Head-to-head test
Anker SOLIX F2000 vs Anker SOLIX F3800
Anker SOLIX F2000 vs Anker SOLIX F3800: Anker no longer sells the F2000, so buy the F3800 if you need home-scale capacity and surge, and look at the SOLIX C2000 Gen 2 if the F2000's size was what you wanted.
Full profiles: Anker SOLIX F2000 β Β· Anker SOLIX F3800 β
Written by Gunner GustafsonUpdated
Whole-Home Backup Tester, Station Arena Test Desk
Spec deltas
Anker has stopped selling the SOLIX F2000, so the only unit on this page you can buy new is the F3800. Does its size fit your house? If you wanted something closer to the F2000, the natural replacement is the SOLIX C2000 Gen 2.
The F3800 is a big step. It holds nearly twice the energy, and its inverter, the part that makes household AC, runs 6,000W continuous against the F2000's 2,400W. It has 240V outlets, which the F2000 never had. It also weighs almost double. I'd plan on a friend the day it arrives and leave it where it lands.
If you already own an F2000, it is still a good battery. Both are rated for 3,000 cycles, where a cycle is one full drain and refill. Owners say its wheels and telescoping handle are why it doesn't feel as heavy as it isA1.
What the Numbers Reveal
Each conclusion stated first β the numbers behind it on one line, the full analysis below.
Capacity
Over its rated life the F3800 is rated to deliver 11,520 kWh to the F2000's 6,144. That works out to $0.19 per lifetime kilowatt-hour.
F3800 capacity 3,840Wh vs F2000 2,048Wh: 1,792Wh moreBoth rated 3,000 cyclesF3800 $2,200; the F2000 is no longer sold
Why it mattersIf you don't need the energy, the C2000 Gen 2 is the size to look at.
continuous output
Motors like a well pump or a compressor fridge briefly pull two to three times their running draw when they start. Neither unit clears the usual 2x rule of thumb, so read these as two ceilings.
F2000 surges to 2,800W on a 2,400W continuous rating: 1.17xF3800 surges to 9,000W on a 6,000W continuous rating: 1.5x
Why it mattersIf the load that worries you has to start hard, compare its startup draw with each ceiling.
The specific dimensions that decide these two units β everything else is a tie.
Lifetime Value
Selected because: Both are rated for 3,000 cycles, and only the F3800 still carries a price, so lifetime value is a question of how much energy you need.
Both units are rated for 3,000 cycles, so both last about 8.2 years at one cycle a day. The F3800 moves more energy on each cycle. The F2000 shows no price here because Anker no longer sells it.
If I already owned an F2000, I wouldn't retire it for an F3800 on lifetime value. I'd buy the F3800 when the house needed more energy than the F2000 holds.
Your Life, Your Pick
Selected because: Six computed scenarios show where the extra 1,792Wh matters (blackout margin) and where it doesn't (CPAP), and van life exceeds both.
Line up the six scenarios and the F3800 wins mostly by margin. The camping weekend is the one pass-or-fail gap. The F2000 covers about 83% of it, and the F3800 has the energy but, at its weight, won't be coming to the campsite.
A CPAP night is background noise for both. A heavy van-life day is too much for either one alone. If your use is CPAP, remote work or a tailgate, an F2000-sized unit covers it. If you plan around multi-day outages, the F3800's room is what you're buying.
Portability & Form Factor
Selected because: 67.2 lbs vs 132.3 lbs is close to a 2x weight jump and a lived-with difference.
weight
The F2000 is 67.2 lbs, but owners credit its 4.72-inch wheels and retractable handle for making it feel lighter than it isA1. The F3800 is 132.3 lbs.
At that weight it is furniture. Pick its spot before it arrives, and get a second set of hands for the day it does.
What the Specs Don't Tell You
Selected because: Weight, surge and warranty fire, and the F3800's solar input draws owner complaints.
The surge card goes to the F3800, though neither unit clears the 2x rule of thumb for motor starts. If I were wiring an F3800 through a transfer switch at my place in the canyon, the deep-well pump is the load I'd check against its 9,000W ceiling first. One owner says it runs everything up to a water pump through a Reliance transfer switchB5.
