Head-to-head test
EcoFlow DELTA 3000 Gen4 vs Anker SOLIX F3800 PLUSSmaller Battery, Twice the Cycle Rating. Is 3,072 Wh Enough?
The DELTA 4 (3000) holds less and can never hold more, but EcoFlow rates it for twice the Plus's cycles and it costs less per watt-hour. I'd buy it unless you'll ever need more than 3,072 Wh or something in your house runs on 240 V.
Black Friday · 23 days out
Price to beat:SOLIX F3800 PLUS $2,300
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 → · Anker SOLIX F3800 PLUS →
Written by Gunner GustafsonUpdated
Whole-Home Backup Tester, Station Arena Test Desk
Spec deltas
Gunner’s take
Whole-Home Backup Tester
The DELTA 4 (3000) is the smaller battery, and it stays that way.
EcoFlow gave it 3,072 Wh and no extra-battery portA6. Anker's SOLIX F3800 PLUS starts at 3,840 Wh and takes Anker's expansion batteries. So the first question is whether 3,072 Wh is a number you'll still be happy with a few winters from now.
Then the small box turns the tables on lifespan.
EcoFlow rates the DELTA 4 (3000) for 6,000 cycles and Anker rates the Plus for 3,000. Multiply each by its battery and the smaller one is rated to deliver more energy over its life, 18,432 kWh against 11,520 kWh.
The Plus spends its extra money on a house system.
It costs $2,600 against $1,699 for the EcoFlow, and it runs 6,000 W with a 240 V outlet, surges to 9,000 W and takes 3,200 W of solar. The DELTA 4 (3000) runs 3,600 W and surges to 7,200 W from ordinary 120 V outletsA2, in a box that weighs 57.3 lb to the Plus's 132.3 lb.
What the Numbers Reveal
Each conclusion stated first — the numbers behind it on one line, the full analysis below.
solar input
Day two runs on whatever refills the battery. A full 1,000 W of sun puts 3,072 Wh back in a little over three hours, so with good panels the DELTA 4 (3000) recovers by early afternoon. What it can't do is bank more than 3,072 Wh for a cloudy stretch, because there's nowhere to put it. The Plus can take an expansion battery for exactly that.
DELTA 4 (3000): 3,072 Wh, no extra-battery portA68-Hour Blackout: the DELTA 4 (3000) ends with 966 Wh left, the Plus with 1,619 WhSolar input: one 1,000 W input on the DELTA 4 (3000), 3,200 W on the Plus
Why it mattersIf your outages last a night, the DELTA 4 (3000) is enough. If they last a week in winter, the Plus is the one you can build up to meet them.
rated cycles
That only counts if you actually cycle it. A backup that sits full in a closet and runs a dozen nights a year will never reach either rating. A cabin or a solar setup that drains and refills every day will, and there the DELTA 4 (3000) works out at $0.09 per lifetime kWh against $0.23 for the Plus.
DELTA 4 (3000): 6,000 cycles, 3,072 WhSOLIX F3800 PLUS: 3,000 cycles, 3,840 WhDaily use: 16.4 years against 8.2 years by the cycle ratings
Why it mattersIf it will cycle daily on solar, the cycle rating is a strong reason to take the DELTA 4 (3000). If it's a closet backup, skip this and decide on capacity.
weight
In July the EcoFlow can ride to the lake in the back seat and carry the whole camping weekend. In January it goes back beside the fridge. One reviewer found the Plus's wheels stall on small bumpsB8, so it lives wherever you first park it.
DELTA 4 (3000): 57.3 lb, a handle at each endA7SOLIX F3800 PLUS: 132.3 lb on wheelsWeekend Camping: the DELTA 4 (3000) covers 2,100 Wh with 511 Wh to spare
Why it mattersIf one battery has to cover both camping and outages, it's the DELTA 4 (3000).
The specific dimensions that decide these two units — everything else is a tie.
