Head-to-head test
Anker SOLIX F3800 vs Goal Zero Yeti 6000X
The Yeti's bigger battery is the only thing it wins, and the F3800 answers with triple the output, four times the solar input and six times the rated cycles for less money.
Full profiles: Anker SOLIX F3800 → · Goal Zero Yeti 6000X →
Written by Gunner GustafsonUpdated
Whole-Home Backup Tester, Station Arena Test Desk
Spec deltas
The Anker SOLIX F3800 is the cheaper of these two by $1,800, and it still has three times the continuous output, four times the solar input, a UPS mode and six times the rated charge cycles. The Goal Zero Yeti 6000X answers with one thing: a bigger battery, 6,071Wh to the F3800's 3,840Wh.
That extra 2,231Wh is real. It carries the Yeti through Van Life Daily, the one day the F3800 can't finish, and it buys more runway in a long outage with nothing to recharge from. But it feeds a 2,000W inverter and two AC outlets from an NMC pack rated for 500 cycles, and over that rated life the Yeti hands back about a quarter of the energy the F3800 does.
Our pick's catch is the one you feel in your lower back: at 132.3 lb, the F3800 is 26.3 lb heavier than the Yeti despite the smaller battery. Neither of them goes camping. Buy the F3800 unless your days already run past its 3,264Wh usable capacity and you'd rather not add an expansion battery.
What the Numbers Reveal
Each conclusion stated first — the numbers behind it on one line, the full analysis below.
rated cycles
Doing that for less money is how the lifetime cost lands at $0.19 per kilowatt-hour for the F3800 against $1.32 for the Yeti, about seven times apart. Reviews trace the Yeti's short rating to its NMC cells, rated to 80% after 500 cyclesB1B4.
F3800: 3,000 rated cycles on a 3,840Wh pack; Yeti 6000X: 500 rated cycles on a 6,071Wh packRated lifetime throughput: 11,520 kWh for the F3800, 3,036 kWh for the YetiThe F3800 is the cheaper unit by $1,800
Why it mattersAnyone who'll cycle this weekly or more, through storm seasons or as a daily solar battery, should treat the Yeti's extra capacity as rented rather than owned.
Take that 4,857Wh, apply the same 85% usable derate the scenarios use, and it no longer covers a 4,685Wh day. So by the time a daily-cycled Yeti reaches its rating, about 1.4 years in, the 475Wh margin that won it this row is gone. The F3800's route to the same day is an Anker expansion battery; its figures aren't on this page, so price it before you decide.
Van Life Daily needs 4,685Wh: the Yeti finishes with 475Wh to spare, the F3800 falls 1,421Wh shortYeti 6000X rating: 500 cycles, about 1.4 years of daily useReviews put the Yeti at about 80% capacity after 500 cycles, roughly 4,857Wh of its 6,071WhB4
Why it mattersA full-time van-lifer should price an F3800 plus an expansion battery against the Yeti before paying extra for a margin the Yeti's own wear rating erases.
continuous output
The F3800 can feed 240V loads, which is where many well pumps live, and one owner runs everything on a transfer switch from a single 120V outlet, water pump includedA5. It also picks up the load within ≤20ms when the grid drops, while the Yeti waits for someone to notice the lights went out.
F3800: 6,000W continuous, 9,000W surge, eight AC outlets, two 240V outletsYeti 6000X: 2,000W continuous, 3,500W surge, two AC outlets, no 240V outletF3800 lists a UPS switchover of ≤20ms; the Yeti lists no UPS mode
Why it mattersAnyone backing up a house rather than a campsite should read the Yeti's extra watt-hours as energy it can only hand out slowly.
solar input
Grant the panel-matching complaintA1A2, and the arithmetic still survives it. The F3800 only has to reach a quarter of its rated input to match the Yeti running flat out, and at that 600W it still refills its smaller pack in about six and a half hours (3,840Wh ÷ 600W). By day two of an outage, refill speed matters more than which tank started bigger.
