Head-to-head test
Anker SOLIX F3800 vs Goal Zero Yeti PRO 4000
The SOLIX F3800 costs $2,000 less and outputs 6,000W against the Yeti PRO 4000's 3,600W, but owners consistently flag its solar input as restrictive to third-party panels — the one honest catch that can flip the math for a buyer building a mixed solar array.
Full profiles: Anker SOLIX F3800 → · Goal Zero Yeti PRO 4000 →
Written by Gunner GustafsonUpdated
Whole-Home Backup Tester, Station Arena Test Desk
$2,199.99 · direct from Anker
Last checked 1 day ago. Prices move — check before you buy.
$3,999.95 · direct from Goal Zero
Last checked 1 day ago. Prices move — check before you buy.
Spec deltas
The Anker SOLIX F3800 costs $2,000. The Goal Zero Yeti PRO 4000 costs $4,000 — $2,000 more for a unit that also outputs less continuous power, 3,600W against the F3800's 6,000W.
On paper this isn't close: the F3800 is cheaper, more powerful, and its own lifetime math beats the Yeti's — $0.23 per kilowatt-hour against $0.25, even with 1,000 fewer rated cycles. But owners repeatedly describe the F3800's solar input as a real limitation, effectively steering buyers toward Anker's own pricier panels rather than a generic arrayA1A2A13A14. That's not a spec-sheet number, but it's a genuine field complaint worth weighing against the price gap.
Both units share the same 3,840Wh-class capacity ballpark (3,840Wh against 3,994Wh, 154Wh apart) and 5-year warranty. Where they split is price, output, and — per the owner ledger — how much freedom you get in choosing solar hardware.
What the Numbers Reveal
Each conclusion stated first — the numbers behind it on one line, the full analysis below.
continuous output
That combination usually signals a catch somewhere else on the spec sheet, and here it's weight: at 132.3 lbs against the Yeti's 115.7, the F3800 carries 16.6 lbs more to deliver that extra output headroom.
F3800 outputs 6,000W continuous with a 9,000W surge ceiling, priced at $2,000Yeti PRO 4000 outputs 3,600W continuous with a 7,200W surge ceiling, priced at $4,000
Why it mattersBuyers running loads near or past 3,600W continuous get more power and keep $2,000, provided they can handle 16.6 lbs more unit to move.
rated cycles
For a buyer who already owns generic MC4 panels or is building a custom array, that combination — lower input plus reported hardware lock-in — means the F3800's real-world solar experience is worse than the 2,400W spec number alone suggests.
F3800 solar input is 2,400W against the Yeti PRO 4000's 3,000WOwners repeatedly describe the F3800's DC input as restrictive to non-Anker panelsA1A2A13A14
Why it mattersAnyone building or reusing a third-party solar setup should weight this complaint seriously; anyone charging primarily from a wall outlet, generator, or Anker's own panels won't notice it at all.
Cost per warranty-year makes the mechanism explicit: $540 a year for the F3800 against $800 for the Yeti, a $260 annual difference that tracks the $2,000 price gap almost exactly.
F3800 costs $0.23 per lifetime kilowatt-hour against the Yeti PRO 4000's $0.25F3800 is rated for 3,000 cycles against the Yeti's 4,000 — 1,000 fewer
Why it mattersA buyer optimizing strictly for dollars per kilowatt-hour over the ownership horizon should take the F3800 even though it has fewer total cycles — the math still favors it.
The specific dimensions that decide these two units — everything else is a tie.
Lifetime Value
Selected because: The F3800 wins on cost per lifetime kWh despite fewer cycles — the clearest number on the page.
cost / lifetime kWh
The F3800 costs $0.23 per lifetime kilowatt-hour against the Yeti PRO 4000's $0.25 — a real, if modest, win for the cheaper unit, and one that survives the Yeti's 1,000-cycle advantage. Cost per warranty-year makes it plainer: $540 a year for the F3800 against $800 for the Yeti, a $260 gap that tracks the $2,000 sticker difference almost exactly.
This is the one place on this page where price, output, and lifetime cost all point the same direction. That's worth trusting more than a single metric getting lucky.
