Head-to-head test
EcoFlow DELTA Pro 3 vs Anker SOLIX F3800 PLUS
The pricing flipped: the DELTA Pro 3 is now $100 cheaper than the SOLIX F3800 Plus, and it already cost less to own, weighed less, and switched over faster. The F3800 Plus still hits harder on raw output — but you now pay more for that headroom, so for most buyers the DP3 is the better whole-home flagship.
Written by Gunner GustafsonUpdated
Whole-Home Backup Tester, Station Arena Test Desk
EcoFlow
DELTA Pro 3
5,693Power Score · The AC & Fridge Zone
$2,399.00 list · direct from EcoFlow
Anker
SOLIX F3800 PLUS
6,265Power Score · The AC & Fridge Zone
$2,499.99 list · direct from Anker
Spec deltas
The pricing on these two flagships has crossed over: the DELTA Pro 3 is now $2,399, $100 less than the SOLIX F3800 Plus's $2,499. The F3800 Plus still out-guns it on paper — 6,000W of continuous output against 4,000W, a 9,000W surge against 6,000W, and 3,200W of solar input against 2,000W — but that power now comes at a premium, not a discount.
And the DELTA Pro 3 already led where the spec sheet doesn't shout: total cost of ownership. Its 4,000-cycle battery against the F3800 Plus's 3,000 spreads its price over more lifetime energy, landing at $0.15 per lifetime kWh against $0.22 — a gap that only widened now that the DP3 is also the cheaper unit up front. It's the lighter box too at 112.4 lbs to 132.3, and its UPS switches over in 10ms against 20.
The one spec Anker doesn't publish for the F3800 Plus is noise. EcoFlow lists 30dB for the DP3; Anker lists nothing. That's not proof the F3800 Plus is loud — it may well be fine — but on a purchase this size, one of these two units tells you exactly what you're getting and one doesn't.
What the Numbers Reveal
Each conclusion stated first — the numbers behind it on one line, the full analysis below.
continuous output
The F3800 Plus still delivers 2,000W more continuous power and a 3,000W bigger surge — real headroom for a compressor or well pump that draws 2-3x its rated wattage on startup — but it now costs $100 more than the DP3 rather than $300 less, so that output is a paid-for upgrade, not a freebie.
the DP3 now costs $2,399 to the F3800 Plus's $2,499the F3800 Plus outputs 6,000W continuous to the DP3's 4,000Wthe F3800 Plus surges to 9,000W to the DP3's 6,000W
Why it mattersBuyers running heavy 240V loads or a well pump can still choose the F3800 Plus for its surge, but they now pay a premium for it instead of saving.
cost / lifetime kWh
1,000 more rated cycles already spread the DP3's energy across more lifetime kWh; now that it's also $100 cheaper up front, it lands seven cents lower per kWh than the F3800 Plus ($0.15 vs $0.22) — a gap that keeps compounding on every recharge.
the DP3 costs $0.15 per lifetime kWh to the F3800 Plus's $0.22the DP3 is rated for 4,000 cycles to the F3800 Plus's 3,000the DP3 now costs $100 less upfront
Why it mattersOn total cost the DP3 no longer asks buyers to trade a higher sticker for lower lifetime cost — it wins both, so value-minded buyers should lean to it.
weight
EcoFlow will tell you the DP3 runs at 30dB, quiet-library territory, and ships 20 lbs lighter besides. Anker publishes the F3800 Plus's wattage to the watt but leaves noise blank — it may test just as quiet, but a buyer has to take that on faith rather than a spec.
the F3800 Plus does not publish a noise ratingthe DP3 lists 30dBthe F3800 Plus weighs 132.3 lbs to the DP3's 112.4 lbs
Why it mattersAnyone installing near a bedroom or small camper should get Anker's actual dB figure before buying, or default to the DP3's published number.
The specific dimensions that decide these two units — everything else is a tie.
Lifetime Value
Selected because: DP3 is now cheaper upfront and wins the long-run cost-per-kWh math too.
cost / lifetime kWh
The DP3 now wins the money on both ends. It's cheaper at checkout ($2,399 vs $2,499) and cheaper to own: its 4,000-cycle battery against the F3800 Plus's 3,000 spreads that price over more total energy delivered, landing at $0.15 per lifetime kWh versus $0.22.
The old carve-out — that within the 5-year warranty the F3800 Plus was cheaper per year — has flipped too: at the new prices it's $480 a warranty year on the DP3 against $500 on the F3800 Plus. So whether you replace the unit within warranty or run it for a decade, the DP3 is now the cheaper one to own; the F3800 Plus no longer has the value argument it used to lead with.
