Head-to-head test
EcoFlow DELTA 3800 Gen4 vs Anker SOLIX F3800 PLUSNearly the Same Battery, and Both Expand. Why Pay for the Plus?
The batteries nearly match and both take extra batteries, so the Plus's extra money goes on a 240 V inverter and a bigger solar input. I'd buy the DELTA 4 (3800) unless something in your house runs on 240 V or your panels add up to more than 2,000 W.
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 3800 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
Battery size doesn't separate these two.
The DELTA 4 (3800) holds 3,763 Wh and Anker's SOLIX F3800 PLUS holds 3,840 Wh, and both take extra batteries. EcoFlow quotes 4 to 12 kWh with up to two of its extra batteriesA6. So the gap between $2,199 and $2,600 has to be buying something else.
It buys an inverter.
The Plus runs 6,000 W, surges to 9,000 W and has a 240 V outlet, the voltage a well pump, a dryer or a feed into the house panel asks for. The DELTA 4 (3800) runs 3,600 W and surges to 7,200 W, all of it from 120 V outletsA2.
It also buys a wider solar funnel.
The Plus takes 3,200 W of panels. The DELTA 4 (3800) takes 2,000 W across two inputs of 1,000 W eachA5. Below 2,000 W of panels, the two fill at the same pace, because the panels set it.
What the Numbers Reveal
Each conclusion stated first — the numbers behind it on one line, the full analysis below.
continuous output
In a house panel, 240 V circuits sit on double-pole breakers, the double-width ones: well pump, dryer, range, central air. Everything on a single-pole breaker is 120 V, and that side of the panel is where a fridge, a furnace blower and the router live. The DELTA 4 (3800)'s 3,600 W is built for that side.
SOLIX F3800 PLUS: 6,000 W, 9,000 W surge, a 240 V outletDELTA 4 (3800): 3,600 W, 7,200 W surge, 120 V outletsA2DELTA 4 (3800): four 20 A outlets and one 30 A twist-lockA3
Why it mattersLook at the breakers for the circuits you'd keep alive. If none of them is double-pole, the Plus's 240 V is paid for and never used.
rated cycles
Run either one as a daily solar battery and the Plus refills faster from a big array, but Anker rates it for half the cycles. By the ratings, the DELTA 4 (3800) keeps doing that job for 16.4 years and the Plus for 8.2. Below 2,000 W of panels the faster refill never happens, and the cycle rating is the only difference left.
Solar input: 3,200 W on the Plus, 2,000 W on the DELTA 4 (3800) across two inputsA5Cycle ratings: 6,000 on the DELTA 4 (3800), 3,000 on the PlusDaily use: 16.4 years against 8.2 years by those ratings
Why it mattersIf you're building a daily solar setup on 2,000 W of panels or less, the DELTA 4 (3800) is the better battery to wear out.
The catch is HID, the USB link a desktop uses to learn it's on battery and shut itself down. Without it, a long outage can end with the PC losing power mid-file if nobody is at the desk. A laptop on the 140 W USB-C port sidesteps that, because it carries its own battery.
DELTA 4 (3800): switchover no worse than 10 ms; EcoFlow's FAQ says it doesn't support HIDA8SOLIX F3800 PLUS: switchover no worse than 20 msRemote Workday: both finish it, with 140 W USB-C on the DELTA 4 (3800) against 100 W
Why it mattersWork on a laptop and the DELTA 4 (3800) is the better desk battery. Run a desktop on it and plan to shut down by hand.
The specific dimensions that decide these two units — everything else is a tie.
What the Specs Don't Tell You
Selected because: The Plus surges higher, and the EcoFlow switches over faster on paper.
rated cycles
For the biggest motors, the Plus has the higher ceiling. It surges to 9,000 W against 7,200 W, and a motor pulls hardest the instant it starts. A table saw on a cold morning is where you'd notice. A fridge or a furnace blower starts on either.
For a desk computer, the EcoFlow has the quicker rated switch. EcoFlow rates it no worse than 10 ms and Anker rates the Plus no worse than 20 ms, and both are ceilings rather than measurements. One reviewer running the Plus through a home panel saw the lights barely flickerB3.
Growth Path
Selected because: Both take extra batteries, and the Plus feeds its bank more solar.
solar input
Both grow into a home-sized bank, so growth is a draw. The DELTA 4 (3800) takes up to two extra batteries, DELTA Pro 3 or DELTA 3 Max Plus packs, and EcoFlow quotes 4 to 12 kWh in allA6. The Plus takes Anker's own expansion batteries.
The difference is how fast panels can refill that bank. The Plus's 3,200 W input gives a big bank more sun per hour than the EcoFlow's 2,000 W. Charge it from the grid or a generator and that edge disappears.
Portability & Form Factor
Selected because: 67.5 lb against 132.3 lb, for nearly the same battery.
weight
Only one of these goes camping. The DELTA 4 (3800) is 67.5 lb with a handle at each endA7, a careful one-person lift into a hatchback. The Plus is 132.3 lb and rolls rather than lifts.
