Head-to-head test
Anker SOLIX F3800 PLUS vs Goal Zero Yeti PRO 4000
The SOLIX F3800 Plus delivers 6,000W continuous against the Yeti PRO 4000's 3,600W — 67% more power for $1,101 less — and the Yeti's one real answer back is a UPS switchover twice as fast, 10ms against 20ms.
Written by Gunner GustafsonUpdated
Whole-Home Backup Tester, Station Arena Test Desk
Anker
SOLIX F3800 PLUS
6,265Power Score · The AC & Fridge Zone
$2,499.99 list · direct from Anker
Goal Zero
Yeti PRO 4000
5,423Power Score · The AC & Fridge Zone
$3,999.95 list · direct from Goal Zero
Spec deltas
The Anker SOLIX F3800 Plus puts out 6,000W continuous. The Goal Zero Yeti PRO 4000 tops out at 3,600W. That 2,400W gap decides more of this matchup than the $1,101 price difference sitting on top of it.
Both are large-format LFP stations with 5-year warranties and nearly identical capacity — 3,840Wh against 3,994Wh, 154Wh apart, close enough to ignore. Where they actually diverge is output headroom and how each handles a hard power interruption: the F3800 Plus switches over in 20 milliseconds, the Yeti in 10.
Run the ownership math and it's closer than the price tag suggests: both compute to the same $0.25 per lifetime kilowatt-hour. The extra $1,101 for the Yeti buys 1,000 more rated cycles and a faster switchover, not cheaper power.
What the Numbers Reveal
Each conclusion stated first — the numbers behind it on one line, the full analysis below.
continuous output
That headroom isn't free. At 132.3 lbs against the Yeti's 115.7, the F3800 Plus carries 16.6 lbs more — the extra copper and switching hardware needed to handle 2,400W more continuous draw.
F3800 Plus outputs 6,000W continuous with a 9,000W surge ceilingYeti PRO 4000 outputs 3,600W continuous with a 7,200W surge ceiling
Why it mattersAnyone running a table saw, air compressor, or a load approaching 3,600W continuous should take the extra pounds and buy the F3800 Plus; anyone whose draw sits comfortably under 2,000W should let the weight difference decide instead.
Since both units price out to the same $0.25 per lifetime kilowatt-hour, that premium isn't paying for cheaper power at all. It's paying entirely for the faster switchover, plus 1,000 extra rated cycles.
Yeti PRO 4000 costs $3,999.95 against the F3800 Plus's $2,899, a $1,101 gapYeti PRO 4000 switches over in 10ms against the F3800 Plus's 20ms
Why it mattersThat trade only earns its keep for gear that can't tolerate any mid-cycle glitch — a home server, networked security gear, a CPAP with a finicky power supply. Everyone else should keep the $1,101.
rated cycles
The F3800 Plus's lower price offsets its shorter service life closely enough that the two effects cancel. The gap that survives shows up in years of daily use instead: 8.2 years for the F3800 Plus against 11 for the Yeti.
F3800 Plus rated for 3,000 cycles, Yeti PRO 4000 rated for 4,000 — 1,000 moreBoth compute to the same $0.25 per lifetime kilowatt-hour
Why it mattersA buyer weighing 'which battery lasts longer' is asking the wrong question — on pure energy-dollar cost they're identical, so decide on output and price instead.
The specific dimensions that decide these two units — everything else is a tie.
PowerScore Breakdown
Selected because: The 6,000W vs 3,600W output gap is the actual decision axis and drives the composite score.
overall power score
Power score puts the F3800 Plus at 6,170 against the Yeti PRO 4000's 5,423 — a 747-point gap that's really just the output number restated. 6,000W continuous with a 9,000W surge ceiling beats 3,600W and 7,200W on every measure the score weights.
The surge ratios flip the story slightly: the F3800 Plus's surge sits at 1.5x its continuous rating, the Yeti's at 2.0x. In practice that means the Yeti holds proportionally more reserve above what it's rated to sustain, even though its absolute numbers trail across the board.
Lifetime Value
Selected because: Both land at the same $0.25/kWh — the honest surprise that reframes the price gap.
cost / lifetime kWh
Both units land at exactly $0.25 per lifetime kilowatt-hour. The F3800 Plus delivers 11,520kWh over its 3,000-cycle life for $2,899; the Yeti PRO 4000 delivers 15,976kWh over 4,000 cycles for $3,999.95. Different prices, different capacities, identical cost per unit of energy.
Where they split is cost per warranty-year: $580 for the F3800 Plus against $800 for the Yeti, a $220 annual gap that's the cleanest way to see where the extra money actually goes — not into cheaper energy, but into a longer runway.
Portability & Form Factor
Selected because: 16.6 lb weight difference is the real cost of the F3800 Plus's extra output.
weight
132.3 lbs against 115.7 — the F3800 Plus is 16.6 lbs heavier. Both are a two-hands, bent-knees lift; neither is a one-person carry up a flight of stairs.
