. Firmware updates have removed features without warning. Expansion ecosystem is smaller than EcoFlow's.
Analyst note
EcoFlow positions itself as a mid-to-premium brand with stronger support infrastructure, while Anker 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.
SOLIX S2000
FIXED CAPACITYFixed at 2,010Wh 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 400W of solar. Suitable for a 1-2 panel setup.
Adequate ports for most setups, but heavy users may want a power strip.
Realistic full solar rechargeat 70% of rated panel output β see methodology
Analyst note
Neither expands, and that's no knock on either β each is a complete unit at a fixed size. Buy the capacity that covers your needs now (the DELTA 3000 Gen4 gives you the larger ceiling); you can't add to either later.
What Owners Report
Patterns from published owner reports and long-term reviews β every claim cited to its source below.
EcoFlow DELTA 3000 Gen4
There's no field record on the DELTA 4 (3000) yet. It went on sale November 4 and EcoFlow ships it in early DecemberA10. Every figure on its side of this page is EcoFlow's own, from its US store listingA1A2A9.
I'd want to see it carry a real kitchen. Hypothetically, I'd run a microwave and a coffee maker off it together, with a fridge cycling on the next outlet, and watch whether the 3,600 W EcoFlow listsA2 holds all three without a trip. That's the job the S2000 can't take, so it's the job the price has to earn.
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
Anker SOLIX S2000
The S2000's two hands-on reviews found a quiet, frugal box. Both say the fans stay off until a heavy load or the fastest charging modeB1B2. Both measured single-digit standby draw, about 2 W with everything off and 6 W with the AC on and idleB3B4.
One reviewer's fridge test is worth a smile. They ran a fridge and kitchen gadgets off the S2000 for over 60 hoursB12, and EcoFlow claims up to 58 hours on a fridge for the much bigger DELTA 4 (3000)A12. Different fridges, so neither figure predicts yours. The S2000 launched in JuneB0, so there's no long-term data yet.
βFans only spin up under real load or fast charging, and at idle the unit is silent.β
Sources
ess-news.com Β· geardiary.com
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 3000 Gen4 Β· 12 entries]
- Two independent hands-on reviews both found near-silent idle operation, with fans spinning up only under heavy load or the fastest charging mode. [SOLIX S2000 Β· 2 entries]
- OptiSave's low-idle-draw claim held up under independent testing, with both reviewers separately measuring single-digit-watt standby draw. [SOLIX S2000 Β· 2 entries]
- Both reviewers praised fast, reliable UPS switchover that connected electronics didn't notice. [SOLIX S2000 Β· 2 entries]
- Despite otherwise solid build quality, reviewers from two different outlets independently flagged the single/absent carry handle as awkward for one-person transport. [SOLIX S2000 Β· 2 entries]
- A1
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
EcoFlow US store, us.ecoflow.com/products/delta-3000-gen4 (spec table, features and FAQ, read 2026-11-04) Β· 2026-11-04 Β· [mixed]
- A2
βUS unit: 120 V AC, 60 Hz; rated 3,600 W continuous with a 7,200 W surge. It supports X-Boost (EcoFlow refers to the manual for the US X-Boost figure); X-Boost is unavailable while the unit charges from the wall or runs in bypass.β
EcoFlow US store, us.ecoflow.com/products/delta-3000-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-3000-gen4 (spec table, features and FAQ, read 2026-11-04) Β· 2026-11-04 Β· [mixed]
- A5
βSolar: one input, 11β60 V DC at up to 20 A, 1,000 W (XT60i; an XT60i-to-LP60 cable is 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-3000-gen4 (spec table, features and FAQ, read 2026-11-04) Β· 2026-11-04 Β· [mixed]
- A6
βNo extra-battery port. EcoFlow lists expansion only for the DELTA 3800 Gen4 (two extra batteries through its expansion adapter); the 3000 is sealed at 3,072 Wh.β
EcoFlow US store, us.ecoflow.com/products/delta-3000-gen4 (spec table, features and FAQ, read 2026-11-04) Β· 2026-11-04 Β· [mixed]
- A7
βWeight 57.3 lb (26 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 (3 kWh and 3,600 W).β
EcoFlow US store, us.ecoflow.com/products/delta-3000-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-3000-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 $1,699; EcoFlow says it ships in early December. Kit with two 160 W solar panels $2,299. EcoFlow also sells it in Japan, where it went on sale October 30 at Β₯179,900.β
EcoFlow US store, us.ecoflow.com/products/delta-3000-gen4 (spec table, features and FAQ, read 2026-11-04) Β· 2026-11-04 Β· [mixed]
- A12
