Head-to-head test
EcoFlow DELTA 3800 Gen4 vs Anker SOLIX F3000Bigger Battery, Lighter Box. Is It Worth More Than the F3000?
The DELTA 4 (3800) packs 691 Wh more into a box 24 lb lighter, and charges a premium per watt-hour for it. I'd buy the F3000 for a box that stays home, unless you'll carry yours or want a second blackout night without recharging.
Black Friday · 23 days out
Price to beat:SOLIX F3000 $1,300
The lowest we have recorded. A Black Friday price above it is a sale this unit has already had.
Full profiles: EcoFlow DELTA 3800 Gen4 → · Anker SOLIX F3000 →
Written by Gunner GustafsonUpdated
Whole-Home Backup Tester, Station Arena Test Desk
Spec deltas
Gunner’s take
Whole-Home Backup Tester
EcoFlow fit more battery into less box.
The DELTA 4 (3800) holds 3,763 Wh at 67.5 lbA1A7. Anker's SOLIX F3000 holds 3,072 Wh at 91.5 lb. That's 691 Wh more and 24 lb less, behind the same 3,600 W rating and 7,200 W surgeA2.
The catch is what those extra watt-hours cost.
The DELTA 4 (3800) sells for $2,199 against the F3000's $1,500. The $699 between them buys 691 Wh, and that's dearer per watt-hour than the F3000's whole battery. You're paying for the lighter box and the extra night as much as for energy.
Everything else splits by where the box will live.
The F3000 takes 2,400 W of solar against 2,000 W across the DELTA 4's two inputsA5, adds an RV-style 30 A outlet and a 12 V car socket, and ships now. The DELTA 4 (3800) is rated for 6,000 cycles against 4,000, switches over in no more than 10 ms against 20 ms, and ships in late NovemberA10.
What the Numbers Reveal
Each conclusion stated first — the numbers behind it on one line, the full analysis below.
Capacity
Usually the bigger box is the better buy per watt-hour. Here it runs the other way, because the premium also buys 24 lb less weight and a faster switchover rating. And since both take extra batteries, starting bigger isn't the only road to more energy. Either one grows later.
DELTA 4 (3800): 3,763 WhA1SOLIX F3000: 3,072 WhThe price gap between them is $699Both take extra batteriesA6
Why it mattersIf energy per dollar is the point, buy the F3000 and add a battery when you need one.
solar input
In a blackout the wall is gone, so what's in the box is what you have until the sun is up. The F3000 refills faster from panels, but that takes panels, sun and someone to set them out. The DELTA 4's lead is already in the battery when you wake up.
8-Hour Blackout needs 1,645 WhDELTA 4 (3800) finishes with 1,554 Wh left, 94% of a second nightSOLIX F3000 finishes with 966 Wh left, 59% of a second nightSolar: 2,000 W across two inputsA5 against 2,400 W
Why it mattersIf your outages run past one night and you don't own panels, the bigger battery is worth more than the cheaper one.
rated cycles
For an off-grid cabin that cycles it every night, that's years more service from the same purchase. For a backup box that runs a handful of outages a year, neither rating will ever come into play.
DELTA 4 (3800): rated for 6,000 cyclesA9SOLIX F3000: rated for 4,000 cyclesAt one cycle a day: 16.4 years against 11
Why it mattersDaily cyclers should count the DELTA 4's cycle rating in its favour. Everyone else can ignore it.
The specific dimensions that decide these two units — everything else is a tie.
Your Life, Your Pick
Selected because: The DELTA 4 (3800) takes the blackout and camping rows on margin. The rest go to both, or to neither.
The extra battery shows up on the second night. Both finish our 8-hour blackout. The DELTA 4 (3800) wakes up with 94% of another night still in it, the F3000 with 59%.
Camping leans the same way, and the rest is a wash. After our weekend the F3000 has 511 Wh in hand and the DELTA 4 has 1,099 Wh. A CPAP night, a workday and a tailgate fit easily in both. Van Life Daily asks for 4,685 Wh, more than either holds, and the DELTA 4 comes up 1,486 Wh short against 2,074 Wh.