Growth Path
Selected because: The DELTA 4 (3000) has no battery port, and the Plus takes Anker's expansion batteries.
solar input
Buy the DELTA 4 (3000) as the whole plan. There's no extra-battery portA6, so 3,072 Wh is the ceiling for as long as you own it. The Plus starts higher at 3,840 Wh and adds Anker's expansion batteries behind the same inverter.
If the ceiling worries you, look one size up in EcoFlow's own range. The bigger DELTA 4 has the battery port this one lacksA6. I'd only take the smaller one over the Plus if I already knew my number.
Your Life, Your Pick
Selected because: Both finish every scenario but Van Life Daily, and the Plus ends the blackout with far more left.
One night is a draw. The second night belongs to the Plus. The eight-hour blackout asks for 1,645 Wh. The DELTA 4 (3000) ends with 966 Wh and the Plus with 1,619 Wh, nearly a full second night in hand.
Leave the house and the order flips. Weekend Camping and the tailgate go to the DELTA 4 (3000), because the Plus doesn't travel without a truck and a second person. Van Life Daily asks 4,685 Wh and neither gets there alone. The EcoFlow comes up 2,074 Wh short and has no way to add a battery to close it.
Lifetime Value
Selected because: The smaller battery is rated for twice the cycles, which changes what each one costs to own.
cost / lifetime kWh
On paper, the smaller battery has the longer life. EcoFlow rates the DELTA 4 (3000) for 6,000 cycles and Anker rates the Plus for 3,000. Used every day, that's 16.4 years against 8.2, twice the working life. Neither battery stops dead at its rating; each keeps about 80% of its capacity past it.
The cost to own follows the cycles. Spread over its rated life, the DELTA 4 (3000) costs $0.09 per kWh delivered against $0.23 for the Plus. Both warranties run five years, EcoFlow's with app registrationA9, so the warranty ends long before either rating. It pays off only if you cycle the battery hard.
Portability & Form Factor
Selected because: 57.3 lb against 132.3 lb, and only one of them goes in a car.
weight
I'd carry the DELTA 4 (3000) to the truck myself. It's 57.3 lb with a handle at each endA7, a bend-your-knees lift for one person. The Plus is 132.3 lb, more than twice as heavy, and it moves on wheels.
The Plus's wheels like a smooth floor. One reviewer found its big rear wheels fine on grass but halted by small bumpsB8. On a garage slab that never matters. Up a gravel drive, it's a job for two.
What the Specs Don't Tell You
Selected because: The Plus starts bigger motors, and the EcoFlow switches over faster on paper.
rated cycles
The Plus starts the bigger motors. It surges to 9,000 W against 7,200 W and runs 6,000 W continuously to the EcoFlow's 3,600 W. A big air compressor is where you'd feel it. A kitchen fridge starts on either.
For a desk computer, the EcoFlow has the quicker rated switchover. EcoFlow rates it no worse than 10 ms and Anker rates the Plus no worse than 20 ms, both ceilings rather than measurements. One reviewer running the Plus through a home setup saw the lights barely flickerB3. A router rides through either; a fussy desktop power supply is where the faster rating earns its place.
Every port, labelled
What plugs in where, and how much it takes
EcoFlow DELTA 3000 Gen4
Front panel
- 1USB-C · 140 WOutUp to 140 W (USB-PD up to 28 V at 5 A). The port for a laptop.
- 22× USB-C · 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 · 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.
- 54× 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 · Product image, EcoFlow Japan store · numbers and labels are ours. Ratings from EcoFlow’s US spec table; outlet shapes read by us from EcoFlow’s picture, taken of the Japanese unit, which shares the US panel.
Input side
- 1Solar/DC in · 1,000 WIn11 to 60 V, up to 20 A, 1,000 W.
- 2AC in · 1,800 WIn100–120 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 doesn’t take extra batteries.
