Head-to-head test
EcoFlow DELTA Pro 3 vs Anker SOLIX F3800 PLUS
The DELTA Pro 3 is the bigger tank and the F3800 PLUS the bigger punch. None of the loads this page models touches the punch.
Full profiles: EcoFlow DELTA Pro 3 β Β· Anker SOLIX F3800 PLUS β
Looking for a different matchup? EcoFlow DELTA Pro 3 vs Anker SOLIX F3800
Written by Gunner GustafsonUpdated
Whole-Home Backup Tester, Station Arena Test Desk
Spec deltas
My desktop and my Starlink both hate a flicker. So the first number I look for on a home battery is the switchover rating, the gap in milliseconds between the grid dropping and the battery taking over. The DELTA Pro 3 is rated no worse than 10ms and the F3800 PLUS no worse than 20ms.
That row points the same way as the bigger ones. The EcoFlow holds more, carries 1,000 more rated cycles and weighs 18.8 lb less. Over the battery's rated life that comes to 42% more energy from one purchase, for $199 more up front.
The Anker's answer is muscle: 6,000W continuous against 4,000W. The heaviest load on this page peaks at 400W. If you own something that draws past the EcoFlow's rating, or a solar array bigger than it can take, the Anker becomes the better buy.
What the Numbers Reveal
Each conclusion stated first β the numbers behind it on one line, the full analysis below.
rated cycles
That is how the pricier box becomes the cheaper one to own, $0.17 per lifetime kWh against $0.23. It only pays out if you cycle it. Run twice a week, both ratings stretch past 28 years and the gap stops mattering.
DELTA Pro 3: 4,096Wh, rated 4,000 cycles = 16,384 kWh lifetime throughputSOLIX F3800 PLUS: 3,840Wh, rated 3,000 cycles = 11,520 kWh lifetime throughputRated years at daily cycling: 11 vs 8.2; at twice-weekly use: 38.5 vs 28.8
Why it mattersDaily cyclers banking solar or shifting off-peak power should pay the premium. A few-outages-a-year buyer should decide on switchover, weight and capacity per charge.
continuous output
For a fridge, a furnace fan, the router and the lights, the extra output does nothing. For an appliance that pulls past 4,000W continuously, it decides the purchase.
SOLIX F3800 PLUS: 6,000W continuousDELTA Pro 3: 4,000W continuousHighest peak across the six modeled loads: 400W, and both units start and sustain every one
Why it mattersIf you can name that appliance, buy the Anker. If you can't, its headroom is no reason to.
The specific dimensions that decide these two units β everything else is a tie.
Lifetime Value
Selected because: The EcoFlow is the pricier box to buy and the cheaper one to own per kilowatt-hour.
cost / lifetime kWh
The lifetime line reads $0.17 a kilowatt-hour for the EcoFlow and $0.23 for the Anker. Per watt-hour of nameplate the two cost about the same, so the premium mostly buys the extra 256Wh.
Run it daily for solar and the rated years are 11 against 8.2. For a handful of outages a year, neither rating is close to being reached. That buyer should choose on capacity per charge, weight and switchover, and those still lean EcoFlow.
Your Life, Your Pick
Selected because: No modeled load separates these two.
Six load profiles, and the two units part ways on none of them. Camping and the tailgate go to neither, because boxes this heavy don't travel. The eight-hour blackout, the heaviest household load, leaves the EcoFlow 1,837Wh in reserve and the Anker 1,619Wh.
Van Life Daily beats both on capacity. When every row ties, lifetime and weight get the deciding vote. I'd buy the EcoFlow here.
Growth Path
Selected because: Both take expansion batteries, so solar input is the growth that separates them.
solar input
Both take their maker's expansion batteries. The difference worth pricing is solar. The Anker accepts 3,200W and the EcoFlow 2,600W, which takes a permanent array to reach.
Above 2,600W, the Anker refills in about 1.2 hours of full rated input against roughly 1.6, and the EcoFlow leaves panel output unused. That's the Anker's strongest card. A few folding panels will never find the difference.