Portability & Form Factor
Selected because: 3,763 Wh at 67.5 lb against 3,072 Wh at 91.5 lb on wheels.
weight
One box is built to roll and the other to carry. The F3000 has wheels and a pull handle, and one reviewer says it rolls smoothly with a handle that doesn't wiggleB1. The DELTA 4 (3800) has a handle at each end, and EcoFlow sells a folding cart for it separatelyA7.
Wheels don't do stairs. Another reviewer said the F3000 barely passed a manual liftB8. At 67.5 lb, the DELTA 4 (3800) is a two-handed lift one adult can make, and I'd carry it down basement stairs alone. The F3000 I'd want a second person for.
Growth Path
Selected because: Both take extra batteries, so the capacity you start with isn't the capacity you keep.
solar input
Both grow, so don't buy the bigger box for capacity alone. The DELTA 4 (3800) takes up to two extra batteries, either the DELTA Pro 3's or the 2,048 Wh DELTA 3 Max Plus's, and EcoFlow quotes 4 to 12 kWh in allA6. The F3000 takes Anker's expansion batteries.
The difference is where you start. On the DELTA 4 you begin with 691 Wh more in the base unit. On the F3000 you begin with $699 still in your pocket, and that goes toward whatever battery you add later.
Lifetime Value
Selected because: 6,000 cycles against 4,000 make the DELTA 4 (3800) the cheaper one to own over its life, if you use the cycles.
cost / lifetime kWh
Over its whole life, the DELTA 4 (3800) is the cheaper box. Spread each price across every cycle it's rated for and it comes to $0.10 per kWh against $0.12. It's the one money argument EcoFlow wins on this page.
It only pays if you spend the cycles. At one cycle a day, the F3000's rating lasts 11 years. A garage backup that sees a few outages a year will be replaced long before its battery wears out, so for that buyer the lower sticker price is the one that counts.
What the Specs Don't Tell You
Selected because: Switchover ratings of no worse than 10 ms against 20 ms, and a couple of details the spec table won't show.
rated cycles
The DELTA 4 (3800) has the faster switchover rating. EcoFlow rates it at no worse than 10 ms and Anker rates the F3000 at no worse than 20 ms, ceilings rather than measurements. A router rides through either. A desktop with a fussy power supply is where the faster rating could matter.
Two things the spec table won't show you. EcoFlow's X-Boost mode is off whenever the unit charges from the wall or runs in bypassA2. And its noise figures are EcoFlow's own: 40 dB or less up to 1,800 W, 50 dB or less at the full 3,600 WA8. Anker publishes none for the F3000, though one reviewer called it practically silent under heavy loadsB5.
In the makers’ pictures
What you’d actually be living with
Every port, labelled
What plugs in where, and how much it takes
EcoFlow DELTA 3800 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
- 12× Solar/DC in · 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 · 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.
- 3Battery portIn · OutTakes up to two of EcoFlow’s DELTA 3 Max Plus or DELTA Pro 3 extra batteries; EcoFlow quotes 4–12 kWh.
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 F3000
Front panel
- 1TT-30 RV outlet · 30 AOutA TT-30R outlet printed 120V~30A Max, 3600W Max. A camper’s 30 A cord plugs in, and Anker’s guide uses it for an inlet box or transfer switch too.
- 24× 20 A outletsOutFour NEMA 5-20R outlets printed 120V~20A Max, 2400W Max. The UPS outlets, by Anker’s guide. All the AC outlets share 3,600 W and a 7,200 W surge.
- 3DC port · 13.4 V 30 AOutA DC output behind the cover, 13.4 V at 30 A. Anker’s guide calls it an Anderson port and recommends Anker’s Anderson cable.
- 4Car socket · 12 V 10 AOutA 12 V car socket behind the same cover, 10 A by Anker’s guide, switched by its own button.
- 52× USB-C · 100 WOutUp to 100 W each (to 20 V at 5 A), by Anker’s guide.