The warranty card is a tie, five years on each. The F3800 has two quirks worth knowing. Owners call its solar input restrictive enough to steer them toward Anker's own pricier panelsB1B2B14. One owner also reports it can't charge from the wall while it powers your loadsB4.
Growth Path
Selected because: Both expand, but only the F3800 is still sold, and it takes 2,400W of solar to the F2000's 1,000W.
solar input
Both units take Anker expansion batteries, but growth only counts if you can still buy in. With the F2000 retired, the F3800 is the live foundation here. It takes 2,400W of solar to the F2000's 1,000W, so a growing bank can refill faster.
If you own an F2000, its expansion support still matters to you. For a new buyer it isn't a reason to go hunting for one.
Strengths & trade-offs
Anker SOLIX F2000
Strengths
- +Lighter by 65.1 lb
Trade-offs
- βWeaker inverter (-3,600W) limits appliance compatibility.
Anker SOLIX F3800
Strengths
- +Larger battery capacity
- +Higher AC output
- +Faster solar charging
Trade-offs
- βSignificantly heavier (+65.1 lbs), making it harder to move.
- βVery 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 Β· 2 nights Β· needs 2,100Wh
Weekend Camping
Two nights off-grid with essential comfort
Neither unit
A camping weekend needs about 2,100Wh. The F2000 covers about 83% of it and runs dry before the trip's loads are done. The F3800 has the energy, but at its weight it isn't coming to the campsite.
Battery budget usedlower = more headroom
LOADΒ Β Phone Charger 15WΓ6h Β· LED Lights 40WΓ8h Β· Box Fan 75WΓ14h Β· CPAP Machine 40WΓ16h
SCN-02 Β· 8 hours Β· needs 1,645Wh
8-Hour Blackout
Keep the essentials running through a night without power
SOLIX F3800
An 8-hour blackout draws about 1,645Wh. The F2000 covers it with almost nothing left, about 94% used. The F3800 finishes half full, with most of a second night in hand.
Battery budget usedlower = more headroom
LOADΒ Β Fridge 150WΓ8h Β· Router + Modem 20WΓ8h Β· LED Lights (4 bulbs) 40WΓ6h Β· Phone Charger 15WΓ3h
SCN-03 Β· 8 hours Β· needs 320Wh
CPAP Overnight
Sleep therapy without interruption β the #1 medical use case
Either unit
A CPAP night needs about 320Wh, 18% of the F2000 and 10% of the F3800. Anker publishes no noise figure for either. For a new buy the F3800 takes this by default, since it is the one still sold.
Battery budget usedlower = more headroom
LOADΒ Β CPAP Machine 40WΓ8h
SCN-04 Β· 8 hours Β· needs 910Wh
Remote Workday
Full work day off-grid without power anxiety
SOLIX F3800
A remote workday draws about 910Wh. The F2000 uses about half its usable capacity and the F3800 about 28%. Either finishes.
Battery budget usedlower = more headroom
LOADΒ Β Laptop 60WΓ8h Β· External Monitor 30WΓ8h Β· Router + Modem 20WΓ8h Β· Phone Charger 15WΓ2h
SCN-05 Β· 4 hours Β· needs 670Wh
Tailgate Party
Game day power for the crew
SOLIX F2000
A tailgate draws about 670Wh, 38% of the F2000. The F3800 has the energy too, but it isn't a take-along. This was the F2000's kind of job, and the C2000 Gen 2 is the live Anker to compare for it.
Battery budget usedlower = more headroom
LOADΒ Β Blender 400WΓ0.5h Β· LED TV (55") 80WΓ4h Β· Bluetooth Speaker 15WΓ4h Β· Phone Charger (Γ3) 45WΓ2h
SCN-06 Β· 24 hours Β· needs 4,685Wh
Van Life Daily
A full day of mobile living β the ultimate endurance test
Neither unit
A van-life day runs about 4,685Wh, more than either holds. The F2000 covers about 37% and the F3800 about 69%. Neither base unit is sized for full-time daily use.
Battery budget usedlower = more headroom
LOADΒ Β Mini-Fridge 150WΓ24h Β· Laptop 60WΓ4h Β· Phone Charger 15WΓ3h Β· LED Lights 40WΓ5h Β· Fan 75WΓ8h
The Load Test
RUNTIME = (Wh Γ 0.85) Γ· LOAD
None of the scenarios above exactly yours? Build it. Toggle what you'd plug in; both units are tested against the combined draw.