Solar input: 2,400W on the F3800, 600W on the Yeti 6000XCapacity: 3,840Wh on the F3800, 6,071Wh on the YetiOwners consistently report the F3800's solar input is hard to max out with non-Anker panelsA1A2A13A14
Why it mattersAnyone planning to ride out a long outage on solar should buy the input ceiling, not the tank, and budget for panels that can actually reach it.
The specific dimensions that decide these two units — everything else is a tie.
Lifetime Value
Selected because: Six times the rated cycles on the cheaper unit is the widest gap between these two, and it grows with every cycle you run.
cost / lifetime kWh
Cycle the Yeti daily, the way a cabin battery or a van gets cycled, and it reaches its 500-cycle rating in about 1.4 years, before its own two-year warranty has run out. The F3800 takes about 8.2 years to get there. At twice a week the ratings stretch to 4.8 years and 28.8, and the ratio barely moves: whatever your cadence, the cheaper unit carries roughly six times the battery life.
The honest asterisk is the closet buyer. A unit that sits charged for the odd outage won't approach 500 cycles soon (once a week still takes 9.6 years), so for that owner the lifetime math is a tiebreaker rather than the headline. It's a tiebreaker on top of a $1,800 head start, though, and the F3800 wins both.
Your Life, Your Pick
Selected because: The Yeti's bigger battery wins three rows, but Van Life Daily is the only day the F3800 can't finish.
Three rows go to the Yeti, and two of those are reserve rather than reach: the F3800 also finishes the 8-Hour Blackout and the Remote Workday, with well over a thousand watt-hours untouched each time. Van Life Daily is the real one. A 4,685Wh day asks for 144% of the F3800's usable capacity and 91% of the Yeti's, so only one of them makes it to bedtime.
Camping and the tailgate come back 'neither', and not because of watt-hours: at 132.3 and 106 lb, these go where a dolly takes them. CPAP is a tie that uses a tenth of the F3800 and less of the Yeti. The one spec that separates them there is the UPS mode, and only the F3800 lists one.
Growth Path
Selected because: Both take expansion batteries; the 2,400W solar ceiling against 600W decides how fast either bank refills once it grows.
solar input
Every expansion battery added to the Yeti makes its 600W solar ceiling look smaller. The bank grows; the inlet doesn't. The F3800 starts with four times the inlet at 2,400W, which is why the same expansion plan reads so differently on the two units.
The catch is getting that 2,400W in. Owners consistently report the input is fussy with anything but Anker's own, pricier panels, and the workaround they describe is a secondary charge controllerA1A2A13A14. Budget for one or the other before counting on the full rating. Even without them, the Yeti's ceiling is the lower one.
What the Specs Don't Tell You
Selected because: Four cards fire and three favor the F3800; the fourth is weight, where our pick is 26.3 lb heavier.
rated cycles
Our pick loses the lift, and by a lot: 132.3 lb against 106, so the F3800 is 26.3 lb heavier while holding the smaller battery. Both are two-person, stationary units. The F3800 is the one you place once, on a garage floor or beside the breaker panel, and then leave alone.
The other three cards all point the F3800's way: a listed UPS switchover of ≤20ms, five years of warranty against two, and the cycle rating this whole page hangs on. One owner did report no pass-through on its 120V inputA4, which sits awkwardly beside that UPS listing. Test the handover with your own router or desktop before you trust it with one.
Brand Trust
Selected because: A new Yeti 6000X means hunting retailer stock, and both brands' support records have slipped, which puts weight on the warranty terms.
A new Yeti 6000X is a retailer hunt: Goal Zero's own store listed every X-series model, this one included, as out of stock when checked in September 2026. Whatever you find comes with two years of cover from a brand whose 2025-2026 support reports describe long waits and tickets unanswered for weeks.
Anker's record is slipping too, from a higher start. One owner got advance replacements without a fightA9; another describes being ignored after a large Solix spend, though we couldn't confirm which model that buyer ownedA8. With neither brand earning blind faith, the five-year warranty is the protection you can actually hold someone to, and it's on the cheaper box.