- 62× USB-A · 12 WOutUp to 12 W each (5 V at 2.4 A), by Anker’s guide.
The two round buttons beside the outlets are overload-protection buttons, by Anker’s guide.
Photo: Anker · Product image, Anker SOLIX store · numbers and labels are ours. Ratings printed on Anker’s panel and from Anker’s US F3000 user guide; the AC totals from our catalogue.
Back and input side
- 12× solar in · 2,400 WInTwo inputs under the flap: high-voltage, 11–165 V at 17 A, up to 1,600 W; and low-voltage, 11–60 V at 17 A, up to 800 W. 2,400 W together.
- 2AC in/outIn · OutAC charging and output in one covered port: 1,800 W from a wall outlet (120 V, 15 A), up to 3,600 W through Anker’s TT-30 or EV charging cable.
- 3Battery portIn · OutA covered port with a battery symbol, for Anker’s BP3000 expansion batteries.
- 4DC generator inInA covered DC input, 60 V and 120 A max by Anker’s guide, for a DC generator.
All three side ports are shown with their covers closed.
Photo: Anker · Product image, Anker SOLIX store · numbers and labels are ours. Port names printed on Anker’s panel; ratings from Anker’s US F3000 user guide and Anker’s store.
Strengths & trade-offs
EcoFlow DELTA 3800 Gen4
Strengths
- +Lighter by 24 lb
- +Larger battery capacity
- +Rated for 6,000 charge cycles — much longer battery lifespan
Trade-offs
- –Substantially more expensive (+$699) than the SOLIX F3000.
Anker SOLIX F3000
Strengths
- +Costs $699 less
- +Faster solar charging
Trade-offs
- –Significantly heavier (+24 lbs), making it harder to move.
- –Very heavy unit that may be difficult for one person to lift.
- –Shorter-lived battery — 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 · 2 nights · needs 2,100Wh
Weekend Camping
Two nights off-grid with essential comfort
DELTA 3800 Gen4
Both cover the 2,100 Wh weekend. The DELTA 4 (3800) ends it with 1,099 Wh to spare against 511 Wh, and it's 24 lb lighter to carry to the site.
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
DELTA 3800 Gen4
Both get through the night. The DELTA 4 (3800) wakes up with 94% of a second night left, the F3000 with 59%.
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
A CPAP is about 40W for eight hours, so both of these cover the night several times over — capacity isn't the question here. What would separate them is fan noise, but SOLIX F3000 doesn't publish a figure, so there's nothing to hold it to. Buy on price, weight, and whether you can live with a fan you haven't heard.
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 3800 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
Either unit
Both handle game day easily. Since capacity isn't the deciding factor, weight is: at 67.5 lbs the DELTA 3800 Gen4 is the one you'll be glad you brought. Fan noise under load is worth a listen too — it's audible in the lulls between songs.
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 holds 4,685 Wh. The DELTA 4 (3800) comes up 1,486 Wh short, the F3000 2,074 Wh. Both take extra batteries, so plan on one.
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: DELTA 3800 Gen4 runs 15.6h vs 12.7h.
$2,199 list · direct from EcoFlow
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 0–213.2hComfort & Convenience
Makes off-grid life actually enjoyablescale 0–42.6hHigh-Draw Appliances
These reveal the real limitsscale 0–3.2h¹ 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 Anker SOLIX F3000
I'd buy the F3000, unless the box travels or your outages run long. The DELTA 4 (3800) holds 3,763 Wh against 3,072 Wh, weighs 67.5 lb against 91.5 lb, and runs the same 3,600 W with the same 7,200 W surgeA1A2A7. That's the better box. It also costs $699 more, and those extra 691 Wh cost more per watt-hour than the F3000's whole battery does. The F3000 takes 2,400 W of solar against 2,000 W, adds an RV-style 30 A outlet and a 12 V socket, and it's on sale now. If you'll lift it into a car, or want most of a second night left after an 8-hour blackout, the DELTA 4 (3800) earns the money.
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.