Essentials
Comfort & Convenience
High-Draw Appliances
Test duration
8h
Continuous draw
205W
Projected runtime
For this load: SOLIX F3800 runs 15.9h vs 8.5h.
$2,199.99 list Β· direct from Anker
Planning for more than this? Describe your whole setup and get it sizedΒ β
Modeled from the spec record β same math as the tables below. Methodology
Runtime by appliance
Real-world runtime estimates for common appliances, modeled at 85% inverter efficiency.ΒΉ
Essentials
The basics you need runningscale 0β217.6hComfort & Convenience
Makes off-grid life actually enjoyablescale 0β43.5hHigh-Draw Appliances
These reveal the real limitsscale 0β3.3hΒΉ Runtime = (capacity Γ 0.85) Γ· appliance watts. Within each group, all bars share one time scale (the group's longest runtime), so lengths are comparable across appliances; identical runtimes collapse into a single blue/orange bar. Actual runtime varies with battery age, temperature, and simultaneous loads β see methodology.
Conclusion
October 25, 2026
Verdict: the SOLIX F3800, on Power Score margin
Buy the F3800. Anker no longer sells the F2000, so the F3800 is the only live unit here. It holds nearly twice the energy, surges more than three times as high and takes more than twice the solar. It also weighs 132.3 lbs, so it is a box you place once and leave. Confidence is moderate because many F2000 shoppers wanted a 2kWh unit they could move by themselves. For them the natural replacement is the SOLIX C2000 Gen 2.
Editor-assigned confidence, based on cited owner research and spec analysis.
List prices as of October 25, 2026. The links below open Anker's current price.
$2,199.99 Β· direct from Anker
Last checked 28 days ago. Prices move β check before you buy.
Written by Gunner Gustafson, Whole-Home Backup Tester Β· Station Arena Test Desk Β· Updated October 25, 2026
Black Friday Β· 26 days out
Price to beat:SOLIX F3800 $1,980
The lowest we have recorded. A Black Friday price above it is a sale this unit has already had.
Measured Data
Benchmark scores and the full spec record, side by side.
Benchmark scores
Not rated for both units (minimum threshold unmet): UPS, Tailgating, Apartment Balcony.
Full specifications
α΅ Derived: price Γ· rated capacity. See the data behind our comparisons β
Comparison ToolAdd more power stations, side by sideOpen Tool βHow these numbers are produced
Numeric verification
Every figure on this page traces to our spec database or arithmetic on it β no estimated numbers.
Owner claims
Statements about owner experience are cited to published reviews β see Sources & Research Notes below.
Runtime model
Runtime = (rated capacity Γ 0.85 inverter efficiency) Γ· device wattage. Solar recharge estimates assume panels deliver 70% of rated output. Cold weather, battery age, and stacked loads reduce real-world results.
Power Score
Computed from 14 published spec dimensions, weighted per use-case bench. Higher is better; a unit must meet a bench's minimum threshold to be rated.
See the full weight table and data sourcing on our methodology page βClass ranking (the star rating)
Each unit's star score is a category ranking, not customer reviews β no buyer opinions feed it. We score every station on size-independent quality (value, output, portability, endurance, ports, warranty, and more), then percentile-rank it against the other units in its capacity class, so a class-leading compact unit and a class-leading whole-home unit can both earn 5β . Here, SOLIX F2000 rates 3.8/5 (30th percentile of 28 Large-class units), and SOLIX F3800 rates 4.5/5 (68th percentile of 20 Home Backup-class units).
How the class ranking is computed βTest Notes & Caveats
Hidden gotchas and advantages we spotted that you won't find on the product page.
A Different Weight Class
67.2 lbs against 132.3. The F3800 carries about 65 lbs more, close to a second F2000. Wheels and a handle made the F2000 a one-person move. The F3800 wants a second person.
Surge Ceiling Favors the F3800
The F2000 surges to 2,800W on 2,400W continuous. The F3800 surges to 9,000W on 6,000W. Neither clears the 2x rule of thumb for motor starts, so compare the startup draw of your heaviest motor with each ceiling.