What the Specs Don't Tell You
Selected because: Weight, switchover rating and one unpublished noise figure are the small print.
rated cycles
At 113.5 and 132.3 lb, both of these move on wheels, with two people, roughly once. The EcoFlow's 18.8 lb advantage decides which one you resent less at the bottom of the basement stairs.
The switchover card matters if a desktop PC shares the backed-up circuit. Both figures are manufacturer ratings, and I'd want to watch the handover on a scope before trusting either with unsaved work. On noise, EcoFlow prints a 30dB figure and Anker prints none. That limits what you can check before you buy, and says nothing about what you'd hear.
PowerScore Breakdown
Selected because: The Anker scores higher, and a verdict going the other way owes you the reason.
overall power score
Our own composite puts the Anker ahead, and most of that lead comes from its continuous output. So the score disagrees with the verdict.
Across these six loads the Anker's extra output buys nothing, while the EcoFlow's extra capacity and cycles count on every charge. If you'll genuinely run past 4,000W, trust the score.
Strengths & trade-offs
EcoFlow DELTA Pro 3
Strengths
- +Lighter by 18.8 lb
- +Larger battery capacity
- +Rated for 4,000 charge cycles β much longer battery lifespan
Trade-offs
- βWeaker inverter (-2,000W) limits appliance compatibility.
- βVery heavy unit that may be difficult for one person to lift.
Anker SOLIX F3800 PLUS
Strengths
- +Costs $199 less
- +Higher AC output
- +Faster solar charging
Trade-offs
- βSignificantly heavier (+18.8 lbs), making it harder to move.
- βVery heavy unit that may be difficult for one person to lift.
- βShorter-lived battery β 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 Β· 2 nights Β· needs 2,100Wh
Weekend Camping
Two nights off-grid with essential comfort
Neither unit
Neither one is going camping. The 2,100Wh weekend is 60% of the EcoFlow's usable charge and 64% of the Anker's. Weight is the problem.
Battery budget usedlower = more headroom
LOADΒ Β Phone Charger 15WΓ6h Β· LED Lights 40WΓ8h Β· Box Fan 75WΓ14h Β· CPAP Machine 40WΓ16h
SCN-02 Β· 8 hours Β· needs 1,645Wh
8-Hour Blackout
Keep the essentials running through a night without power
Either unit
Both ride out the night with about half the battery left: 1,837Wh in reserve on the EcoFlow, 1,619Wh on the Anker. If the circuit includes a desktop PC, the switchover rating is the tiebreak.
Battery budget usedlower = more headroom
LOADΒ Β Fridge 150WΓ8h Β· Router + Modem 20WΓ8h Β· LED Lights (4 bulbs) 40WΓ6h Β· Phone Charger 15WΓ3h
SCN-03 Β· 8 hours Β· needs 320Wh
CPAP Overnight
Sleep therapy without interruption β the #1 medical use case
Either unit
A CPAP night uses 9% of the EcoFlow and 10% of the Anker. Only EcoFlow publishes a noise figure. That doesn't make the Anker louder. It means you can't check before you buy.
Battery budget usedlower = more headroom
LOADΒ Β CPAP Machine 40WΓ8h
SCN-04 Β· 8 hours Β· needs 910Wh
Remote Workday
Full work day off-grid without power anxiety
Either unit
Both power your workstation all day without strain, and their USB-C output is a wash β pick on weight, ports, or price.
Battery budget usedlower = more headroom
LOADΒ Β Laptop 60WΓ8h Β· External Monitor 30WΓ8h Β· Router + Modem 20WΓ8h Β· Phone Charger 15WΓ2h
SCN-05 Β· 4 hours Β· needs 670Wh
Tailgate Party
Game day power for the crew
Neither unit
The 670Wh is under a quarter of either battery. Hauling one of these across a parking lot is what rules them out.