$1,699.99 · direct from Anker
Last checked 31 days ago. Prices move — check before you buy.
or check the DELTA 3800 Gen4 price$2,199.00 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): 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 3800 Gen4 rates 4.1/5 (48th percentile of 22 Home Backup-class units), and SOLIX F3000 rates 4.7/5 (82nd percentile of 29 Large-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.
More Battery, Less to Lift
The DELTA 4 (3800) is 67.5 lb with 3,763 Wh. The SOLIX F3000 is 91.5 lb with 3,072 Wh. The F3000 rolls on wheels, which is easier across a garage. The DELTA 4 carries by a handle at each end, which is easier on stairs.
UPS Switchover: ≤10ms vs ≤20ms
Both list a UPS mode, at different rated speeds. The DELTA 3800 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 F3000 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 3800 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 SOLIX F3000 works out at 3.3 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. After hitting the cycle limit, the battery doesn't die — it drops to ~80% of original capacity, which is still very usable.
SOLIX F3000: Noise Level Not Disclosed
The DELTA 3800 Gen4 publishes its noise level (40dB); the SOLIX F3000 doesn't publish one. That isn't evidence the SOLIX F3000 is louder — it means there's no figure to hold it to, and no way to compare the two on this without hearing them. If you're buying for a bedroom, a CPAP, or an apartment, treat the DELTA 3800 Gen4's 40dB as the only published number on the table — a spec-sheet figure, not a measurement — and look for hands-on reports of the SOLIX F3000 before deciding.
Full record above — the Test Desk pick is the SOLIX F3000.
Check SOLIX F3000 price →or check the DELTA 3800 Gen4 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 SOLIX F3000 is cheaper to buy, but the DELTA 3800 Gen4 is cheaper to own. At $0.10/kWh over its lifetime vs $0.12/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 — 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 3800 Gen4
EXPANDABLESupports EcoFlow expansion batteries, so you can add capacity later without replacing the base unit — 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.
SOLIX F3000
EXPANDABLESupports Anker expansion batteries, so you can add capacity later without replacing the base unit — useful if your needs may climb past 3,072Wh.
Accepts up to 2,400W of solar. Enough for a serious multi-panel array.
Limited ports. You'll likely need a power strip or splitter.
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
Both expand, so neither locks you out of growth — decide on capacity, price, and the rest, not the expansion checkbox.
What Owners Report
Patterns from published owner reports and long-term reviews — every claim cited to its source below.
EcoFlow DELTA 3800 Gen4
Nobody owns one yet. The DELTA 4 (3800) went on sale in the US on November 4 and ships in late NovemberA10, so this side of the page is EcoFlow's spec sheet and FAQ plus our own sumsA0A1A7.
I'd want to plug a full fridge into it on a Friday night. EcoFlow claims up to 70 hours on a refrigeratorA12, which would carry it to around Monday evening. I'd want to see what the screen says on Sunday night before I believed that.
“Capacity 3,763 Wh, LFP (LiFePO4) cells. EcoFlow sells it as the DELTA 3800 Gen4; buyers and the press call the pair the DELTA 4.”
Sources
us.ecoflow.co · jp.ecoflow.co
Anker SOLIX F3000
The F3000's best reviews are about its manners. One reviewer measured 20.5 W of idle draw, under Anker's 25 W spec, and called it practically silent under heavy loadsB4B5. In another test, a Vitamix that pops 20 A breakers elsewhere ran on it without troubleB9.
The complaints are about hardware and limits. Its four AC outlets sit too close for bulky plugsB6. An air fryer and a microwave together made it shut itself off for one reviewerB2, and another couldn't charge a Cybertruck because the outlet isn't groundedB10. EV chargers check for a ground before they start, so that one doesn't surprise me.
“Nothing feels cheap or loose — the handle doesn't wiggle and the wheels roll smoothly; the reviewer could lift it alone without straining after taking it to a family picnic two hours away.”