Photo: EcoFlow · Product image, EcoFlow Japan store · numbers and labels are ours. Ratings from EcoFlow’s US spec table and the panel’s own printing.
Anker SOLIX F3800 PLUS
Front panel
- 112 V car socket · 120 WOutA 12 V car socket behind a cap, 12 V at 10 A, with its own button.
- 23× USB-C · 100 WOutThree USB-C ports, up to 100 W each. Output only, Anker says.
- 32× USB-A · 12 WOutTwo USB-A ports, up to 12 W each.
The AC outlets are on the left side and the inputs on the right side, mapped below.
Photo: Anker · Product image, Anker SOLIX store · numbers and labels are ours. Ratings from Anker’s US F3800 Plus spec table (ankersolix.com/products/f3800-plus); port counts read from Anker’s picture.
Outlet side
- 1TT-30R · 120 VOutA TT-30R RV outlet, printed 120V 25A Max: up to 3,000 W at 120 V by Anker’s figure. The plug on a camper’s 30 A shore-power cord.
- 2L14-30R · 240 VOutA 120/240 V twist-lock, 25 A, up to 6,000 W. The F3800 Plus’s only 240 V outlet, and the one Anker names for charging an EV or feeding a transfer switch.
- 36× 20 A outletsOutSix NEMA 5-20R outlets in two groups of three, each group up to 2,400 W. Anker says the left three are the UPS outlets.
Beside the outlets, two reset buttons printed OVERCHARGE PROTECTION.
Photo: Anker · Product image, Anker SOLIX store · numbers and labels are ours. Ratings printed on Anker’s panel and in Anker’s US F3800 Plus spec table and store FAQ (ankersolix.com/products/f3800-plus).
Input side
- 1Home panel & gen portIn · OutAnker’s HPP and generator adapter port: 120/240 V, up to 6,000 W in and 6,000 W out. A 120 or 240 V generator plugs in here, or Anker’s Home Power Panel.
- 2AC in · 1,800 WInThe 120 V charging inlet: up to 1,800 W (15 A for under three hours, 12 A continuous).
- 32× Solar in · 1,600 WInTwo solar inputs, each 11 to 165 V at up to 17 A and 1,600 W: 3,200 W of panels in all.
- 4Battery portIn · OutA covered port marked with a battery, for Anker’s BP3800: up to six, 3.84 kWh each, by Anker’s spec table.
- 5Generator portInA covered port marked with a generator: Anker’s SOLIX Generator port, rated 60 V and 120 A.
Between the AC inlet and the solar inputs, a reset button printed OVERCHARGE PROTECTION. The front panel is mapped above.
Photo: Anker · Product image, Anker SOLIX store · numbers and labels are ours. Ports read by us from Anker’s picture; names and ratings from Anker’s US F3800 Plus spec table and store FAQ (ankersolix.com/products/f3800-plus).
Strengths & trade-offs
EcoFlow DELTA 3000 Gen4
Strengths
- +Costs $901 less
- +Lighter by 75 lb
- +Rated for 6,000 charge cycles — much longer battery lifespan
Trade-offs
- –Weaker inverter (-2,400W) limits appliance compatibility.
- –Sealed capacity — the SOLIX F3800 PLUS can add batteries to grow past 3,072Wh; this one can't.
Anker SOLIX F3800 PLUS
Strengths
- +Larger battery capacity
- +Higher AC output
- +Faster solar charging
Trade-offs
- –Substantially more expensive (+$901) than the DELTA 3000 Gen4.
- –Significantly heavier (+75 lbs), making it harder to move.
- –Very heavy unit that may be difficult for one person to lift.
- –Shorter-lived battery — rated for 3,000 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 · 2 nights · needs 2,100Wh
Weekend Camping
Two nights off-grid with essential comfort
DELTA 3000 Gen4
Both cover the 2,100 Wh, the DELTA 4 (3000) with 511 Wh to spare. The Plus weighs 132.3 lb and stays home.