Battery budget usedlower = more headroom
LOADΒ Β Blender 400WΓ0.5h Β· LED TV (55") 80WΓ4h Β· Bluetooth Speaker 15WΓ4h Β· Phone Charger (Γ3) 45WΓ2h
SCN-06 Β· 24 hours Β· needs 4,685Wh
Van Life Daily
A full day of mobile living β the ultimate endurance test
Neither unit
Neither covers a 4,685Wh van day. The EcoFlow comes up 1,203Wh short and the Anker 1,421Wh short. Both take expansion batteries, so plan around it with added capacity or daily solar.
Battery budget usedlower = more headroom
LOADΒ Β Mini-Fridge 150WΓ24h Β· Laptop 60WΓ4h Β· Phone Charger 15WΓ3h Β· LED Lights 40WΓ5h Β· Fan 75WΓ8h
The Load Test
RUNTIME = (Wh Γ 0.85) Γ· LOAD
None of the scenarios above exactly yours? Build it. Toggle what you'd plug in; both units are tested against the combined draw.
Essentials
Comfort & Convenience
High-Draw Appliances
Test duration
8h
Continuous draw
205W
Projected runtime
For this load: DELTA Pro 3 runs 17h vs 15.9h.
$2,799 list Β· direct from EcoFlow
Planning for more than this? Describe your whole setup and get it sizedΒ β
Modeled from the spec record β same math as the tables below. Methodology
Runtime by appliance
Real-world runtime estimates for common appliances, modeled at 85% inverter efficiency.ΒΉ
Essentials
The basics you need runningscale 0β232.1hComfort & Convenience
Makes off-grid life actually enjoyablescale 0β46.4hHigh-Draw Appliances
These reveal the real limitsscale 0β3.5hΒΉ Runtime = (capacity Γ 0.85) Γ· appliance watts. Within each group, all bars share one time scale (the group's longest runtime), so lengths are comparable across appliances; identical runtimes collapse into a single blue/orange bar. Actual runtime varies with battery age, temperature, and simultaneous loads β see methodology.
Conclusion
October 25, 2026
Verdict: the EcoFlow DELTA Pro 3
Take the DELTA Pro 3 and pay the $199 premium knowingly. It holds 256Wh more, is rated for 1,000 more cycles, weighs less and has the tighter switchover rating. The cheaper Anker offers ceiling instead: 2,000W more continuous output and 600W more solar input. None of the six loads modeled here gets near the EcoFlow's own 4,000W. Two buyers should flip this: anyone with an appliance that draws past 4,000W continuously, and anyone building a solar array bigger than 2,600W.
Editor-assigned confidence, based on cited owner research and spec analysis.
List prices as of October 25, 2026. The links below open EcoFlow's and Anker's current prices.
$2,799.00 Β· direct from EcoFlow
Last checked 28 days ago. Prices move β check before you buy.
or check the SOLIX F3800 PLUS price$2,599.99 list
Written by Gunner Gustafson, Whole-Home Backup Tester Β· Station Arena Test Desk Β· Updated October 25, 2026
Black Friday Β· 26 days out
Prices to beat:DELTA Pro 3 $2,399SOLIX F3800 PLUS $2,300
The lowest we have recorded for each. A Black Friday price above it is a sale that unit has already had.
Measured Data
Benchmark scores and the full spec record, side by side.
Benchmark scores
Full specifications
α΅ Derived: price Γ· rated capacity. See the data behind our comparisons β
Comparison ToolAdd more power stations, side by sideOpen Tool βHow these numbers are produced
Numeric verification
Every figure on this page traces to our spec database or arithmetic on it β no estimated numbers.
Owner claims
Statements about owner experience are cited to published reviews β see Sources & Research Notes below.
Runtime model
Runtime = (rated capacity Γ 0.85 inverter efficiency) Γ· device wattage. Solar recharge estimates assume panels deliver 70% of rated output. Cold weather, battery age, and stacked loads reduce real-world results.
Power Score
Computed from 14 published spec dimensions, weighted per use-case bench. Higher is better; a unit must meet a bench's minimum threshold to be rated.