Sources
androidauthority.com · thesolarlab.com · cleantechnica.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 3800 Gen4 · 12 entries]
- Low idle draw and quiet operation are repeatedly cited as the biggest improvements over earlier Anker SOLIX models (F3800/F2600), which reviewers said struggled on both fronts. [SOLIX F3000 · 2 entries]
- Wheels and a deployable handle make the ~90 lb unit manageable to move, but reviewers still describe manually lifting it as a real effort. [SOLIX F3000 · 2 entries]
- Reviewers hit real-world output limits the spec sheet doesn't convey — simultaneous heavy appliance loads and ungrounded high-draw EV charging both triggered shutoffs/failures. [SOLIX F3000 · 2 entries]
- The outlet layout and the switch to a proprietary twist-lock AC charging plug are the most consistent physical-design complaints. [SOLIX F3000 · 2 entries]
- A1
“Capacity 3,763 Wh, LFP (LiFePO4) cells. EcoFlow sells it as the DELTA 3800 Gen4; buyers and the press call the pair the DELTA 4.”
EcoFlow US store, us.ecoflow.com/products/delta-3800-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-3800-gen4 (spec table, features and FAQ, read 2026-11-04) · 2026-11-04 · [mixed]
- A3
“AC 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.”
EcoFlow US store, us.ecoflow.com/products/delta-3800-gen4 (spec table, features and FAQ, read 2026-11-04) · 2026-11-04 · [mixed]
- A5
“Solar: two inputs, 11–60 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.”
EcoFlow US store, us.ecoflow.com/products/delta-3800-gen4 (spec table, features and FAQ, read 2026-11-04) · 2026-11-04 · [mixed]
- A6
“Extra 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 4–12 kWh of expandable capacity.”
EcoFlow US store, us.ecoflow.com/products/delta-3800-gen4 (spec table, features and FAQ, read 2026-11-04) · 2026-11-04 · [mixed]
- A7
“Weight 67.5 lb (30.6 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 (3–4 kWh and 3,600 W).”
EcoFlow US store, us.ecoflow.com/products/delta-3800-gen4 (spec table, features and FAQ, read 2026-11-04) · 2026-11-04 · [mixed]
- A8
“Switches to backup within 10 ms when the grid drops; EcoFlow's FAQ says it does not support HID communication. Noise by EcoFlow's figures: 40 dB or less at up to 1,800 W, 50 dB or less at the full 3,600 W. IP20.”
EcoFlow US store, us.ecoflow.com/products/delta-3800-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-3800-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 $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 ¥240,900.”
EcoFlow US store, us.ecoflow.com/products/delta-3800-gen4 (spec table, features and FAQ, read 2026-11-04) · 2026-11-04 · [mixed]
- A12
“Powers a refrigerator for up to 70 hours, which EcoFlow says is 17 hours (32.6%) longer than the industry average for 3–4 kWh portable power stations. Both figures are EcoFlow's own claims, not our measurement.”
EcoFlow US store, us.ecoflow.com/products/delta-3800-gen4 (spec table, features and FAQ, read 2026-11-04) · 2026-11-04 · [positive]
- B1
“Nothing feels cheap or loose — the handle doesn't wiggle and the wheels roll smoothly; the reviewer could lift it alone without straining after taking it to a family picnic two hours away.”
androidauthority.com — Anker SOLIX F3000 review · 2025-08 · [positive]
- B2
“The battery will often turn itself off if you try to run an air fryer and a microwave at the same time, so simultaneous heavy loads need to be staggered rather than run together.”
androidauthority.com — Anker SOLIX F3000 review · 2025-08 · [mixed]
- B4
“Measured idle draw was 20.5W with only the inverter active — beating Anker's own 25W spec — so it can sit in standby for days without chewing through the battery.”
thesolarlab.com — Anker F3000 Review: Does It Finally Get It Right? · 2025 (exact date unknown) · [positive]
- B5
“Practically silent even under heavy loads — a marked improvement over earlier Anker models that struggled with fan noise.”
thesolarlab.com — Anker F3000 Review: Does It Finally Get It Right? · 2025 (exact date unknown) · [positive]
- B6
“The four standard AC outlets are a bit too close together — plugging in larger adapters or chargers can block the others.”