Battery budget usedlower = more headroom
LOAD Phone Charger 15W×6h · LED Lights 40W×8h · Box Fan 75W×14h · CPAP Machine 40W×16h
SCN-02 · 8 hours · needs 1,645Wh
8-Hour Blackout
Keep the essentials running through a night without power
SOLIX F3800 PLUS
Both finish the 1,645 Wh night. The Plus wins on what's left: 1,619 Wh, nearly a second night, against 966 Wh.
Battery budget usedlower = more headroom
LOAD Fridge 150W×8h · Router + Modem 20W×8h · LED Lights (4 bulbs) 40W×6h · Phone Charger 15W×3h
SCN-03 · 8 hours · needs 320Wh
CPAP Overnight
Sleep therapy without interruption — the #1 medical use case
Either unit
Both cover a CPAP night many times over. EcoFlow publishes a noise ceiling for the DELTA 4 (3000) and Anker publishes no figure for the Plus, so price and weight decide it.
Battery budget usedlower = more headroom
LOAD CPAP Machine 40W×8h
SCN-04 · 8 hours · needs 910Wh
Remote Workday
Full work day off-grid without power anxiety
Either unit
Both power your workstation all day without strain. At these utilization levels the real difference is USB-C for direct laptop charging — 140W on the DELTA 3000 Gen4 against 100W — which beats the inverter for convenience and wastes less energy.
Battery budget usedlower = more headroom
LOAD Laptop 60W×8h · External Monitor 30W×8h · Router + Modem 20W×8h · Phone Charger 15W×2h
SCN-05 · 4 hours · needs 670Wh
Tailgate Party
Game day power for the crew
DELTA 3000 Gen4
The SOLIX F3800 PLUS at 132.3 lbs is not a take-along — it rolls off a truck bed if it travels at all, so this scenario belongs to the DELTA 3000 Gen4 by default — and it earns it, covering the 670Wh with 1,941Wh to spare. Capacity was never the SOLIX F3800 PLUS's problem here; getting to a tailgate was.
Battery budget usedlower = more headroom
LOAD Blender 400W×0.5h · LED TV (55") 80W×4h · Bluetooth Speaker 15W×4h · Phone Charger (×3) 45W×2h
SCN-06 · 24 hours · needs 4,685Wh
Van Life Daily
A full day of mobile living — the ultimate endurance test
Neither unit
Neither covers 4,685 Wh. The DELTA 4 (3000) is 2,074 Wh short and can't add a battery. The Plus is 1,421 Wh short and can.
Battery budget usedlower = more headroom
LOAD Mini-Fridge 150W×24h · Laptop 60W×4h · Phone Charger 15W×3h · LED Lights 40W×5h · Fan 75W×8h
The Load Test
RUNTIME = (Wh × 0.85) ÷ 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: SOLIX F3800 PLUS runs 15.9h vs 12.7h.
$2,599.99 list · direct from Anker
Planning for more than this? Describe your whole setup and get it sized →
Modeled from the spec record — same math as the tables below. Methodology
Runtime by appliance
Real-world runtime estimates for common appliances, modeled at 85% inverter efficiency.¹
Essentials
The basics you need runningscale 0–217.6hComfort & Convenience
Makes off-grid life actually enjoyablescale 0–43.5hHigh-Draw Appliances
These reveal the real limitsscale 0–3.3h¹ Runtime = (capacity × 0.85) ÷ 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 — see methodology.
Conclusion
November 4, 2026
Verdict: the EcoFlow DELTA 3000 Gen4
I'd buy the DELTA 4 (3000) if 3,072 Wh covers your longest night and everything you'd back up runs on 120 V. It costs $1,699 to the Plus's $2,600, weighs 57.3 lb against 132.3 lb, and EcoFlow rates its battery for 6,000 cycles to Anker's 3,000. What it gives up is room: no battery portA6, one 1,000 W solar input and nothing at 240 V. A deep well pump, a plan to add batteries, or outages that run for days flip the call to the Plus. The DELTA 4 (3000) ships in early December, and nobody outside EcoFlow has tested one yetA0A10.