See the full weight table and data sourcing on our methodology page βClass ranking (the star rating)
Each unit's star score is a category ranking, not customer reviews β no buyer opinions feed it. We score every station on size-independent quality (value, output, portability, endurance, ports, warranty, and more), then percentile-rank it against the other units in its capacity class, so a class-leading compact unit and a class-leading whole-home unit can both earn 5β . Here, DELTA Pro 3 rates 3.9/5 (37th percentile of 20 Home Backup-class units), and SOLIX F3800 PLUS rates 4.4/5 (63rd percentile of 20 Home Backup-class units).
How the class ranking is computed βTest Notes & Caveats
Hidden gotchas and advantages we spotted that you won't find on the product page.
Wheels, and a friend
The DELTA Pro 3 is 113.5 lb and the SOLIX F3800 PLUS 132.3 lb. The plan is the same for both: two people, the wheels doing the work, one trip to wherever it will live.
10ms vs 20ms: one circuit cares
The DELTA Pro 3 is rated no worse than 10ms and the SOLIX F3800 PLUS no worse than 20ms. Routers, lights and fridges won't notice either. A desktop PC with a fussy power supply might notice the second.
Warranty: No Difference
Both units carry the same 5-year warranty, so coverage isn't a tiebreaker here.
Daily users cash this in
4,000 rated cycles against 3,000 works out to 11 years against 8.2 of daily use. At twice-weekly use it's 38.5 years against 28.8. Reaching the rating leaves either pack at about 80% of its capacity, still working.
One number on the table
EcoFlow publishes 30dB for the DELTA Pro 3. Anker publishes nothing for the SOLIX F3800 PLUS. If the unit is going near a bed, look for hands-on reports of the Anker first.
Full record above β the Test Desk pick is the DELTA Pro 3.
Check DELTA Pro 3 price βor check the SOLIX F3800 PLUS priceOwnership Analysis
What happens after you buy β true cost of ownership, brand trust, and growth potential.
Lifetime value
Service lifeyears at one full cycle per day
Lifetime energy delivered
Cost per delivered kWh
β warranty ends Β· Reaching the cycle rating means ~80% capacity remains β degraded, not dead.
Analyst note
The SOLIX F3800 PLUS is cheaper to buy, but the DELTA Pro 3 is cheaper to own. At $0.17/kWh over its lifetime vs $0.23/kWh, the DELTA Pro 3's higher cycle life and capacity make each dollar go further over the years.
Brand trust
EcoFlow
Ecosystem
Largest in portable power β 12-15 models across DELTA Pro, DELTA 3, and RIVER 3 series, plus solar panels and smart home panels
Support
US phone, email and chat, with experiences that split hard: hassle-free prepaid-label replacements for some, long waits and refurbished units for others. Costco or Amazon adds a second return path.
Community
Largest community in the space β Reddit r/Ecoflow_community (~31K members), multiple Facebook groups, and an official community forum
App experience
Rated 4.6/5 iOS (~8,400 ratings) Β· 4.2/5 Android (~17,000 ratings)
Unique strength
Fastest-charging technology (X-Stream), deepest product ecosystem, and most active innovation cadence. At the top of the range sit two whole-home paths: the TITAN line, one 5 kWh unit that grows to 30 kWh, and the DELTA Pro Ultra platform, which stacks batteries and inverters further β flagship paths, not line-wide features.
Worth knowing
EcoFlow tested subscription paywalls on app features in early 2025 and paused after community backlash. It offers no parts or service once the warranty ends.
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, with a long reputation for no-hassle replacements. Recent reports describe AI-driven agents giving generic answers. On a 132.3 lb station a return means hazmat freight.
Community
Moderate β active Reddit (r/Anker, r/AnkerSOLIXCommunity) and growing. Benefits from Anker's massive consumer electronics brand awareness.