PowerScore Breakdown
Selected because: F3800 Plus posts a meaningfully higher power score on output, surge, and solar.
overall power score
This one still goes to the F3800 Plus: 6,170 to 5,501. It earns it honestly — 6,000W continuous against the DP3's 4,000W, a 9,000W surge against 6,000W, and 3,200W of solar input against 2,000W. Two thousand extra watts of continuous output is the difference between running a table saw and tripping a breaker.
Raw wattage isn't the whole story, though — and it's no longer the cheap story either. The DP3 answers with 256 more watt-hours of capacity, 1,000 more rated cycles, a lower cost per kWh over its life, and now a lower price, so the F3800 Plus wins the spec sheet while the DP3 wins the decade and the checkout total both.
What the Specs Don't Tell You
Selected because: Weight, UPS speed, and F3800 Plus's undisclosed noise are the real trade-offs.
rated cycles
The F3800 Plus is 20 lbs heavier at 132.3 lbs to the DP3's 112.4. Neither is a one-person lift, but only one of them is the heavier two-person lift. The DP3's UPS also switches over in 10ms against the F3800 Plus's 20ms — twice as fast, which matters if a networked device or a sump pump can't tolerate even a quarter-second gap.
The real asterisk is noise. EcoFlow lists 30dB for the DP3. Anker doesn't publish a number for the F3800 Plus at all — it'll tell you the wattage to the watt and the surge to the watt, but not the decibels. Worth a direct question to Anker before this goes anywhere near a bedroom or a small camper.
Growth Path
Selected because: Both expand; F3800 Plus's bigger solar ceiling is the stronger off-grid growth story.
solar input
Both units expand without replacing the base box, so growth isn't the differentiator — the on-ramp is. The F3800 Plus's 3,200W solar ceiling against the DP3's 2,000W means a bank you've expanded refills faster off-grid, and that gap widens the further you get from a wall outlet.
If the plan is more panels and faster off-grid turnaround, that solar headroom is real time saved. If it's just more capacity at the lowest cost per kWh, the DP3's cheaper lifetime math still wins — expansion favors the F3800 Plus only for buyers actually building out a solar array.
Strengths & trade-offs
EcoFlow DELTA Pro 3
Strengths
- +Costs $101 less
- +Lighter by 19.9 lb
- +Larger battery capacity
- +Rated for 4,000 charge cycles — much longer battery lifespan
Trade-offs
- –Weaker inverter (-2,000W) limits appliance compatibility.
- –Very heavy unit that may be difficult for one person to lift.
Anker SOLIX F3800 PLUS
Strengths
- +Higher AC output
- +Faster solar charging
Trade-offs
- –Significantly heavier (+19.9 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 Pro 3's 4,000, 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
Either unit
Both handle two nights comfortably. The SOLIX F3800 PLUS uses 64% and the DELTA Pro 3 uses 60%. With this little difference, pick based on weight and portability instead. The lighter unit wins for car camping.
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 survive the blackout with similar margin. Since the capacity difference doesn't matter here, focus on which unit has UPS mode — seamless switchover protects your router and PC from the split-second power gap.
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 are wildly overqualified for CPAP. You're using 10% or less. Save your money and buy whichever is cheaper; the extra capacity is completely wasted on a 40W overnight load. Put the savings toward a second battery for multi-night trips.
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 breaking a sweat. At these utilization levels, prioritize the unit with better USB-C output for direct laptop charging. It's more convenient than using the AC inverter 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, consider weight: the lighter unit is easier to load into a truck bed. Also check if either has Bluetooth speaker-level noise. Fan sound matters in social settings.
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 unit can fully handle this scenario (needs 4,685Wh). You'd need a higher-capacity station or to cut back on usage.
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 six 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 Pro 3 runs 17h vs 15.9h.
$2,399 list · direct from EcoFlow
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 0–232.1hComfort & Convenience
Makes off-grid life actually enjoyablescale 0–46.4hHigh-Draw Appliances
These reveal the real limitsscale 0–3.5h¹ 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
July 14, 2026
Verdict: the DELTA Pro 3
For most buyers, the EcoFlow DELTA Pro 3. The F3800 Plus used to win as the power-per-dollar pick — cheaper AND bigger on every wattage spec — but that case has inverted: the DP3 is now $100 cheaper ($2,399 vs $2,499) while already beating the F3800 Plus on capacity (4,096Wh vs 3,840), cycle life (4,000 vs 3,000), weight (112.4 vs 132.3 lbs), UPS switchover (10ms vs 20ms), and a published 30dB noise figure where Anker discloses none. At the new prices the DP3 also wins capacity-per-dollar (1.71 vs 1.54 Wh/$) and widens its lifetime-cost lead ($0.15 vs $0.22 per lifetime kWh). The F3800 Plus keeps one real advantage — raw output headroom: 6,000W continuous, a 9,000W surge, and a 3,200W solar ceiling against the DP3's 4,000W / 6,000W / 2,000W. If you specifically need that bigger inverter or solar input and will pay more for it, the F3800 Plus is a defensible pick — but most buyers get more unit for less money in the DP3.