Owners of the F3800 Plus note the wheels handle grass and pavement fine but stall on rough terrainA8, and aggregated feedback flags portability as a recurring concern despite praise for raw outputA14. Reviewers call the Yeti PRO 4000's build one of the most durable they've testedB1 — which matters more once you're the one dragging either unit to a tailgate.
What the Specs Don't Tell You
Selected because: UPS switchover and cycle life are the Yeti's two genuine, narrow advantages.
rated cycles
UPS switchover is the clearest gotcha here: 10ms for the Yeti PRO 4000 against 20ms for the F3800 Plus. Both are fast enough that household lights won't flicker; the Yeti's line-interactive switching is the safer bet for networking gear or anything with a power supply that dislikes even a brief gap.
Cycle life favors the Yeti on paper — 4,000 against 3,000 — but as the lifetime-value math shows, that edge doesn't translate into cheaper ownership once the F3800 Plus's lower price is in the equation. Treat it as a longer runway, not a discount.
Brand Trust
Selected because: Cross-brand pair with both companies' support sliding from historical highs — worth knowing regardless of which unit wins.
Anker's SOLIX support was historically excellent and no-hassle; recent reports describe AI-driven agents and heavier return logistics for units this size, a real step down even if the parent brand's reputation still carries weight. Goal Zero's story runs the same direction from a different starting point — the category's pioneer brand, but 2025-2026 reports describe long waits and unanswered tickets that undercut its premium positioning.
Neither brand is at its best right now. Anker at least backs that decline with the cheaper unit and a more active community footprint; Goal Zero is asking $1,101 more while its own support reputation slides the same direction.
Strengths & trade-offs
Anker SOLIX F3800 PLUS
Strengths
- +Costs $1,500 less
- +Higher AC output
- +Faster solar charging
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
- +Rated for 4,000 charge cycles — much longer battery lifespan
Trade-offs
- –Substantially more expensive (+$1,500) than the SOLIX F3800 PLUS.
- –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
Either unit
Both handle two nights comfortably. The SOLIX F3800 PLUS uses 64% and the Yeti PRO 4000 uses 62%. 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 covers a full day of van-life draw — the F3800 Plus 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 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
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 PLUS
Buy the F3800 Plus unless your gear specifically needs sub-10ms switchover. It outputs 2,400W more continuous power, costs $1,101 less, and both units land at exactly the same $0.25 per lifetime kilowatt-hour — so the Yeti PRO 4000's premium isn't buying cheaper energy, it's buying 1,000 extra rated cycles and a faster switch during an outage. That's a real trade, but a narrow one. Anyone running loads over 3,600W continuous, or just watching the price, should take the F3800 Plus.
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.
$2,499.99 list · direct from Anker
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 PLUS rates 4.7/5 (80th percentile of 16 Home Backup-class units), and Yeti PRO 4000 rates 3.8/5 (27th 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 PLUS (132.3 lbs) is firmly a two-person lift. It goes where you put it and stays there. That's a 17 lb difference.
Surge Power: Inverter Quality Indicator
The Yeti PRO 4000 has a 2× surge-to-continuous ratio vs the SOLIX F3800 PLUS's 1.5×. A higher ratio (≥2×) means the inverter handles motor startup surges better. That's critical for fridges, AC compressors, and power tools that briefly draw 2-3× their rated wattage. The SOLIX F3800 PLUS may trip when starting these appliances even though its continuous wattage looks sufficient.
Ten Milliseconds, For A Price
The Yeti PRO 4000 switches over in 10ms against the F3800 Plus's 20ms. Both are imperceptible to lights and most electronics; the gap only matters for gear that can't tolerate any interruption at all.
A Cycle Advantage That Doesn't Show Up In The Price
4,000 rated cycles against 3,000 sounds like a clear win for the Yeti, but both units land at the same $0.25 per lifetime kilowatt-hour once price is factored in. Treat the extra cycles as a longer ownership horizon, not cheaper power.
Full record above — the Test Desk pick is the SOLIX F3800 PLUS.
Check SOLIX F3800 PLUS 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
Both units have similar long-term ownership costs ($0.22/kWh vs $0.25/kWh). The price difference is what you see on the sticker — neither is a hidden bargain or rip-off.
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; recent reports describe AI-driven agents and more complex return logistics for units this heavy — a real decline even as the parent brand's consumer-electronics reputation still carries weight.
Goal Zero
Ecosystem
Focused — 5-6 active portable power station models across Yeti and Yeti Pro series, 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 (IPX4). 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. Only one of them is also charging $1,101 more for less continuous output while that slide happens.
Growth path
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.