PowerScore Breakdown
Selected because: 6,000W vs 3,600W continuous output is the second major differentiator.
overall power score
Power score puts the F3800 at 6,013 against the Yeti PRO 4000's 5,423, a 590-point gap driven almost entirely by continuous output — 6,000W against 3,600W. Surge tells the same story: 9,000W against 7,200W.
The Yeti's inverter carries a wider surge-to-continuous ratio (2.0x against the F3800's 1.5x), meaning proportionally more reserve above its rated draw — a real but secondary advantage next to the raw output gap.
What the Specs Don't Tell You
Selected because: Solar input and UPS switchover are where the Yeti claws back ground.
rated cycles
Solar input is the Yeti's clearest edge: 3,000W against the F3800's 2,400W, and per the owner ledger, more open to third-party panel hardwareA1A2A13A14. UPS switchover also favors the Yeti, 10ms against 20ms — both fast enough that lights won't flicker, but the Yeti's line-interactive switching is the safer bet for gear that can't tolerate any gap.
Cycle life runs the other way — 4,000 for the Yeti against 3,000 for the F3800 — but as the lifetime-value section shows, that edge doesn't translate into cheaper ownership once price is factored in.
Portability & Form Factor
Selected because: 16.6 lb weight gap is the direct cost of the F3800's extra output.
weight
132.3 lbs against 115.7 — the F3800 is 16.6 lbs heavier, the direct cost of its 2,400W output advantage. Both need two hands and bent knees; neither is a one-person carry up a flight of stairs.
One owner reported the F3800 running everything they threw at it, including a water pump, off a single 120V outletA5, and fan noise stays quiet enough during normal use that it's the lift, not the sound, that owners noticeA11. The Yeti PRO 4000's build draws praise as one of the most durable reviewers have testedB1 — a fair trade-off consideration against the F3800's extra output.
Strengths & trade-offs
Anker SOLIX F3800
Strengths
- +Costs $2,000 less
- +Higher AC output
Trade-offs
- –Significantly heavier (+16.6 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 Yeti PRO 4000's 4,000, so it wears out sooner.
Goal Zero Yeti PRO 4000
Strengths
- +Lighter by 16.6 lb
- +Larger battery capacity
- +Faster solar charging
- +Rated for 4,000 charge cycles — much longer battery lifespan
Trade-offs
- –Substantially more expensive (+$2,000) than the SOLIX F3800.
- –Weaker inverter (-2,400W) limits appliance compatibility.
- –Very heavy unit that may be difficult for one person to lift.
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
Neither unit
Scoring these two at a campsite is a category error: neither travels — the SOLIX F3800 is 132.3 lbs and the Yeti PRO 4000 115.7 lbs, and at those weights they roll off a truck bed if they go anywhere at all. The 2,100Wh here is trivial for either — it's the going that doesn't happen. If you need power away from the building, you're shopping the wrong class.
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, and both list a UPS mode — compare their stated switchover classes, and remember those are manufacturer ratings, not measurements.
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 cover the night with room to spare and capacity decides nothing. Fan noise would — but neither maker publishes a fan-noise figure, so there's nothing to hold either of them 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, and their USB-C output is a wash — pick on weight, ports, or price.
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
Neither unit
Scoring these two at a tailgate is a category error: neither travels — the SOLIX F3800 is 132.3 lbs and the Yeti PRO 4000 115.7 lbs, and at those weights they roll off a truck bed if they go anywhere at all. The 670Wh here is trivial for either — it's the going that doesn't happen. If you need power away from the building, you're shopping the wrong class.
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 covers a full day of van-life draw — the F3800 needs 144% of its capacity, the Yeti PRO 4000 needs 138%. If this is your actual routine, keep shopping past this page.
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 15.9h. Pick on price, weight, or ports.