Strengths & trade-offs
Anker SOLIX F3800
Strengths
- +Costs $1,800 less
- +Higher AC output
- +Longer warranty
- +Faster solar charging
- +Rated for 3,000 charge cycles — much longer battery lifespan
Trade-offs
- –Significantly heavier (+26.3 lbs), making it harder to move.
- –Very heavy unit that may be difficult for one person to lift.
Goal Zero Yeti 6000X
Strengths
- +Lighter by 26.3 lb
- +Larger battery capacity
Trade-offs
- –Substantially more expensive (+$1,800) than the SOLIX F3800.
- –Weaker inverter (-4,000W) limits appliance compatibility.
- –Very heavy unit that may be difficult for one person to lift.
- –Shorter-lived battery — rated for 500 charge cycles vs the SOLIX F3800's 3,000, 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
Neither unit
Scoring these two at a campsite is a category error: neither travels — the SOLIX F3800 is 132.3 lbs and the Yeti 6000X 106 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
Yeti 6000X
The Yeti takes this row on reserve: it finishes the night at 32% used with 3,515Wh left, about 2.1 more nights like it. The F3800 ends at 50% with 1,619Wh, nearly a second night in hand. If your outages outlast two evenings with no way to recharge, that reserve is the Yeti's best argument.
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 320Wh night uses 10% of the F3800 and 6% of the Yeti, so capacity is a tie that decides nothing, and neither maker publishes a fan-noise figure. The tiebreak worth having is the UPS mode: only the F3800 lists one, rated ≤20ms, so it can sit between the wall and the machine and take over if the grid drops at 2 a.m.
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
Yeti 6000X
The Yeti clears the day at 18% used with 4,250Wh banked; the F3800 finishes at 28% with 2,354Wh spare. Both leave far more than the day used, so the Yeti's win here is reserve, not capability.
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 6000X 106 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
Yeti 6000X
This is the row the Yeti's extra 2,231Wh was built for. A 4,685Wh day leaves the F3800 1,421Wh short, about 69% covered, while the Yeti finishes with 475Wh to spare. That margin is thin, and it's the first thing a 500-cycle pack gives up as it wears, so size for headroom if this is your daily life.
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
For this load: Yeti 6000X runs 25.2h vs 15.9h.
$3,999.95 list · direct from Goal Zero
Planning for more than this? Describe your whole setup and get it sized →
Modeled from the spec record — same math as the tables below. Methodology
Runtime by appliance
Real-world runtime estimates for common appliances, modeled at 85% inverter efficiency.¹
Essentials
The basics you need runningscale 0–344hComfort & Convenience
Makes off-grid life actually enjoyablescale 0–68.8hHigh-Draw Appliances
These reveal the real limitsscale 0–5.2h¹ 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
October 11, 2026
Verdict: the SOLIX F3800
Buy the F3800. At $2,200 against $4,000 it's the cheaper unit, and it beats the Yeti on continuous output (6,000W vs 2,000W), solar input (2,400W vs 600W), rated cycles (3,000 vs 500), warranty (five years vs two) and UPS switchover, which only it lists. The Yeti's one real lead is capacity: it carries Van Life Daily, the day the F3800 can't finish, and it gives a longer battery-only runway in an outage with nothing to recharge from. Even that lead wears, since reviews rate its NMC pack to about 80% after 500 cyclesB1B4, enough to erase the 475Wh margin that wins it the van-life row. Take the Yeti only for a daily load past the F3800's 3,264Wh usable, and only if one box matters more to you than an F3800 plus an expansion battery.
Editor-assigned confidence, based on cited owner research and spec analysis.
List prices as of October 11, 2026. The links below open Anker's and Goal Zero's current prices.
typically $2,199.99 · check the store for today’s price
Last checked 11 days ago. Prices move — check before you buy.
or check the Yeti 6000X price$3,999.95 list
Written by Gunner Gustafson, Whole-Home Backup Tester · Station Arena Test Desk · Updated October 11, 2026
Black Friday · 25 days out
Prices to beat:SOLIX F3800 $1,980Yeti 6000X $4,000
The lowest we have recorded for each. We have never seen the Yeti 6000X discounted, so any real cut on it would be a first.