Same Five Years
Both carry a 5-year warranty, so coverage isn't a tiebreaker. Only the F3800 is still sold new.
Full record above β the Test Desk pick is the SOLIX F3800.
Check SOLIX F3800 price βOwnership Analysis
What happens after you buy β true cost of ownership, brand trust, and growth potential.
Lifetime value
Service lifeyears at one full cycle per day
Lifetime energy delivered
Cost per delivered kWh
β warranty ends Β· Reaching the cycle rating means ~80% capacity remains β degraded, not dead.
Analyst note
The SOLIX F2000 is no longer sold, so there is no price to work its cost per kWh from, and this comparison doesn't quote one. On what you can actually buy today, the SOLIX F3800 works out at $0.19/kWh over its rated life. If you already own the SOLIX F2000, the hardware comparison still holds: over its rated life the SOLIX F2000 delivers about 6,144 kWh and the SOLIX F3800 about 11,520 kWh. One thing to know reading the table: both carry the same 3,000-cycle rating, so the lifetime rows are sticker price and capacity in disguise β the wear horizon is identical and decides nothing here.
Growth path
SOLIX F2000
EXPANDABLESupports Anker expansion batteries, so you can add capacity later without replacing the base unit β useful if your needs may climb past 2,048Wh.
Accepts up to 1,000W of solar. Enough for a serious multi-panel array.
Adequate ports for most setups, but heavy users may want a power strip.
Expansion batteries are Anker-specific. You're investing in the Anker ecosystem.
SOLIX F3800
EXPANDABLESupports Anker expansion batteries, so you can add capacity later without replacing the base unit β useful if your needs may climb past 3,840Wh.
Accepts up to 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.
Realistic full solar rechargeat 70% of rated panel output β see methodology
Analyst note
Growth only counts if you can still buy in, and the SOLIX F2000 is no longer sold (Anker points owners to the SOLIX C2000 Gen 2). That leaves the SOLIX F3800: it starts at 3,840Wh and takes Anker expansion batteries, so the ceiling moves if your needs do. The SOLIX F2000's expandability still matters if you already own one, but it isn't a reason to pick it over the SOLIX F3800.
What Owners Report
Patterns from published owner reports and long-term reviews β every claim cited to its source below.
Anker SOLIX F2000
Owners keep pointing at the same two things when they explain why the F2000 doesn't feel as heavy as it is: the wheels and the retractable EasyTow handleA1. Reviewers also say Anker often fixed problems on its own, with firmware updates or replacement unitsA2.
For the loads RVers run most, such as a fridge, a CPAP and lights, reviewers describe it as quiet and quick to set upA3. It uses LFP, a lithium chemistry known for long cycle lifeA4.
βIt's big and full of heavy batteries, but the durable 4.72-inch wheels and retractable EasyTow handle make it surprisingly easy to lug around β most positive reviews cite the wheels and telescoping handle as a top reason owners chose it over similar-spec competitors.β
Sources
rvoutfitting.com Β· trustedreviews.com Β· ankersolix.com Β· storagereview.com Β· generatorpeak.com
Anker SOLIX F3800
Field reports on the F3800 keep returning to one frustration. Several owners call the solar and DC input restrictive, enough to steer buyers toward Anker's own pricier panelsB1B2B13B14. Charging from a wall outlet at full rate runs the cord hot enough that one owner turned it downB3.
Support stories are mixed in the same threads. One owner says he was ghosted after a big purchase, though the researcher couldn't confirm which model he ownedB8. Another describes fast service and an advance replacementB9. Noise reports lean quiet, with fans that kick in and outB12 and a brief buzz on heavy starts that Anker support blamed on a vibrating partB6B7. None of the reports are CPAP-specific or run to six months of ownershipB0.