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 PLUS
Real-world runtime tracks the load: reviewers report about 17 hours running a fridge, a few laptops, and occasional e-bike chargingA4, but that drops to roughly 7.3 hours once a fridge and freezer are pulling from the unit togetherA5. Fan noise stays background during normal household draw and only becomes noticeable north of 4,000W or during max-speed chargingA10.
Anker fixed the solar input for this generation — a genuine 3,200W input compatible with standard MC4 panels, not the restricted port some owners of the non-Plus F3800 flagA11. Support experiences are less consistent: one owner described being ghosted after repeated contact over a battery-pack noise issueA1, while another in the same forum thread reported fast, responsive advanced replacementsA2 — worth going in with eyes open rather than assuming either outcome.
“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
Goal Zero Yeti PRO 4000
At roughly 3,994Wh with a sub-10ms UPS switchover, reviewers single the Yeti PRO 4000 out for RV and camping backup specifically because the gap during a grid drop is short enough that sensitive gear rarely noticesB4. The 3,000W solar input recharges 0-100% in under two hours off-grid, with surge and idle efficiency reviewers call impressiveB2.
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. Balanced against that is a build reviewers call among the most durable they've tested, backed by American-based support and a well-regarded appB1 — though at 115.7 lbs, it's still 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
- 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]
- 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
“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]
- A2
“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]
- A4
“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]
- A5
“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]
- A8
“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]
- A10
“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]
- A11
“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]
- A14
“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]
- 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]
- B4
“Roughly 3,994Wh capacity with a fast sub-10ms UPS switchover; praised for RV and camping backup.”
techradar.com / cleantechnica.com — Yeti PRO 4000 review · 2026 · [positive]
Research compiled July 14, 2026.
Who Should Buy Which
Buy the SOLIX F3800 PLUS if you…
- →You're running loads approaching or past 3,600W continuous — a table saw, air compressor, or several appliances at once — and want 2,400W of extra headroom without a second unit.
- →You want the lower price, $2,899 against $3,999.95, and don't need sub-10ms switchover — 20ms is imperceptible to lights and most household electronics.
Buy the Yeti PRO 4000 if you…
- →You're running gear that can't tolerate any interruption — a home server rack, networked security system, or a CPAP with a power supply that's picky about gaps — and want the Yeti's 10ms switchover as insurance.
- →You want the extra 1,000 rated cycles and don't mind paying $1,101 more for a longer ownership horizon at the same $0.25-per-kWh cost.
If neither fits
If you need to run a full day of van-life-style draw — 4,685Wh — neither unit gets there: the F3800 Plus needs 144% of its capacity and the Yeti needs 138%. Look at a larger-class station or a dual-battery setup instead.
The Bottom Line
The F3800 Plus outputs 67% more continuous power for $1,101 less, and both units land at the same $0.25 per lifetime kilowatt-hour — so the extra money for the Yeti PRO 4000 isn't buying cheaper energy, it's buying a faster switchover and 1,000 more rated cycles.
For anyone running loads over 3,600W or watching the price, take the F3800 Plus. Anyone protecting gear that can't tolerate any interruption should pay the premium and take the Yeti.
Frequently Asked Questions
Answers drawn from the spec record and cited owner research.
Is the Anker SOLIX F3800 Plus more powerful than the Goal Zero Yeti PRO 4000?
Yes, by a clear margin on continuous output — 6,000W against 3,600W, a 2,400W gap — and on surge, 9,000W against 7,200W. The Yeti's advantages sit elsewhere: a faster 10ms UPS switchover and 1,000 more rated cycles.
Which one is cheaper to own long-term?
They're effectively tied — both compute to $0.25 per lifetime kilowatt-hour. The F3800 Plus is $1,101 cheaper up front with a lower cost per warranty-year ($580 against $800), while the Yeti's extra cycles stretch its daily-use lifespan to about 11 years against 8.2.
How fast do these switch over during a power outage?
The Yeti PRO 4000 switches in about 10 milliseconds, the F3800 Plus in about 20. Both are fast enough that household lights won't flicker; the difference only matters for equipment that can't tolerate any interruption at all.
Can either handle a full day of van life power draw?
No. A Van Life Daily load of 4,685Wh exceeds both units' capacity — the F3800 Plus would need 144% of its 3,840Wh, the Yeti PRO 4000 would need 138% of its 3,994Wh. Neither is sized for full-time daily use without a recharge.
Is the Yeti PRO 4000 worth $1,101 more than the F3800 Plus?
Only if you specifically need the faster UPS switchover or value the extra 1,000 rated cycles and Goal Zero's build reputation. On raw output, price, and lifetime cost per kWh, the F3800 Plus is the stronger buy for most people.
Related comparisons
Where to buy
Anker SOLIX F3800 PLUSPick
$2,499.99
$2,499.99 list · direct from Anker
Goal Zero Yeti PRO 4000
$3,999.95
$3,999.95 list · direct from Goal Zero
Prices may vary by retailer and are subject to change.