App experience
Rated 4.5/5 iOS (~1,100 ratings) Β· 4.3/5 Android
Unique strength
Parent brand trust from Anker's consumer electronics dominance. InfiniPower technology for long cycle life. Strong $/Wh value in the mid-size and larger units β the S2000, F2600 and C1000 are among the better buys per watt-hour in the catalog.
Worth knowing
Support quality appears to be sliding. Firmware updates have removed features without warning, and the expansion range is smaller than EcoFlow's.
Analyst note
Neither service story is clean, and neither box ships back casually. Buy either from a retailer with its own returns policy.
Growth path
DELTA Pro 3
EXPANDABLESupports EcoFlow expansion batteries, so you can add capacity later without replacing the base unit β useful if your needs may climb past 4,096Wh.
Accepts up to 2,600W 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 β 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 β see methodology
Analyst note
Both expand, so neither locks you out of growth β decide on capacity, price, and the rest, not the expansion checkbox.
What Owners Report
Patterns from published owner reports and long-term reviews β every claim cited to its source below.
EcoFlow DELTA Pro 3
The DELTA Pro 3's file is thin. Our research draws on review sites and retailer reviewsA0, and none of it follows an owner through a few winters.
What exists agrees with the spec sheet. Reviewers put the LFP pack, a long-lived iron-phosphate chemistry, at 4,000-plus cycles to 80% with an IP65 battery ratingA2, report 0-80% in about 50 minutes on multi-charge inputA3, and call it a gold-standard whole-home backupA4. None of it has watched the cycle rating play out, and the verdict leans on that rating.
β4,096Wh LFP battery with 4,000W continuous AC output (6,000W with X-Boost) and dual-voltage 120V/240V, expandable to 48kWh.β
Sources
ecoflow.com Β· amazon.com Β· homedepot.com Β· thepowerpick.com Β· outboundpower.com Β· techradar.com Β· thesolarlab.com
Anker SOLIX F3800 PLUS
The Anker's file is deeper, mostly reviewers who lived with the unit for weeks or months, with almost no grassroots owner threads on the Plus itselfB0. One review estimates about 17 hours of light household dutyB4, and a fridge and a freezer together drained the base unit in a little over sevenB5. Reviewers put the fans at barely audible under household loads and loud only past 4,000W or at max-speed chargingB10B12.
Support is where the reports split. One owner describes a battery pack making alarming noise and more than five unanswered emails to AnkerB1. A reply in the same thread describes responsive service and an advance replacementB2, though our research couldn't confirm that reply is about the Plus, so take it as character only. Early complaints about standby drain appear to have drawn a firmware update said to cut idle use by about halfB9, with no second source behind it. One reviewer found the rear wheels fine on grass and stopped cold by small bumpsB8.
βI've called them and submitted tickets via their portal, always very responsive. They've even done advanced replacement for me.β
Sources
campingsolar.us Β· 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 Β· 2 entries]
- Owner support experiences with Anker/Solix diverge sharply β some report being ghosted after repeated contact attempts over a hardware fault, while others describe fast, responsive advanced-replacement service. [SOLIX F3800 PLUS Β· 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 Β· 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 Β· 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 Β· 2 entries]
- A2
βLiFePO4 rated for 4,000+ cycles to 80% (10+ years), with an IP65 battery rating.β
homedepot.com / thepowerpick.com β DELTA Pro 3 review Β· 2026 Β· [positive]
- A3
βMulti-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.β
outboundpower.com / techradar.com β DELTA Pro 3 review Β· 2026 Β· [positive]
- A4
βWeighs about 113.5 lbs; reviewers call it a gold-standard whole-home backup unit for 2026.β
techradar.com / thesolarlab.com β DELTA Pro 3 review Β· 2026 Β· [positive]
- B1