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.
$1,699.00 · direct from EcoFlow
or check the SOLIX F3800 PLUS price$2,599.99 list
Written by Gunner Gustafson, Whole-Home Backup Tester · Station Arena Test Desk · 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): UPS, Tailgating, Apartment Balcony.
Full specifications
ᵈ Derived: price ÷ rated capacity. See the data behind our comparisons →
Comparison ToolAdd more power stations, side by sideOpen Tool →How these numbers are produced
Numeric verification
Every figure on this page traces to our spec database or arithmetic on it — no estimated numbers.
Owner claims
Statements about owner experience are cited to published reviews — see Sources & Research Notes below.
Runtime model
Runtime = (rated capacity × 0.85 inverter efficiency) ÷ 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 →Class ranking (the star rating)
Each unit's star score is a category ranking, not customer reviews — 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 5★. Here, DELTA 3000 Gen4 rates 4.8/5 (86th percentile of 29 Large-class units), and SOLIX F3800 PLUS rates 4.4/5 (67th percentile of 22 Home Backup-class units).
How the class ranking is computed →Test Notes & Caveats
Hidden gotchas and advantages we spotted that you won't find on the product page.
Less Than Half the Weight
The DELTA 4 (3000) is 57.3 lb, a one-person lift into a car. The SOLIX F3800 PLUS is 132.3 lb and rolls on wheels to wherever it will live.
Sealed at 3,072 Wh
There's no extra-battery port, so what you buy is all it will ever hold. The SOLIX F3800 PLUS takes Anker's expansion batteries. If your needs might grow, this is the strongest reason on the page to pay more.
Surge Power: Ratio and Ceiling Disagree
The DELTA 3000 Gen4 holds the higher surge-to-continuous ratio (2× vs 1.5×), but the SOLIX F3800 PLUS holds the higher absolute surge ceiling — 9,000W against 7,200W. These measure different things. The ratio says how much headroom an inverter keeps above its own rating; the ceiling says how big a startup spike it can actually swallow. A motor draws a number of watts at switch-on, not a multiple of someone else's rating, so on raw starting ability the SOLIX F3800 PLUS is the stronger unit here — while the DELTA 3000 Gen4 is the one running further below its own limit at steady state.
UPS Switchover: ≤10ms vs ≤20ms
Both list a UPS mode, at different rated speeds. The DELTA 3000 Gen4 is rated ≤10ms — quick enough on paper that desktop PCs and routers should ride through, treating that as the rating it is. The SOLIX F3800 PLUS is rated ≤20ms — fine on paper for routers and most electronics; the fussiest PC power supplies sit right at this line. If a computer with unsaved work is the thing being protected, the stated class is worth the attention; nothing here is a lab result.
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 — 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 DELTA 3000 Gen4 works out at 2.9 years of cover per $1,000 spent against the SOLIX F3800 PLUS's 1.9, 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 3,000. In real life: at daily use, that's 16.4 vs 8.2 years. At weekend use (twice a week), it's 58 vs 29 years. After hitting the cycle limit, the battery doesn't die — it drops to ~80% of original capacity, which is still very usable.
Only EcoFlow Publishes a Noise Figure
EcoFlow's figure for the DELTA 4 (3000) is a ceiling, the most it should make at a stated load, not a quiet-mode best case. Anker publishes no figure for the SOLIX F3800 PLUS. That doesn't make the Plus louder. It means there's nothing to hold it to.
Full record above — the Test Desk pick is the DELTA 3000 Gen4.
Check DELTA 3000 Gen4 price →or check the SOLIX F3800 PLUS priceOwnership Analysis
What happens after you buy — 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
│ warranty ends · Reaching the cycle rating means ~80% capacity remains — degraded, not dead.