βPowers a refrigerator for up to 58 hours, which EcoFlow says is 17 hours (41.5%) longer than the industry average for 3 kWh portable power stations. Both figures are EcoFlow's own claims, not our measurement.β
EcoFlow US store, us.ecoflow.com/products/delta-3000-gen4 (spec table, features and FAQ, read 2026-11-04) Β· 2026-11-04 Β· [positive]
- B1
βFans only spin up under real load or fast charging, and at idle the unit is silent.β
ess-news.com β Anker Solix S2000 review: 2 kWh power station built for the long haul Β· 2026-05 Β· [positive]
- B2
βThe fans only spin up when pulling a heavy load or using the fastest charging mode β otherwise it stays very quiet.β
geardiary.com β Anker SOLIX S2000 Review Β· 2026-07 Β· [positive]
- B3
βCharged fully, disconnected from wall power with AC output enabled and no loads attached, then monitored for 10 hours: state of charge dropped only to 99%, implying about 2W average draw β matching Anker's spec.β
ess-news.com β Anker Solix S2000 review: 2 kWh power station built for the long haul Β· 2026-05 Β· [positive]
- B4
βWith AC ports on but unused, consumption is about 6W; with everything disabled it drops to just 2W.β
geardiary.com β Anker SOLIX S2000 Review Β· 2026-07 Β· [positive]
- B7
βAt 35.7 lbs the weight is manageable but noticeable β a second handle would be welcome for carrying it up stairs.β
ess-news.com β Anker Solix S2000 review: 2 kWh power station built for the long haul Β· 2026-05 Β· [mixed]
- B8
βLacks a dedicated handle for carrying with one hand, making transport less convenient despite the relatively compact 35.7 lb weight.β
geardiary.com β Anker SOLIX S2000 Review Β· 2026-07 Β· [negative]
- B12
βEasily powered a fridge and various kitchen gadgets for over 60 hours without needing a recharge.β
geardiary.com β Anker SOLIX S2000 Review Β· 2026-07 Β· [positive]
Research compiled November 4, 2026.
Who Should Buy Which
Buy the DELTA 3000 Gen4 if youβ¦
- βSomething you run pulls more than 1,500 W. The DELTA 4 (3000) runs 3,600 W and surges to 7,200 WA2.
- βYour outages run into a second night. It ends the 1,645 Wh blackout night with 966 Wh left, against 63 Wh.
- βYou'll recharge from serious solar. It takes 1,000 W on one input at 11 to 60 VA5, against the S2000's 400 W.
- βYou camp whole weekends on one charge. It covers the 2,100 Wh weekend, where the S2000 falls 392 Wh short.
Buy the SOLIX S2000 if youβ¦
- βYour loads stay under 1,500 W. A fridge, the router, lights and a CPAP all fit, for a fraction of the price.
- βIt will cycle every day. Rated for 10,000 cycles against 6,000, the smaller battery delivers more lifetime energy.
- βYou'll carry it. 35.7 lb against 57.3 lb.
- βYou need it before December. The S2000 is on sale now, and EcoFlow ships the DELTA 4 (3000) in early DecemberA10.
If neither fits
If your day looks like Van Life Daily, skip both. That day needs 4,685 Wh, neither holds it, and neither takes an extra battery. Look at a station with an expansion port, like the bigger DELTA 4.
The Bottom Line
For a 2 kWh job, I'd buy the S2000. It's rated to deliver more energy over its life than the DELTA 4 (3000), it's the lighter box to haul, and it costs a fraction as much.
Step up only for the inverter. If something you run pulls past 1,500 W, or your outages run into a second night, the DELTA 4 (3000) is the one that keeps going. Otherwise the step up buys a sealed battery rated for fewer cycles.
Frequently Asked Questions
Answers drawn from the spec record and cited owner research.
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 SOLIX S2000 sells for $700 and is on sale now.
Is the DELTA 4 (3000) worth it over the Anker SOLIX S2000?
Only if you need its inverter. It runs 3,600 W against the S2000's 1,500 W and holds 3,072 Wh against 2,009.6 Wh. The S2000 is rated for 10,000 cycles against 6,000, so it delivers more energy over its rated life for a fraction of the price.
Can I add a battery to the DELTA 4 (3000) or the SOLIX S2000?
No. Neither has an extra-battery port, so 3,072 Wh and 2,009.6 Wh are their ceilings. EcoFlow offers expansion only on the bigger DELTA 4.
Which one charges faster from solar?
The DELTA 4 (3000). It accepts 1,000 W on one input at 11 to 60 V, against 400 W for the SOLIX S2000. With enough panels it refills in about three hours of strong sun, while the S2000 needs about five.
How many years will each battery last?
At one full cycle a day, the SOLIX S2000 reaches its 10,000-cycle rating in 27.4 years. The DELTA 4 (3000) is rated for 6,000 cycles, or 16.4 years at the same pace. Neither battery stops at its rating; it just holds less.
Where to buy
EcoFlow DELTA 3000 Gen4
$1,699.00
$1,699.00 Β· direct from EcoFlow
Anker SOLIX S2000Pick
$729.99
$729.99 Β· direct from Anker
Last checked 31 days ago. Prices move β check before you buy.
Prices may vary by retailer and are subject to change.