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 0–226.3hComfort & Convenience
Makes off-grid life actually enjoyablescale 0–45.3hHigh-Draw Appliances
These reveal the real limitsscale 0–3.4h¹ 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 SOLIX F3800
Take the F3800 unless your setup depends on flexible, third-party solar panel input. It's $2,000 cheaper, outputs 67% more continuous power, and actually beats the Yeti on lifetime cost per kWh — $0.23 against $0.25 — despite 1,000 fewer rated cycles, because the lower price more than offsets the shorter service life. The one real dent in that case is the recurring owner complaint that the F3800's DC input effectively locks buyers into pricier Anker-branded panelsA1A2A13A14; the Yeti's 3,000W input is both larger and more open. For most buyers charging from a wall outlet, generator, or Anker's own panels, that never bites.
Editor-assigned confidence, based on cited owner research and spec analysis.
List prices as of July 14, 2026. The links below open Anker's and Goal Zero's current prices.
$2,199.99 · direct from Anker
Last checked 1 day ago. Prices move — check before you buy.
or check the Yeti PRO 4000 price$3,999.95 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, SOLIX F3800 rates 4.7/5 (80th percentile of 16 Home Backup-class units), and Yeti PRO 4000 rates 3.6/5 (20th 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.
Weight Reality Check
Neither unit is grab-and-go. The Yeti PRO 4000 (115.7 lbs) is a two-person lift. The SOLIX F3800 (132.3 lbs) is firmly a two-person lift. It goes where you put it and stays there. That's a 17 lb difference.
More Reserve, Smaller Numbers
The Yeti's 2.0x surge-to-continuous ratio beats the F3800's 1.5x, but the F3800's absolute surge ceiling — 9,000W against 7,200W — is still the larger number. Ratio and raw capacity tell slightly different stories here.
UPS Switchover: ≤15ms vs ≤20ms
Both list a UPS mode, at different rated speeds. The Yeti PRO 4000 is rated ≤15ms — fine on paper for routers and most electronics; the fussiest PC power supplies sit right at this line. The SOLIX F3800 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. Worth saying because the per-dollar framing can suggest otherwise: the SOLIX F3800 works out at 2.5 years of cover per $1,000 spent against the Yeti PRO 4000's 1.3, but that spread is the price gap, not the terms.
Fewer Cycles, Still The Cheaper Unit To Own
The F3800's 3,000 cycles trail the Yeti's 4,000, but its lower price still wins the lifetime-cost math — $0.23 per kWh against $0.25. Cycle count alone doesn't decide this one.
Full record above — the Test Desk pick is the SOLIX F3800.
Check SOLIX F3800 price →or check the Yeti PRO 4000 priceOwnership Analysis
What happens after you buy — true cost of ownership, brand trust, and growth potential.
Lifetime value
Service lifeyears at one full cycle per day
Lifetime energy delivered
Cost per delivered kWh
│ warranty ends · Reaching the cycle rating means ~80% capacity remains — degraded, not dead.
Analyst note
The SOLIX F3800 wins on both sticker price and long-term value. At $0.17/kWh over its lifetime, it's meaningfully cheaper to own. Clear value winner.
Brand trust
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
Anker's SOLIX support was historically no-hassle, but recent reports describe AI-driven agents and more complex return logistics for units this heavy — even as the parent brand's broader reputation still carries weight.
Goal Zero
Ecosystem
Focused — a compact current line (6th-gen Yeti and Yeti Pro series), the previous-gen X series now out of stock across every model on Goal Zero's own store (checked 2026-09-13: 200X, 500X, 1000X, 1500X, 3000X, 6000X, some listed only as open-box), so buying one new means finding retailer stock, Sherpa power banks for the under-100Wh tier, plus Alta coolers, Nomad/Ranger solar panels, and vehicle integration kits
Support
US-based company (Salt Lake City, owned by NRG Energy). Historically considered premium support, but 2025-2026 reports describe long wait times, unresponsive email communication, and tickets going unaddressed for weeks. The "premium support justifies premium pricing" argument is weakening.
Community
Small but loyal — strong following in overlanding and preparedness communities. Official community forums were recently shuttered, frustrating long-time users.
App experience
Rated 4.4/5 iOS (~1,200 ratings) but recent reviews skew negative — recurring connectivity issues, crashes, and stability problems.
Unique strength
Pioneer of the portable power market — strongest brand heritage. US-based company with ruggedized, weather-resistant designs (IP ratings vary by model). Integrated "Yeti-Ready" ecosystem with coolers, lights, and vehicle kits.