βI 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.β
DIY Solar Forum β "Big issue with Anker Solix F3800 plus battery pack (Large Anker Solix setup)" Β· 2025-08 Β· [negative]
- B2
βI've called them and submitted tickets via their portal, always very responsive. They've even done advanced replacement for me.β
DIY Solar Forum β "Big issue with Anker Solix F3800 plus battery pack (Large Anker Solix setup)" (reply from another Solix owner) Β· 2025-08 Β· [positive]
- B4
βYou 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.β
Digital Trends β "Anker Solix F3800 Plus review: this power station wins for versatility and value" Β· 2025-05 Β· [positive]
- B5
βWith 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.β
Digital Trends β "Anker Solix F3800 Plus review: this power station wins for versatility and value" Β· 2025-05 Β· [mixed]
- B8
βThe 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.β
AppleInsider β "Anker Solix F3800 Plus portable power station review: investment in reliable home power" Β· 2025-08 Β· [mixed]
- B9
βEarly reviews focused heavily on the standby drain of the Anker SOLIX F3800 Plus. Anker later released a firmware update that said it can cut idle use by about 50%.β
VoltNest β "Anker SOLIX F3800 Plus Review: My Honest Test Results" Β· 2026-04 Β· [mixed]
- B10
βUnder 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.β
CampingSolar.us β "Anker SOLIX F3800 Plus Review: The Ultimate 240V Home & RV Power" Β· 2026-02 Β· [positive]
- B11
βAnker 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.β
TheSolarLab β "Anker SOLIX F3800 Plus Review: Big Power, Big Price?" Β· unknown Β· [positive]
- B12
βIt 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.β
TheSolarLab β "Anker SOLIX F3800 Plus Review: Big Power, Big Price?" Β· unknown Β· [positive]
Research compiled October 25, 2026.
What Owners Actually Report
Drawn from 70 comments on independent review channels β not from retailer reviews, which skew to the first week of ownership. Each line is our summary of one commenter's claim, linked to the original. We record what they said, including where it contradicts the spec sheet.
EcoFlow DELTA Pro 3
74 claims from 50 comments Β· 50 from owners Β· 22 with figures
- Charging
- 8 Β· 30% negative
- Runtime
- 7 Β· 0% negative
- Price & value
- 11 Β· 3% negative
- Expandability
- 7 Β· 97% negative
- Warranty & support
- 8 Β· 69% negative
What owners complain about
His DP3 can only charge from an external 120V source while outputting 240V.
Chargingowner7 agreedsource β
At almost 120 lb he would not call the DP3 portable.
Size & weightmeasuredowner3 agreedsource β
Regrets buying the DP3 over the F3800 because it lacks 240V passthrough.
Expandabilityowner4 agreedsource β
What owners praise
Recharges in about 70 minutes at 3400W from a 240V generator inlet.
Chargingmeasuredowner57 agreedsource β
Ran lights, fans, modem, fridge and a 1300W air conditioner through a 5-day hurricane outage.
Runtimemeasuredowner30 agreedsource β
Costco sells a DELTA Pro 3 twin pack at $4,999, dropping to $4,499 on sale.
Price & valuemeasuredowner6 agreedsource β
Anker SOLIX F3800 PLUS
32 claims from 20 comments Β· 18 from owners Β· 4 with figures
- Solar input
- 4 Β· 0% negative
- Price & value
- 3 Β· 44% negative
- Expandability
- 5 Β· 77% negative
- Charging
- 4 Β· 15% negative
- Inverter & surge
- 3 Β· 88% negative
What owners complain about
F3800 Plus shuts down above 20A charging from the battery expansion port; 16A is stable.
Expandabilitymeasuredowner1 agreedsource β
Could not start two 240V hoist pumps or a well pump; motors shudder and the unit shuts off.
Inverter & surgeowner4 agreedsource β
Returned within 48 hours; would only have kept it at half the price.
Price & valueowner4 agreedsource β
What owners praise
Anker tech support was friendly, a native English speaker, and taught him things he didn't know.
Warranty & supportowner13 agreedsource β
Generator recharged it from 15% to full in under an hour while powering the house.
Chargingmeasuredowner4 agreedsource β
Got an F3800 Plus with an expansion battery and home backup kit for $4,200.