Measured Data
Benchmark scores and the full spec record, side by side.
Benchmark scores
Not rated for both units (minimum threshold unmet): RV Living.
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 4.5/5 (68th percentile of 20 Home Backup-class units), and Yeti 6000X rates 3.3/5 (1st percentile of 20 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.
The Cheaper Box Is the Heavier Box
132.3 lb for the F3800 against 106 for the Yeti: our pick is 26.3 lb heavier while holding 2,231Wh less. Both are two-person lifts and both are stationary units, so the real question is how often you'll move it. Once, onto a garage floor, and the difference is a bad afternoon. Every weekend, and neither is the right class.
Only the F3800 Can Sit Inline
The F3800 lists a UPS switchover of ≤20ms: it sits between the wall and your gear and takes over when the grid drops. That's fine on paper for routers and most electronics; the fussiest PC power supplies sit right at that line. The Yeti 6000X lists no UPS mode, so anything on it waits for you to notice the lights went out.
Five Years Against Two
The F3800 carries five years of warranty, the Yeti two. Set them beside the cycle ratings and the gap widens: daily use reaches the F3800's 3,000 cycles in about 8.2 years and the Yeti's 500 in about 1.4, so a daily-cycled Yeti meets its rating before its warranty ends.
Count the Energy, Not the Cycles
A Yeti cycle is bigger, 6,071Wh to the F3800's 3,840Wh, and that narrows the gap from six times to nearly four: over the rated life the F3800 moves roughly 11,520 kWh against the Yeti's 3,036 kWh. At twice a week that's 28.8 years of rating against 4.8. Hitting the rating doesn't kill either battery; it leaves roughly 80% of the original capacity.
Full record above — the Test Desk pick is the SOLIX F3800.
Check SOLIX F3800 price →or check the Yeti 6000X 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 $0.19/kWh over its lifetime, it's meaningfully cheaper to own. Clear value winner.
Delivers each lifetime kWh for $1.13 less — check the SOLIX F3800 price →
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, with a parent brand known for no-hassle replacements. Recent reports describe AI-driven agents giving generic answers and awkward hazmat return logistics for heavy units like this one, a slide from an excellent baseline rather than a bad start.
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
Anker's consumer-electronics scale behind a SOLIX line that runs from compact C-series units to the F-series flagships and the X1 home system, with some of the stronger dollar-per-watt-hour pricing in the catalog.
Worth knowing
Firmware updates have removed features without warning, and the expansion ecosystem is smaller than EcoFlow's.
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
Salt Lake City-based and owned by NRG Energy. Once the premium-support brand; 2025-2026 reports describe long waits and tickets sitting unanswered for weeks, which weakens the case for paying extra for the badge.
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
The category's pioneer, with ruggedized, weather-resistant builds and a Yeti-Ready ecosystem of coolers, lights and vehicle kits designed around the line.
Worth knowing
Goal Zero's own store listed every X-series model, the 6000X included, as out of stock when checked in September 2026, so buying one new means finding retailer stock. Its official community forums were also shut down recently.
Analyst note
Anker sells more inverter and more cycle life per dollar; Goal Zero sells heritage and a purpose-built accessory line at a premium. Both support records have slipped, so five years of warranty against two is the most concrete brand difference on this page.
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 6000X
EXPANDABLESupports Goal Zero expansion batteries, so you can add capacity later without replacing the base unit — useful if your needs may climb past 6,071Wh.
Accepts up to 600W of solar. Suitable for a 1-2 panel setup.
Adequate ports for most setups, but heavy users may want a power strip.
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, but the SOLIX F3800's higher solar ceiling (2,400W vs 600W) 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.