The Plus's wheels want concrete. One reviewer found them fine on grass and stopped by small bumpsB8, and a roundup of buyer feedback flags portability and packagingB14. On a garage floor beside a transfer switch, none of that matters.
Your Life, Your Pick
Selected because: Every scenario lands within a couple of points, and the two travel rows go to the EcoFlow.
Our scenarios can't split these two on capacity. Every row lands within a couple of points, and the eight-hour blackout leaves about half of either battery behind: 1,554 Wh on the EcoFlow, 1,619 Wh on the Plus.
The two travel rows go to the EcoFlow on weight alone. Weekend Camping and the tailgate fit easily on either battery, and only one of the boxes fits in a car. Van Life Daily asks 4,685 Wh and neither reaches it alone, but both can add a battery to get there.
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 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 3800 Gen4
Strengths
- +Costs $401 less
- +Lighter by 64.8 lb
- +Rated for 6,000 charge cycles — much longer battery lifespan
Trade-offs
- –Weaker inverter (-2,400W) limits appliance compatibility.
Anker SOLIX F3800 PLUS
Strengths
- +Larger battery capacity
- +Higher AC output
- +Faster solar charging
Trade-offs
- –Significantly heavier (+64.8 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 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 with more than 1,000 Wh spare. The DELTA 4 (3800) takes it because it's the one you can lift into a car.
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
Either unit
Both get through the 1,645 Wh night and wake up about half full: 1,554 Wh left on the EcoFlow, 1,619 Wh on the Plus. Call it even, and decide on something else.
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 F3800 PLUS 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
DELTA 3800 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 3800 Gen4 by default — and it earns it, covering the 670Wh with 2,529Wh 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 reaches 4,685 Wh on its own battery, and they fall short by nearly the same amount. Both expand, so a van build starts with an extra battery either way.
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
Dead heat — both run this 205W load for roughly 15.6h. Pick on price, weight, or ports.
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 3800 Gen4
I'd buy the DELTA 4 (3800) unless your house has a 240 V load or more than 2,000 W of panels. It holds 3,763 Wh against 3,840 Wh, both take extra batteries, and both finish every scenario we run except Van Life Daily. For $401 less, it weighs 67.5 lb against 132.3 lb and EcoFlow rates it for 6,000 cycles to Anker's 3,000. The Plus answers with 6,000 W, a 240 V outlet, a 9,000 W surge and 3,200 W of solar input, which a well pump or a big roof array will use and a fridge-and-lights backup won't. The DELTA 4 (3800) ships in late November, 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.
$2,199.00 · 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 3800 Gen4 rates 4.1/5 (48th percentile of 22 Home Backup-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.
One Person or Two
The DELTA 4 (3800) is 67.5 lb, a one-person lift. The SOLIX F3800 PLUS is 132.3 lb, a two-person job, and rolls to wherever it will live. The batteries inside are nearly the same size.
The Plus Has the Higher Ceiling
The Plus surges to 9,000 W and the DELTA 4 (3800) to 7,200 W. The EcoFlow runs further below its own 3,600 W rating, but a big motor's startup spike is a fixed number of watts, and the Plus can absorb more of them.
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 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 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.
Battery Lifespan in Real Years
The DELTA 3800 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.
A Ceiling on One Side, Nothing on the Other
EcoFlow publishes a noise ceiling for the DELTA 4 (3800), the most it should make at a stated load rather than a quiet-mode best case. Anker publishes no figure for the SOLIX F3800 PLUS. That isn't evidence the Plus is louder, only that there's no number to hold it to.
Full record above — the Test Desk pick is the DELTA 3800 Gen4.
Check DELTA 3800 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 3800 Gen4 wins on both sticker price and long-term value. At $0.10/kWh over its lifetime, it's meaningfully cheaper to own. Clear value winner.
Delivers each lifetime kWh for $0.13 less — check the DELTA 3800 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 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 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
Both expand, but the SOLIX F3800 PLUS's higher solar ceiling (3,200W vs 2,000W) gives it the stronger off-grid growth path — more panels can feed a bigger bank as it grows.
What Owners Report
Patterns from published owner reports and long-term reviews — every claim cited to its source below.
EcoFlow DELTA 3800 Gen4
Nobody has a DELTA 4 (3800) at home yet. EcoFlow put it on sale in the US on November 4 and says it ships in late NovemberA10, so this page runs on EcoFlow's spec table and FAQ, which I went throughA0A1A2.
I'd want to try its wall charging on a real garage circuit. EcoFlow rates it at up to 1,800 W, which at 120 V is the full 15 A an ordinary circuit allowsA4. I'd run it on the same breaker as a chest freezer and see whether the breaker holds, or just turn the rate down in the app.
“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 F3800 PLUS
Runtime drops fast once real appliances are on the Plus. One reviewer ran a fridge and a freezer together and emptied it in a little over seven hoursB5. With lighter loads the same reviewer expects about 17 hoursB4, and calls charging an EV from it a gimmick, at about 5 miles of range from a full batteryB6.