Worth knowing
Goal Zero pioneered this category and still carries the strongest brand heritage, but 2025-2026 reports of long waits and unanswered support tickets are chipping at the premium-price justification.
Analyst note
Both brands' support has slipped from its historical peak, but only the F3800's owners describe a specific hardware-choice restriction (solar input) rather than just service friction.
Growth path
SOLIX F3800
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 2,400W 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.
Yeti PRO 4000
EXPANDABLESupports Goal Zero expansion batteries, so you can add capacity later without replacing the base unit — useful if your needs may climb past 3,994Wh.
Accepts up to 3,000W of solar. Enough for a serious multi-panel array.
Generous port selection supports complex multi-device setups.
Expansion batteries are Goal Zero-specific. You're investing in the Goal Zero ecosystem.
Realistic full solar rechargeat 70% of rated panel output — see methodology
Analyst note
Both expand, so neither locks you out of growth — decide on capacity, price, and the rest, not the expansion checkbox.
What Owners Report
Patterns from published owner reports and long-term reviews — every claim cited to its source below.
Anker SOLIX F3800
The most consistent complaint across owner threads is the solar input: multiple owners describe it as restrictive enough to effectively lock them into Anker's own panels, since generic third-party arrays are difficult to run at full capacityA1A2A13. One owner summed it up bluntly — solar charging is a last resort, not a first choice, on this unitA1.
Outside that, the F3800 gets solid marks: one owner ran a reliance transfer switch off a single 120V outlet and reports it handling everything including a water pumpA5, another reports zero issues compared to months of EcoFlow firmware fights on a previous unitA10. Fan noise runs quiet at idle with occasional intermittent buzzing under loadA6A11A12. Support is polarized — one owner described being ghosted after a major purchaseA8, another reported fast, responsive advanced replacements from the same forum threadA9.
“I have been using the F3800 for a couple weeks now, using only a single 120V outlet into a reliance transfer switch and it runs everything I throw at it including a water pump.”
Sources
diysolarforum.com · thesolarlab.com
Goal Zero Yeti PRO 4000
Where the F3800 draws solar complaints, the Yeti PRO 4000's 3,000W input gets consistent praise — reviewers report a full 0-100% recharge off-grid in under two hours, with surge and idle efficiency called impressiveB2. That input flexibility is the Yeti's clearest structural advantage over the F3800 in this matchup.
The honest catch: owner reliability reports are mixed, including at least one unit that threw 12V errors and wouldn't charge from solar until it was replacedB3. Reviewers still call the build among the most durable they've tested, backed by American-based support and a well-regarded appB1 — though at 115.7 lbs, it remains a two-person unit to move.
“Weighs about 115.7 lbs — a two-person unit to move — with one of the most durable builds reviewers have seen, backed by American-based support and a great app.”
Sources
bestgeneratorsolar.com · thesolarlab.com · goalzero.com · business.walmart.co · techradar.com · cleantechnica.com
Sources & Research Notes
Every owner claim in this report is traceable to a published source. The bracketed references above resolve here.
Recurring owner themes
- Owners consistently complain that the solar/DC input is restrictive, effectively locking users into pricier Anker-branded panels rather than generic arrays. [SOLIX F3800 · 4 entries]
- Fan/inverter noise is generally reported as quiet at idle but with occasional intermittent buzzing/rattling under load or fault conditions. [SOLIX F3800 · 3 entries]
- Anker support experiences are polarized — some owners report fast, responsive replacements while at least one reports being ignored after a major purchase. [SOLIX F3800 · 3 entries]
- Strong solar input, a great app, American-based support, and a durable build are the praise; heavy weight and some owner reliability reports (12V errors) are the caveats. [Yeti PRO 4000 · 3 entries]
- A1
“The solar input for charging is a pain, so much so that I'm only using it if there is no other way to charge the F3800.”
diysolarforum.com — 'Anker F3800 user reviews and opinions welcome' · 2024-07 · [negative]
- A2
“The limitations of the inputs make it very difficult to use solar panels other than Anker's panels, which are pricey for a "full up" config.”