Anker SOLIX F3800
Field coverage is moderate and narrow: mostly two DIY Solar Forum threads, a couple of review sites our research flags as marketing-style, and no CPAP-specific or six-month-plus reportsA0. The one strong pattern is the solar input. Owners consistently describe it as hard to max out with anything but Anker's own, pricier panels, with a secondary charge controller as the workaroundA1A2A13A14. One owner still called it a great unit with that as the only real flawA14.
The rest are single voices. One owner runs everything through a transfer switch from a single 120V outlet, water pump includedA5. Another found the line cord running very hot when wall-charging at the full 1,800W and backed off to 600-800WA3, and one reported no pass-through on the 120V inputA4. Noise reads as quiet, with fans cycling in and outA11A12, plus brief buzzing during heavy AC start-up in an expansion-battery thread that Anker support put down to a vibrating ferrite beadA6A7. Support stories split: advance replacements for one ownerA9, silence for another after a large Solix spend, though that report may concern a sibling modelA8.
“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 6000X
The Yeti's ledger is thin, and none of it is long-term owner testimony: four entries from reviews and retailer pagesB0. What they agree on is the chemistry. The NMC pack is rated for 500 cycles to 80%, low against LFP rivals, and after those cycles the 6,071Wh pack behaves like roughly 4,857WhB1B4. They also describe a 106 lb, semi-stationary hub that ships with a roll cartB2 and takes 12 hours to refill on the included 600W chargerB3.
Nothing in the ledger speaks to fan noise, CPAP use or long-term reliability; what exists is reviewer spec commentaryB1B2B3B4. Treat the chemistry as the one well-supported finding and everything else as unknown.
“Weighs about 106 lbs — not portable for most people; designed as a semi-stationary power hub, and comes with a roll cart.”
Sources
poweredportablesolar.com · bestgeneratorsolar.com · shopsolarkits.com · bhphotovideo.com · poweraic.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]
- Large NMC capacity but a crippling 500-cycle rating, very heavy (~106 lbs), and slow charging are the recurring points. [Yeti 6000X · 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]
- A3
“if you charge the F3800 from a 120VAC wall outlet at full rate (1800 watts), the line cord gets very hot. I've backed off the charge rate to 600-800 watts.”
diysolarforum.com — 'Anker F3800 user reviews and opinions welcome' · 2024-07 · [negative]
- A4
“the lack of passthru mode, you cannot charge via the 120VAC input while discharging.”
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]
- A7
“Anker support told me it was a ferrite bead vibrating inside the unit... This reduced the noise, initially. At some point, I moved the batteries around and now the noise is gone.”
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]
- 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
“Uses lithium NMC cells with a 6,071Wh capacity but a cycle life of only 500 cycles to 80% — not high compared to competing LFP models.”
poweredportablesolar.com / bestgeneratorsolar.com — Yeti 6000X review · 2026 · [negative]
- B2
“Weighs about 106 lbs — not portable for most people; designed as a semi-stationary power hub, and comes with a roll cart.”
shopsolarkits.com / bhphotovideo.com — Yeti 6000X review · 2026 · [mixed]
- B3
“A 2,000W pure sine inverter peaking to 3,500W, fully rechargeable in 12 hours with the included 600W AC charger.”
bestgeneratorsolar.com / poweraic.com — Yeti 6000X review · 2026 · [mixed]
- B4
“After 500 cycles capacity drops to ~80%, so the 6,071Wh battery effectively becomes ~4,857Wh — a structural NMC disadvantage vs LFP.”
poweredportablesolar.com — Yeti 6000X review · 2026 · [negative]
Research compiled October 11, 2026.
Who Should Buy Which
Buy the SOLIX F3800 if you…
- →You're backing up a house through a transfer switch and want the well pump or a 240V circuit on it: the F3800 has two 240V outlets and 6,000W continuous, while the Yeti has no 240V outlet and a third of the wattage.
- →You'll cycle it hard, every storm season or as a daily solar battery: at twice a week, the F3800's 3,000-cycle rating runs 28.8 years against the Yeti's 4.8.