thesolarlab.com — Anker F3000 Review: Does It Finally Get It Right? · 2025 (exact date unknown) · [negative]
- B8
“At 92 lbs the built-in wheels and extendable handle make it more portable, but it 'barely passed' the reviewer's own manual-lift test.”
thesolarlab.com — Anker F3000 Review: Does It Finally Get It Right? · 2025 (exact date unknown) · [mixed]
- B9
“Ran a high-power Vitamix blender that pops 20A breakers elsewhere without issue during testing.”
cleantechnica.com — Anker SOLIX F3000 Portable Power Station: CleanTechnica Tested · 2025-08 · [positive]
- B10
“Charging a Cybertruck from the F3000 was not successful because the outlet isn't grounded — a real-world limitation the spec sheet doesn't flag.”
cleantechnica.com — Anker SOLIX F3000 Portable Power Station: CleanTechnica Tested · 2025-08 · [negative]
Research compiled November 4, 2026.
Who Should Buy Which
Buy the DELTA 3800 Gen4 if you…
- →You'll lift it. 67.5 lb against 91.5 lb, with 691 Wh more inside.
- →Your outages run past one night. It finishes our 8-hour blackout with 94% of a second night left.
- →You'll cycle it daily at a cabin. It's rated for 6,000 cycles against 4,000.
- →A desktop PC rides on it. Its switchover is rated no worse than 10 ms against 20 ms.
Buy the SOLIX F3000 if you…
- →It will live in the garage. Its wheels handle flat floors, and it costs $699 less.
- →You have panels. 2,400 W of solar input against 2,000 W.
- →You plug in an RV or a 12 V fridge. It has an RV-style 30 A outlet and a 12 V car socket. The DELTA 4 (3800) has neitherA3.
- →You want it now. It's on sale today at $1,500, and the DELTA 4 (3800) ships in late NovemberA10.
If neither fits
If you live in a van and run it hard every day, neither is enough on its own. Our Van Life Daily day needs 4,685 Wh. Both take extra batteries, so budget for one from the first purchase.
The Bottom Line
For a box that stays home, I'd buy the F3000. Same output rating, more solar, an RV outlet, and $699 less for a battery that covers every scenario but Van Life Daily.
The DELTA 4 (3800) is the better box if you buy it on purpose. It's 24 lb lighter, keeps most of a second night after an 8-hour blackout, and grows just like the F3000. If you'll carry it, or you'd rather not depend on the sun the morning after, it's worth the premium.
Frequently Asked Questions
Answers drawn from the spec record and cited owner research.
Is the EcoFlow DELTA 4 (3800) available in the US?
Yes. EcoFlow put it on sale at its US store on November 4, 2026 at $2,199 and says it ships in late November. The SOLIX F3000 is on sale now at $1,500.
Is the DELTA 4 (3800) lighter than the Anker SOLIX F3000?
Yes. It weighs 67.5 lb against 91.5 lb, and it holds more: 3,763 Wh against 3,072 Wh. The F3000 makes up some of the difference with built-in wheels.
Which one has more power output?
Neither. Both are rated 3,600 W continuous with a 7,200 W surge. The DELTA 4 (3800) has the faster switchover rating, no worse than 10 ms against 20 ms.
Which one takes more solar?
The SOLIX F3000, at up to 2,400 W against 2,000 W. The DELTA 4 (3800) splits its 2,000 W across two inputs of 1,000 W each, at 11 to 60 V.
Can you add batteries to either one?
Yes, both. The DELTA 4 (3800) takes up to two extra batteries, and EcoFlow quotes 4 to 12 kWh in all. The F3000 takes Anker's expansion batteries.
Where to buy
EcoFlow DELTA 3800 Gen4
$2,199.00
$2,199.00 · direct from EcoFlow
Anker SOLIX F3000Pick
$1,699.99
$1,699.99 · direct from Anker
Last checked 31 days ago. Prices move — check before you buy.
Prices may vary by retailer and are subject to change.