diysolarforum.com — 'Anker F3800 user reviews and opinions welcome' · 2024-07 · [negative]
- A5
“I have been using the F3800 for a couple weeks now, using only a single 120V outlet into a reliance transfer switch and it runs everything I throw at it including a water pump.”
diysolarforum.com — 'Anker F3800 user reviews and opinions welcome' · 2024-07 · [positive]
- A6
“I have 4 BP3800s and one of them made similar buzzing/rattling noise when a heavy AC load was starting up... only for around a second while inverter was ramping up.”
diysolarforum.com — 'Big issue with Anker Solix F3800 plus battery pack' · 2025-08 · [mixed]
- A8
“Anker support is ghosting me after I spent over 20k on their solix line and solar panels within a month... they are not answering/returning my calls or emails.”
diysolarforum.com — 'Big issue with Anker Solix F3800 plus battery pack' · 2025-08 · [negative]
- A9
“I've called them and submitted tickets via their portal, always very responsive. They've even done advanced replacement for me.”
diysolarforum.com — 'Big issue with Anker Solix F3800 plus battery pack' · 2025-08 · [positive]
- A10
“I've had zero issues - especially compared to the EcoFlow firmware issues I fought with for months.”
diysolarforum.com — 'Anker solix f-3800 diy solar array' · 2024-02 · [positive]
- A11
“producing between 50 and 60 decibels when engaged, making it almost inaudible during regular use... until you try to lift it, that is.”
thesolarlab.com — 'Anker SOLIX F3800 Review: Did It Kill the Competition?' · unknown · [positive]
- A12
“Sometimes the fans are completely silent, then they kick in and out intermittently.”
thesolarlab.com — 'Anker SOLIX F3800 Review: Did It Kill the Competition?' · unknown · [mixed]
- A13
“no one on Youtube is addressing the solar input problem directly. But People smarter than myself with secondary charge controllers... are able to navigate around the problem.”
diysolarforum.com — 'Anker F3800 user reviews and opinions welcome' · 2024-07 · [negative]
- A14
“other than the solar input problem having limited panel array choices to max out it's input capability it's a great unit so far.”
diysolarforum.com — 'Anker F3800 user reviews and opinions welcome' · 2024-07 · [mixed]
- B1
“Weighs about 115.7 lbs — a two-person unit to move — with one of the most durable builds reviewers have seen, backed by American-based support and a great app.”
bestgeneratorsolar.com / thesolarlab.com — Yeti PRO 4000 review · 2026 · [mixed]
- B2
“3,000W solar input recharges 0-100% in under 2 hours off-grid, with impressive surge and idle efficiency; fully expandable.”
goalzero.com / thesolarlab.com — Yeti PRO 4000 review · 2026 · [positive]
- B3
“Owner reliability is mixed — some report 12V errors, including a first unit returned or replaced and a second that had a 12V error and would not charge from solar.”
business.walmart.com reviews / oliver owner forums — Yeti PRO 4000 · 2026 · [negative]
Research compiled July 14, 2026.
What Owners Actually Report
Drawn from 97 comments on independent review channels — 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.
Anker SOLIX F3800
137 claims from 91 comments · 76 from owners · 26 with figures
- Charging
- 19 · 46% negative
- Price & value
- 16 · 47% negative
- Runtime
- 8 · 15% negative
- Other
- 19 · 50% negative
- Expandability
- 12 · 36% negative
What owners complain about
Sarcastic about the $1600 price of each official expansion battery versus cheaper alternatives.
Price & valuemeasuredowner20 agreedsource →
A single Chargeverter only gives ~1200W due to the no-common-ground XT-60 DC inputs.
Chargingmeasuredowner12 agreedsource →
AC charging kills 240V and caps output to one bank at ~1200W of the 6000W inverter.
Inverter & surgemeasuredowner7 agreedsource →
What owners praise
Ran 2 fridges, 2 freezers, lights, pellet stove and Starlink for 6.5 hours using only 32%.
Runtimemeasuredowner61 agreedsource →
Recharged in 1 hour 15 minutes at just under 3000W from the grid.