Price & valuemeasuredowner3 agreedsource β
Claims are weighted by how specific they are, whether the commenter owns the unit, and how many readers agreed. Comments that mention a product under a rival's review count for more, because the commenter had no reason to be there. This is what buyers report, not our test results β for measurements we ran ourselves, see the methodology.
Who Should Buy Which
Buy the DELTA Pro 3 if youβ¦
- βYou'll run it every day, banking solar or shifting off-peak power. A rated 11 years of daily cycling against 8.2 is what the premium buys.
- βA desktop PC shares the backed-up circuit. The 10ms switchover rating is the tighter of the two.
- βYour loads are household-sized: fridge, furnace fan, router, lights. 256Wh more per charge does more for you than 2,000W of output you'll never touch.
Buy the SOLIX F3800 PLUS if youβ¦
- βYou can name a load that genuinely draws past 4,000W continuously. The Anker's 6,000W rating exists for that.
- βYou're building a permanent array past 2,600W of panels. The Anker takes 3,200W, which one reviewer confirms works with standard MC4 connectorsB11. With the panels wired straight to the unit, that refill speed counts most in a multi-day outage.
- βThe $199 matters more to you than 256Wh per charge, and you'll only cycle it through occasional outages. You also get more AC outlets for less money.
If neither fits
Neither one travels, so a station one person can lift suits camping or tailgating better. Full-time van dwellers should pass too, since a 4,685Wh day is 135% of the EcoFlow's usable capacity and 144% of the Anker's. If all you need is a fridge and lights through an eight-hour outage, that's about half of either battery. Buy a smaller station and put the difference toward panels.
The Bottom Line
Take the DELTA Pro 3. The $199 premium buys a bigger battery with 1,000 more rated cycles behind it, in a lighter frame with the tighter switchover rating. The Anker's savings come with 2,000W of extra output that none of the six loads here can use.
Flip it only for a reason you can point at: an appliance that pulls past 4,000W, or an array too big for the EcoFlow's input. Either one makes the Anker the better box.
Frequently Asked Questions
Answers drawn from the spec record and cited owner research.
Is the EcoFlow DELTA Pro 3 worth the extra money over the Anker SOLIX F3800 Plus?
For most households, yes. The $199 premium buys 256Wh more per charge and 1,000 more rated cycles, or $0.17 per lifetime kWh against $0.23. The exception is anyone with a load past 4,000W continuous or a solar array past 2,600W. The Anker handles both and costs less.
Which lasts longer, the DELTA Pro 3 or the F3800 Plus?
The DELTA Pro 3. It's rated for 4,000 cycles against 3,000 on a bigger battery, which works out to a rated 11 years of daily cycling against 8.2. Both carry a 5-year warranty, so the difference shows up after the paperwork runs out.
Do I need the F3800 Plus's 6,000W output?
Only if something you own draws more than 4,000W continuously. The heaviest of the six loads we model peaks at 400W, and both units start and sustain every one of them.
Which is quieter, the DELTA Pro 3 or the Anker F3800 Plus?
The spec sheets can't settle it. EcoFlow publishes a 30dB figure for the DELTA Pro 3, and Anker publishes none for the F3800 PLUS. Reviewers describe the Anker's fans as barely audible under household loads and loud only above 4,000W or at max-speed charging.
Which recharges faster from solar, the DELTA Pro 3 or the F3800 Plus?
The Anker, if you own the panels to feed it. It accepts 3,200W into 3,840Wh, about 1.2 hours from empty at full rated input, against the EcoFlow's 2,600W into 4,096Wh, about 1.6 hours. Below 2,600W of panels the difference mostly disappears.
Related comparisons
Where to buy
EcoFlow DELTA Pro 3Pick
$2,799.00
$2,799.00 Β· direct from EcoFlow
Last checked 28 days ago. Prices move β check before you buy.
Anker SOLIX F3800 PLUS
$2,599.99
$2,599.99 Β· direct from Anker
Last checked 28 days ago. Prices move β check before you buy.
Prices may vary by retailer and are subject to change.