On noise and setup, reviewers are kind. One found it surprisingly quiet even when pushed, though not as quiet as EcoFlow's DELTA Pro UltraB12, and another had it on the Anker app within minutesB13. Owner commentary on the Plus specifically is thinB0, and the one detailed owner complaint describes a noisy battery pack and support that went quietB1.
“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 3800 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 3,763 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]
- 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-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]
- 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]
- 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]
- 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]
- B4
“You would be able to keep a fridge or freezer running, charge a few laptops or phones, maybe charge up an e-Bike and the F3800 Plus base unit would last about 17 hours before needing a recharge.”
Digital Trends — "Anker Solix F3800 Plus review: this power station wins for versatility and value" · 2025-05 · [positive]
- B5
“With both the freezer and my fridge plugged in at the same time, I was about to get 7.34 hours before the unit was completely drained.”
Digital Trends — "Anker Solix F3800 Plus review: this power station wins for versatility and value" · 2025-05 · [mixed]
- B6
“With my Rivian R1S, I was able to get about 5 miles of charge out of the F3800 Plus – fully drained... Charging an EV with the Solix F3800 Plus is gimmicky in my opinion.”
Digital Trends — "Anker Solix F3800 Plus review: this power station wins for versatility and value" · 2025-05 · [mixed]
- 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]
- 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]
- B12
“It doesn't match the whisper-quiet performance of the EcoFlow Delta Pro Ultra, which remains one of the quietest power stations we've ever tested, but the F3800 Plus is still surprisingly quiet, even when you're really pushing it.”
TheSolarLab — "Anker SOLIX F3800 Plus Review: Big Power, Big Price?" · unknown · [positive]
- B13
“Setting it up was surprisingly easy... Within minutes, I could see everything on the Anker app—charging input, battery percentage, power usage by device.”
ProudHomemaker — "Is the Anker SOLIX F3800 Plus Worth It? Here's What You Need to Know" · 2025-05 · [positive]
- B14
“Overall, feedback indicates a mixed experience. Customers appreciate its robust performance but express concerns about portability and packaging.”
CleanEnergyBusinessCouncil.com — "Anker SOLIX F3800 Plus Review: Power Unleashed" (site's summary of user feedback) · 2025-08 · [mixed]
Research compiled November 4, 2026.
Who Should Buy Which
Buy the DELTA 3800 Gen4 if you…
- →Everything you'd back up runs on 120 V. 3,600 W covers a fridge, a furnace blower and the router together.
- →Your panels add up to 2,000 W or less. The DELTA 4 (3800) takes all of it across two inputs.
- →It will cycle every day. EcoFlow rates it for 6,000 cycles to the Plus's 3,000.
- →It might leave the house. 67.5 lb against 132.3 lb.
Buy the SOLIX F3800 PLUS if you…
- →Something runs on 240 V, like a deep well pump or an electric dryer.
- →You have more than 2,000 W of panels, or will. It takes 3,200 W, on MC4 plugs by one reviewer's accountB11.
- →Your biggest loads have motors. 9,000 W of surge against 7,200 W.
- →It will sit on a transfer switch in the garage and never move.
If neither fits
If the whole plan is a laptop and a phone through a workday, close this tab. The Remote Workday uses 28% of either battery. A small station with a good USB-C port does that day for a fraction of the money.
The Bottom Line
With 120 V loads and modest panels, buy the DELTA 4 (3800). Nearly the same battery, the same room to grow, about half the weight and twice the rated cycles, for less money.
With a 240 V load or a roof full of panels, buy the Plus. Its inverter and solar input are what the extra money pays for, and you'll use both.
Frequently Asked Questions
Answers drawn from the spec record and cited owner research.
Can both the DELTA 4 (3800) and the F3800 Plus add extra batteries?
Yes. The DELTA 4 (3800) takes up to two DELTA Pro 3 or DELTA 3 Max Plus extra batteries, and EcoFlow quotes 4 to 12 kWh in all. The SOLIX F3800 PLUS takes Anker's expansion batteries.
Is the SOLIX F3800 PLUS worth the extra money?
Only if you'll use what it adds: a 240 V outlet, 6,000 W of output, a 9,000 W surge and 3,200 W of solar input. The batteries are nearly the same size and both expand. If your appliances run on 120 V and your panels total 2,000 W or less, the DELTA 4 (3800) does the same job for less.
How much is the DELTA 4 (3800), and when does it ship?
EcoFlow lists it at $2,199 on its US store and says it ships in late November. The SOLIX F3800 PLUS usually sells for $2,600.
Can the DELTA 4 (3800) run a well pump?
A 120 V well pump, yes, as long as its startup surge stays within 7,200 W and its running draw within 3,600 W. A 240 V well pump, no, because the DELTA 4 (3800) has no 240 V outlet. The SOLIX F3800 PLUS does.
Which one is quieter?
Only EcoFlow publishes figures: 40 dB or less up to 1,800 W, and 50 dB or less at the full 3,600 W, for the DELTA 4 (3800). Anker publishes none for the SOLIX F3800 PLUS, though reviewers call it quiet under household loads.
Where to buy
EcoFlow DELTA 3800 Gen4Pick
$2,199.00
$2,199.00 · 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.