- →Your router, desktop or CPAP needs to ride through a grid drop untouched: only the F3800 lists a UPS switchover, at ≤20ms.
- →You have, or will buy, the panels to feed a 2,400W input. Budget for Anker's panels or a charge-controller workaround, since owners consistently find the input fussy with other arraysA1A2A13.
Buy the Yeti 6000X if you…
- →Your off-grid day runs past 3,264Wh usable, a van or cabin pulling Van Life Daily's 4,685Wh, and you want it in one box rather than an F3800 plus an expansion battery. Size with headroom, because the margin shrinks as the NMC pack wears toward 80%B4.
- →You're already invested in Goal Zero's Yeti-Ready coolers and vehicle kits, you can find retailer stock, and the 26.3 lb saving matters for where the unit gets mounted.
If neither fits
You want power at a campsite, a tailgate or anywhere you'd carry it to. At 132.3 and 106 lb these are dolly-and-garage units, and the same goes for a CPAP-only buyer whose 320Wh night uses a tenth of the F3800. Close the tab and shop the carry-handle mid-size class instead.
The Bottom Line
Buy the F3800. The Yeti's bigger tank is the only line it wins, and it pours that energy through an inverter a third the size, refills it at a quarter of the solar speed, and rates the battery for a sixth of the cycles, all for $1,800 more.
The buyer who should still take the Yeti runs a daily load past what the F3800 can hold and wants it in one box. Everyone else gets the bigger inverter, the faster refill and the longer-lived pack for less money. Go get the F3800, and bring a friend for the lift.
Frequently Asked Questions
Answers drawn from the spec record and cited owner research.
Is the Goal Zero Yeti 6000X worth the extra money over the Anker SOLIX F3800?
Only if your daily load runs past the F3800's 3,264Wh usable capacity, or your outages run for days with no way to recharge, and you want it all in one box rather than adding an expansion battery. Otherwise the extra money buys 2,231Wh of capacity behind a 2,000W inverter on a pack rated for 500 cycles, against the F3800's 6,000W and 3,000 cycles. Over their rated lives the F3800 delivers nearly four times the energy, and it's the cheaper unit.
Can the Anker SOLIX F3800 run 240V appliances like a well pump?
It has two 240V outlets and 6,000W of continuous output with a 9,000W surge, so it's built for that class of load; the Yeti 6000X has no 240V outlet and a 2,000W inverter. One owner runs everything on a transfer switch from a single 120V outlet, water pump included. Check your pump's own starting draw against that surge figure before you wire it in.
How many years will the Goal Zero Yeti 6000X battery last?
It's rated for 500 cycles: about 1.4 years of daily use, 4.8 years at twice a week, or 9.6 years at once a week. Reviews put that down to its NMC cells, rated to about 80% capacity after those 500 cycles. The F3800's 3,000-cycle rating stretches to about 8.2 years of daily use.
Which recharges faster on solar, the F3800 or the Yeti 6000X?
The F3800, by four times on paper: 2,400W of solar input against 600W. Owners consistently report that its input is fussy with non-Anker panels, so reaching the full rating can mean buying Anker's or adding a charge controller. Even at a quarter of its rating, it matches the Yeti running flat out.
Does the Goal Zero Yeti 6000X have a UPS mode?
Its spec sheet lists none, so anything plugged into it rides an outage only as far as your reaction time. The F3800 lists a UPS switchover of ≤20ms, fine for routers and most electronics. One owner reported no pass-through on the F3800's 120V input, so test the handover with your own gear before trusting a desktop or CPAP to it.
Related comparisons
Where to buy
Anker SOLIX F3800Pick
$2,199.99
typically $2,199.99 · check the store for today’s price
Last checked 11 days ago. Prices move — check before you buy.
Goal Zero Yeti 6000X
$3,999.95
$3,999.95 · direct from Goal Zero
Last checked 8 hours ago. Prices move — check before you buy.
Prices may vary by retailer and are subject to change.