Analyst note
The DELTA 3000 Gen4 wins on both sticker price and long-term value. At $0.09/kWh over its lifetime, it's meaningfully cheaper to own. Clear value winner.
Delivers each lifetime kWh for $0.14 less — check the DELTA 3000 Gen4 price →
Brand trust
EcoFlow
Ecosystem
Largest in portable power — 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 — 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 — Reddit r/Ecoflow_community (~31K members), multiple Facebook groups, and an official community forum
App experience
Rated 4.6/5 iOS (~8,400 ratings) · 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 — 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 — 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) · 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 — 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 — 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 F3800 PLUS
EXPANDABLESupports Anker expansion batteries, so you can add capacity later without replacing the base unit — useful if your needs may climb past 3,840Wh.
Accepts up to 3,200W of solar. Enough for a serious multi-panel array.
Generous port selection supports complex multi-device setups.
Expansion batteries are Anker-specific. You're investing in the Anker ecosystem.
Realistic full solar rechargeat 70% of rated panel output — see methodology
Analyst note
The DELTA 3000 Gen4 is sealed at 3,072Wh, which is fine if that covers you. The SOLIX F3800 PLUS starts at 3,840Wh and can grow beyond it with Anker expansion batteries — real headroom the DELTA 3000 Gen4 doesn't have if your needs climb toward partial-home backup.
What Owners Report
Patterns from published owner reports and long-term reviews — every claim cited to its source below.
EcoFlow DELTA 3000 Gen4
Nobody has lived with a DELTA 4 (3000) yet. It went on sale in the US on November 4 and ships in early DecemberA10, so this page runs on EcoFlow's spec table and FAQ, which I went through, plus our own arithmeticA0A1A4.
I'd want to hold EcoFlow to its fridge claim. EcoFlow says it runs a refrigerator for up to 58 hoursA12. I'd plug my own kitchen fridge into a full battery on Friday night, leave it alone through the weekend, and see what the screen says on Monday morning.
“Capacity 3,072 Wh, LFP (LiFePO4) cells. EcoFlow sells it as the DELTA 3000 Gen4; buyers and the press call the pair the DELTA 4.”
Sources
us.ecoflow.co · jp.ecoflow.co
Anker SOLIX F3800 PLUS
Reviewers who spent months with the Plus mostly like it. One called it a repeat success after a few monthsB7. Another says the fans are barely audible under household loads and only get loud past 4,000 W or at full charging speedB10. Early reviews flagged standby drain, and one reviewer reports Anker's firmware update cut idle use by about halfB9.
Owner reports on the Plus itself are thin, and the detailed one is rough. Our research found little owner commentary on this model specificallyB0. One owner with a large SOLIX setup reported a loud battery pack and support that stopped answeringB1. Another SOLIX owner in the same thread, possibly on a different model, describes fast advance replacementsB2.
“I've called them and submitted tickets via their portal, always very responsive. They've even done advanced replacement for me.”
Sources
campingsolar.us · cleanenergybusinesscouncil.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 · 12 entries]
- Owner support experiences with Anker/Solix diverge sharply — some report being ghosted after repeated contact attempts over a hardware fault, while others describe fast, responsive advanced-replacement service. [SOLIX F3800 PLUS · 2 entries]
- Real-world runtime drops off steeply with load: light loads (lights, router, occasional laptop/e-bike charging) stretch toward the ~17-hour mark, but running a fridge and freezer together drains the base unit in around 7 hours. [SOLIX F3800 PLUS · 2 entries]
- Fan noise is reported as low/background during normal household loads and only becomes noticeably audible under heavy loads (4,000W+) or max-speed charging. [SOLIX F3800 PLUS · 2 entries]
- The unit's near-137 lb weight is a recurring friction point: reviewers note the wheels/handles work for moderate use but struggle over rough terrain, and aggregated user feedback flags portability and packaging as concerns despite praise for raw performance. [SOLIX F3800 PLUS · 2 entries]
- A1
“Capacity 3,072 Wh, LFP (LiFePO4) cells. EcoFlow sells it as the DELTA 3000 Gen4; buyers and the press call the pair the DELTA 4.”