Editor-assigned confidence, based on cited owner research and spec analysis.
List prices as of July 14, 2026. The links below open EcoFlow's and Anker's current prices.
$2,399.00 list · direct from EcoFlow
or check the SOLIX F3800 PLUS price$2,499.99 list
Written by Gunner Gustafson, Whole-Home Backup Tester · Station Arena Test Desk · Updated July 14, 2026
Measured Data
Benchmark scores and the full spec record, side by side.
Benchmark scores
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 Pro 3 rates 4.1/5 (47th percentile of 16 Home Backup-class units), and SOLIX F3800 PLUS rates 4.7/5 (80th percentile of 16 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.
Both need two sets of hands
112.4 lbs against 132.3 lbs — neither of these is a one-person carry, but the F3800 Plus adds nearly 20 lbs on top of an already heavy unit. Budget for a dolly or a doorway with no steps either way.
UPS Speed: line-interactive (<10ms) vs standby (<20ms)
The DELTA Pro 3 switches to battery in 10ms (line-interactive (<10ms)), while the SOLIX F3800 PLUS takes 20ms (standby (<20ms)). Safe for desktop PCs, routers, and CPAP machines. NAS drives are protected. This matters if you're using it as a home UPS for always-on equipment.
Battery Lifespan in Real Years
The DELTA Pro 3 is rated for 4,000 cycles vs 3,000. In real life: at daily use, that's 11 vs 8.2 years. At weekend use (twice a week), it's 38 vs 29 years. After hitting the cycle limit, the battery doesn't die. It drops to ~80% original capacity, which is still very usable.
One spec, zero decibels
EcoFlow tells you the DELTA Pro 3 runs 30dB — hushed, library-quiet. Anker doesn't publish a number for the F3800 Plus at all. That's not proof it's loud; Anker's other flagships test quiet in practice too. But on a purchase this size, a published number beats a promise, and only one of these two gave you one.
Full record above — the Test Desk pick is the DELTA Pro 3.
Check DELTA Pro 3 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 Pro 3 wins on both sticker price and long-term value. At $0.15/kWh over its lifetime, it's meaningfully cheaper to own. Clear value winner.
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. Supports up to 180kWh modular expansion with DELTA Pro Ultra X.
Worth knowing
The Oct 2025 DELTA Max 2000 recall (overheating/fire risk, 6 incidents) is worth noting. Also 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 Pro 3
EXPANDABLESupports EcoFlow expansion batteries, so you can add capacity later without replacing the base unit — useful if your needs may climb past 4,096Wh.
Accepts up to 2,000W of solar. Enough for a serious multi-panel array.
Generous port selection supports complex multi-device setups.
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 Pro 3
The field data's standout for the DP3 is charging speed: 0-80% in about 50 minutes on up to 7,000W of input, a full charge in roughly 90 minutes, and up to 2,600W available from solarA3. That's worth noting against a Plus whose bigger 3,200W solar spec looks stronger on paper but meets an EcoFlow unit that's already topped off before lunch on wall or generator power.
The rest of its reputation holds up in the field, too — a 4,096Wh LFP pack with dual-voltage 120V/240V output, expandable to 48kWhA1, on a 4,000-cycle battery carrying an IP65 ratingA2. Reviewers call it a gold-standard whole-home unit for 2026A4, and at 112.4 lbs it's the lighter of these two flagships to actually move into place.
“4,096Wh LFP battery with 4,000W continuous AC output (6,000W with X-Boost) and dual-voltage 120V/240V, expandable to 48kWh.”
Sources
ecoflow.com · amazon.com · homedepot.com · thepowerpick.com · outboundpower.com · techradar.com · thesolarlab.com
Anker SOLIX F3800 PLUS
Support experiences on the F3800 Plus split hard: one owner describes being ghosted by Anker after a $20,000 Solix purchase over a battery-pack noise complaintB1, while another in that same forum thread got a fast, no-hassle advanced replacementB2. Day to day, the fans stay quiet — barely audible under normal household loads, only kicking up past 4,000W or max-speed chargingB10.
Anker fixed the Plus's solar input specifically: it now takes a genuine 3,200W and works with standard MC4 panels, unlike the input restrictions owners flagged on the earlier F3800B11. Real-world runtime drops fast under heavy load, though — a fridge and freezer running together drain the base unit in about 7.3 hoursB5 — and the rear wheels handle grass fine but stall on rougher terrainB8.