Chargingmeasuredowner61 agreedsource →
Uses an F3800 for peak shaving on a 6c off-peak / 25c on-peak time-of-use plan.
Price & valueowner10 agreedsource →
Goal Zero Yeti PRO 4000
15 claims from 6 comments · 14 from owners · 3 with figures
- Runtime
- 2 · 54% negative
- App & firmware
- 2 · 50% negative
- Warranty & support
- 2 · 0% negative
- Durability
- 1 · 100% negative
- Build quality
- 2 · 0% negative
What owners complain about
Lasted only 11 months and had to be replaced twice before he returned it.
Durabilitymeasuredownerafter 11 monthssource →
Charges to 100% then falls to 88% within 1-2 hours and sits there until recharged.
Idle drainmeasuredownersource →
Runs a 500W oxygen concentrator about 3 hours against the 7 hours he was promised.
Runtimemeasuredownersource →
What owners praise
With a Tank Pro expansion it has powered his whole camper van build for a year.
Runtimeownerafter 12 months1 agreedsource →
30A DC and 30A AC outputs plus the angled display are especially useful in a van build.
Build qualityowner1 agreedsource →
Sent it back completely and got all of his money back.
Warranty & supportownersource →
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 — for measurements we ran ourselves, see the methodology.
Who Should Buy Which
Buy the SOLIX F3800 if you…
- →You charge primarily from a wall outlet, generator, or Anker's own solar panels, and want $2,000 back along with 2,400W more continuous output.
- →You're optimizing strictly for lifetime cost per kilowatt-hour — the F3800 wins that math outright, $0.23 against $0.25, despite fewer rated cycles.
Buy the Yeti PRO 4000 if you…
If neither fits
If you need a full day of van-life-style draw — 4,685Wh — neither covers it: the F3800 needs 144% of its capacity, the Yeti needs 138%. Look at a larger-class station instead.
The Bottom Line
The F3800 is $2,000 cheaper, outputs 67% more continuous power, and beats the Yeti PRO 4000 on lifetime cost per kilowatt-hour — $0.23 against $0.25 — despite 1,000 fewer rated cycles. The one real catch is the owner-reported solar input restriction, which matters only if you're building a mixed or third-party panel array.
For most buyers charging from a wall outlet or Anker's own panels, take the F3800. Buyers building a serious third-party solar setup should weigh the Yeti's more open 3,000W input against its $2,000 premium.
Frequently Asked Questions
Answers drawn from the spec record and cited owner research.
Is the Anker SOLIX F3800 cheaper to own than the Goal Zero Yeti PRO 4000?
Yes. The F3800 costs $0.23 per lifetime kilowatt-hour against the Yeti's $0.25, and $540 per warranty-year against $800 — despite having 1,000 fewer rated cycles. Its $2,000 lower price more than offsets the shorter cycle count.
Does the Anker SOLIX F3800 work with any solar panels?
Owners report the DC input is restrictive enough to effectively push you toward Anker's own panels rather than a generic third-party array. It's not a hard spec limitation, but it's a recurring field complaint worth checking against your existing solar hardware before buying.
Which one puts out more power?
The F3800, by a clear margin — 6,000W continuous against the Yeti PRO 4000's 3,600W, and 9,000W surge against 7,200W. The Yeti's advantages are elsewhere: solar input, UPS speed, and cycle life.
Which has the faster solar recharge?
The Yeti PRO 4000, with a 3,000W input against the F3800's 2,400W, and reviewers report a full 0-100% recharge off-grid in under two hours. It's also reported as more open to third-party panel hardware than the F3800.
Which one should I actually buy?
The F3800, unless your solar setup depends on flexible, non-Anker panel hardware. It's $2,000 cheaper, more powerful, and wins the lifetime-cost math outright — the Yeti only pulls ahead on solar input openness, UPS speed, and cycle life.
Where to buy
Anker SOLIX F3800Pick
$2,199.99
$2,199.99 · direct from Anker
Last checked 1 day ago. Prices move — check before you buy.
Goal Zero Yeti PRO 4000
$3,999.95
$3,999.95 · direct from Goal Zero
Last checked 1 day ago. Prices move — check before you buy.
Prices may vary by retailer and are subject to change.