EcoFlow US store, us.ecoflow.com/products/delta-3000-gen4 (spec table, features and FAQ, read 2026-11-04) · 2026-11-04 · [mixed]
- A2
“US 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.”
EcoFlow US store, us.ecoflow.com/products/delta-3000-gen4 (spec table, features and FAQ, read 2026-11-04) · 2026-11-04 · [mixed]
- A4
“AC input 100–120 V, 15 A, 50/60 Hz; X-Stream charging up to 1,800 W from a US wall outlet. Our arithmetic: 1,800 W at 120 V is 15 A, the full rating of an ordinary 15 A circuit, so on a shared circuit you would set the charge rate lower in the EcoFlow app.”
EcoFlow US store, us.ecoflow.com/products/delta-3000-gen4 (spec table, features and FAQ, read 2026-11-04) · 2026-11-04 · [mixed]
- A6
“No 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.”
EcoFlow US store, us.ecoflow.com/products/delta-3000-gen4 (spec table, features and FAQ, read 2026-11-04) · 2026-11-04 · [mixed]
- A7
“Weight 57.3 lb (26 kg); 16.77 × 11.36 × 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).”
EcoFlow US store, us.ecoflow.com/products/delta-3000-gen4 (spec table, features and FAQ, read 2026-11-04) · 2026-11-04 · [mixed]
- A9
“Rated for 6,000 cycles (EcoFlow: "15+ years"). Charges at 32–113°F (0–45°C), runs at 14–113°F (−10–45°C). Wi-Fi and Bluetooth with the EcoFlow app. Warranty: 3 years plus a 2-year extension when registered in the EcoFlow app.”
EcoFlow US store, us.ecoflow.com/products/delta-3000-gen4 (spec table, features and FAQ, read 2026-11-04) · 2026-11-04 · [mixed]
- A10
“On 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 ¥179,900.”
EcoFlow US store, us.ecoflow.com/products/delta-3000-gen4 (spec table, features and FAQ, read 2026-11-04) · 2026-11-04 · [mixed]
- A12
“Powers 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.”
EcoFlow US store, us.ecoflow.com/products/delta-3000-gen4 (spec table, features and FAQ, read 2026-11-04) · 2026-11-04 · [positive]
- B1
“I think it may be a fire hazard with this crazy noise it's making. I have emailed Anker support over 5 times... Anker support is ghosting me after I spent over 20k on their solix line and solar panels within a month.”
DIY Solar Forum — "Big issue with Anker Solix F3800 plus battery pack (Large Anker Solix setup)" · 2025-08 · [negative]
- B2
“I've called them and submitted tickets via their portal, always very responsive. They've even done advanced replacement for me.”
DIY Solar Forum — "Big issue with Anker Solix F3800 plus battery pack (Large Anker Solix setup)" (reply from another Solix owner) · 2025-08 · [positive]
- B3
“In UPS mode, the F3800 Plus can switch in about 20ms. There's more cabling and components when connected to the whole home setup, but the lights still barely flicker.”
Android Authority — "Anker SOLIX F3800 Plus with Home Power Panel review: Total power backup" · 2025-05 · [positive]
- B7
“After a few months with its successor, I can easily say it is a repeat success.”
AppleInsider — "Anker Solix F3800 Plus portable power station review: investment in reliable home power" · 2025-08 · [positive]
- B8
“The big wheels in the back are enough to go over grassy terrain, but avoid anything too challenging. Small bumps can be enough to slam everything to a halt.”
AppleInsider — "Anker Solix F3800 Plus portable power station review: investment in reliable home power" · 2025-08 · [mixed]
- B9
“Early reviews focused heavily on the standby drain of the Anker SOLIX F3800 Plus. Anker later released a firmware update that said it can cut idle use by about 50%.”