“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
- Huge 4,096Wh LFP capacity, 4,000W dual-voltage output, very fast charging, and big expandability are the standout praise; it's heavy at ~113 lbs. [DELTA Pro 3 · 2 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
“4,096Wh LFP battery with 4,000W continuous AC output (6,000W with X-Boost) and dual-voltage 120V/240V, expandable to 48kWh.”
ecoflow.com / amazon.com — DELTA Pro 3 · 2026 · [positive]
- A2
“LiFePO4 rated for 4,000+ cycles to 80% (10+ years), with an IP65 battery rating.”
homedepot.com / thepowerpick.com — DELTA Pro 3 review · 2026 · [positive]
- A3
“Multi-charge technology reaches 0-80% in about 50 minutes using up to 7,000W input, with a full charge in roughly 90 minutes; up to 2,600W solar.”
outboundpower.com / techradar.com — DELTA Pro 3 review · 2026 · [positive]
- A4
“Weighs about 113.5 lbs; reviewers call it a gold-standard whole-home backup unit for 2026.”
techradar.com / thesolarlab.com — DELTA Pro 3 review · 2026 · [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]
- 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]
- 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]
Research compiled July 14, 2026.
Who Should Buy Which
Buy the DELTA Pro 3 if you…
- →You want more unit for less money — the DP3 is now $100 cheaper ($2,399 vs $2,499) while holding more capacity, more cycles, and less weight.
- →You want the cheaper unit to own over its life — $0.15 per lifetime kWh against the F3800 Plus's $0.22 — and now the cheaper one at checkout too.
- →You're installing near a bedroom or small space and want a published 30dB figure to plan around, or need the faster 10ms UPS switchover for a sump pump or router.
Buy the SOLIX F3800 PLUS if you…
- →You specifically need the most continuous power — 6,000W and a 9,000W surge — and will pay $100 more than the DP3 for it.
- →You're building out a solar array and want the higher 3,200W input ceiling, now compatible with standard MC4 panels on the Plus.
- →You can live with an unpublished noise spec and a 132.3-lb unit in exchange for the bigger inverter.
If neither fits
If a full day of heavy use — a fridge, a freezer, and charging gear running at once — is the actual job, neither base unit gets there alone; that's Van Life Daily territory, where both come up short of the roughly 4,685Wh needed. Both brands solve it with expansion batteries, not a bigger single box, so plan the add-on battery into the budget from day one if that's your use case.
The Bottom Line
For most buyers, the EcoFlow DELTA Pro 3 is now the pick: $100 cheaper than the F3800 Plus while carrying more capacity, more cycles, less weight, a faster UPS, a published noise number, and a lower cost per lifetime kWh. The value case that used to belong to the Anker has crossed over to EcoFlow.
The SOLIX F3800 Plus is the better buy for a narrower, real case: anyone who specifically needs its bigger inverter — 6,000W continuous, a 9,000W surge — or its higher 3,200W solar ceiling, and is willing to pay $100 more and carry 20 extra pounds for that headroom. Know which buyer you are before you check out.
Frequently Asked Questions
Answers drawn from the spec record and cited owner research.
EcoFlow DELTA Pro 3 vs Anker SOLIX F3800 Plus — which should I buy?
The DELTA Pro 3 for most buyers. It's now $100 cheaper ($2,399 vs the F3800 Plus's $2,499) while holding more capacity (4,096Wh vs 3,840), more cycles (4,000 vs 3,000), less weight (112.4 lbs), a faster 10ms UPS, and a published 30dB noise figure Anker doesn't match. Choose the F3800 Plus if you specifically need its bigger inverter — 6,000W continuous and a 9,000W surge — or its higher 3,200W solar ceiling, and will pay the $100 premium for it.
Which is cheaper to own long-term?
The DELTA Pro 3, and now on both counts. Its 4,000-cycle battery against the F3800 Plus's 3,000 spreads its price over more total lifetime energy, landing at $0.15 per lifetime kWh against $0.22 — and at the new prices it's also cheaper within the shared 5-year warranty ($480 per year vs $500). The value edge the F3800 Plus used to hold inside the warranty window has flipped to the DP3.
Why doesn't Anker list a noise rating for the F3800 Plus?
Anker simply hasn't published one, while EcoFlow lists 30dB for the DELTA Pro 3. It doesn't mean the F3800 Plus is loud — field reports describe the fans as barely audible under normal household loads, kicking up only past 4,000W or during max-speed charging. But without a published figure, buyers installing near living space are working from reviews rather than a spec.
Which charges faster from solar?
The F3800 Plus takes a higher 3,200W of solar input against the DP3's 2,000W, and Anker fixed earlier input restrictions so it now works with standard MC4 panels. The DP3 counters with fast wall and generator charging — 0-80% in about 50 minutes on up to 7,000W of input — so the better choice depends on whether your primary charge source is solar or the grid.
Where to buy
EcoFlow DELTA Pro 3Pick
$2,399.00
$2,399.00 list · direct from EcoFlow
Anker SOLIX F3800 PLUS
$2,499.99
$2,499.99 list · direct from Anker
Prices may vary by retailer and are subject to change.