VoltNest — "Anker SOLIX F3800 Plus Review: My Honest Test Results" · 2026-04 · [mixed]
- B10
“Under normal loads (lights, fridge, TV), the fans are barely audible. It only gets loud when you're pulling over 4,000W or charging at max speed.”
CampingSolar.us — "Anker SOLIX F3800 Plus Review: The Ultimate 240V Home & RV Power" · 2026-02 · [positive]
- B11
“Anker really addressed this issue with the F3800 Plus. You now get a true 3,200W solar input, which is compatible with normal MC4 solar panels.”
TheSolarLab — "Anker SOLIX F3800 Plus Review: Big Power, Big Price?" · unknown · [positive]
Research compiled November 4, 2026.
Who Should Buy Which
Buy the DELTA 3000 Gen4 if you…
- →3,072 Wh covers your longest night. The eight-hour blackout leaves it 966 Wh to spare.
- →It will cycle every day on solar. EcoFlow rates it for 6,000 cycles to the Plus's 3,000.
- →You'll lift it. 57.3 lb against 132.3 lb, and it goes camping too.
- →You can wait until December. EcoFlow says it ships early that monthA10.
Buy the SOLIX F3800 PLUS if you…
- →You're building a system, not buying a box. It takes Anker's expansion batteries.
- →Something in the house runs on 240 V, like a deep well pump or an electric dryer.
- →You own more than 1,000 W of panels. It takes 3,200 W, on standard MC4 plugs by one reviewer's accountB11.
- →Your outages run for days. It ends the eight-hour blackout with 1,619 Wh, nearly a second night.
If neither fits
If the job is a CPAP for a night or two, both are far more than you need. The CPAP night uses 12% of the DELTA 4 (3000)'s usable battery. A small station built for a bedside covers it for a fraction of the money.
The Bottom Line
If 3,072 Wh covers your longest night and your house runs on 120 V, buy the DELTA 4 (3000). It's rated for twice the cycles of the Plus, weighs less than half as much and costs less per watt-hour.
If you're building toward a house on batteries and panels, buy the Plus. It has the battery port, the 240 V outlet and the solar input to grow into that the DELTA 4 (3000) never will.
Frequently Asked Questions
Answers drawn from the spec record and cited owner research.
Can the EcoFlow DELTA 4 (3000) add extra batteries?
No. It has no extra-battery port, so 3,072 Wh is its limit. The SOLIX F3800 PLUS takes Anker's expansion batteries, and EcoFlow's bigger DELTA 4 has a battery port.
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 and says it ships in early December. The SOLIX F3800 PLUS usually sells for $2,600.
Which battery lasts longer, the DELTA 4 (3000) or the F3800 Plus?
The DELTA 4 (3000), on paper. EcoFlow rates it for 6,000 cycles and Anker rates the Plus for 3,000, which works out to 16.4 years against 8.2 years of daily use. Both carry a five-year warranty, EcoFlow's with app registration.
Which is better for a power outage?
For one night, either. In our eight-hour blackout the DELTA 4 (3000) ends with 966 Wh left and the SOLIX F3800 PLUS with 1,619 Wh. For outages that run several days, the Plus's bigger battery, 3,200 W solar input and expansion batteries matter more.
Can the DELTA 4 (3000) run 240 V appliances?
No. Its outlets are 120 V. The SOLIX F3800 PLUS has a 240 V outlet for loads like a deep well pump or an electric dryer.
Where to buy
EcoFlow DELTA 3000 Gen4Pick
$1,699.00
$1,699.00 · direct from EcoFlow
Anker SOLIX F3800 PLUS
$2,599.99
$2,599.99 · direct from Anker
Last checked 31 days ago. Prices move — check before you buy.
Prices may vary by retailer and are subject to change.