βI 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.β
Sources
diysolarforum.com Β· thesolarlab.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
- The wheels + retractable handle are the standout, repeatedly-cited reason owners pick the F2000; app monitoring and responsive Anker support are also praised. [SOLIX F2000 Β· 2 entries]
- Owners consistently complain that the solar/DC input is restrictive, effectively locking users into pricier Anker-branded panels rather than generic arrays. [SOLIX F3800 Β· 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 Β· 3 entries]
- Anker support experiences are polarized β some owners report fast, responsive replacements while at least one reports being ignored after a major purchase. [SOLIX F3800 Β· 3 entries]
- A1
βIt's big and full of heavy batteries, but the durable 4.72-inch wheels and retractable EasyTow handle make it surprisingly easy to lug around β most positive reviews cite the wheels and telescoping handle as a top reason owners chose it over similar-spec competitors.β
rvoutfitting.com / trustedreviews.com β Anker SOLIX F2000 (PowerHouse 767) review Β· 2025-2026 Β· [positive]
- A2
βWiFi and Bluetooth app lets you monitor battery, charging, and customize power usage; a meaningful number of owners reported Anker proactively solving issues with firmware updates or replacements.β
ankersolix.com / storagereview.com β F2000 review Β· 2025-2026 Β· [positive]
- A3
βFor the loads RVers run most β fridge, CPAP, lights, fans, internet, TV, small kitchen appliances β the F2000 is usually quiet, capable, and easy to deploy fast.β
rvoutfitting.com β Anker SOLIX F2000 review Β· 2026 Β· [positive]
- A4
βUses the same long-lasting LFP battery reliability as Anker's other models, rated over 3,000 cycles for years of off-grid or backup use.β
trustedreviews.com / generatorpeak.com β F2000 review Β· 2025-2026 Β· [positive]
- B1
βThe 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.β
diysolarforum.com β 'Anker F3800 user reviews and opinions welcome' Β· 2024-07 Β· [negative]
- B2
βThe 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.β
diysolarforum.com β 'Anker F3800 user reviews and opinions welcome' Β· 2024-07 Β· [negative]
- B3
βif 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.β
diysolarforum.com β 'Anker F3800 user reviews and opinions welcome' Β· 2024-07 Β· [negative]
- B4
βthe lack of passthru mode, you cannot charge via the 120VAC input while discharging.β
diysolarforum.com β 'Anker F3800 user reviews and opinions welcome' Β· 2024-07 Β· [negative]
- B5
βI 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.β
diysolarforum.com β 'Anker F3800 user reviews and opinions welcome' Β· 2024-07 Β· [positive]
- B6
βI 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.β
diysolarforum.com β 'Big issue with Anker Solix F3800 plus battery pack' Β· 2025-08 Β· [mixed]
- B7
βAnker 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.β
diysolarforum.com β 'Big issue with Anker Solix F3800 plus battery pack' Β· 2025-08 Β· [mixed]
- B8
βAnker 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.β
diysolarforum.com β 'Big issue with Anker Solix F3800 plus battery pack' Β· 2025-08 Β· [negative]
- B9
βI've called them and submitted tickets via their portal, always very responsive. They've even done advanced replacement for me.β
diysolarforum.com β 'Big issue with Anker Solix F3800 plus battery pack' Β· 2025-08 Β· [positive]
- B12
βSometimes the fans are completely silent, then they kick in and out intermittently.β
thesolarlab.com β 'Anker SOLIX F3800 Review: Did It Kill the Competition?' Β· unknown Β· [mixed]
- B13
βno 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.β
diysolarforum.com β 'Anker F3800 user reviews and opinions welcome' Β· 2024-07 Β· [negative]
- B14
βother than the solar input problem having limited panel array choices to max out it's input capability it's a great unit so far.β
diysolarforum.com β 'Anker F3800 user reviews and opinions welcome' Β· 2024-07 Β· [mixed]
Research compiled October 25, 2026.
What Owners Actually Report
Drawn from 103 comments on independent review channels β not from retailer reviews, which skew to the first week of ownership. Each line is our summary of one commenter's claim, linked to the original. We record what they said, including where it contradicts the spec sheet.
Anker SOLIX F2000
21 claims from 12 comments Β· 13 from owners Β· 3 with figures
- Price & value
- 6 Β· 10% negative
- Runtime
- 1 Β· 0% negative
- Solar input
- 3 Β· 100% negative
- Noise
- 2 Β· 0% negative
- Inverter & surge
- 1 Β· 0% negative
What owners complain about
The 60V solar charging limit is the main bummer holding it back.
Solar inputowner3 agreedsource β
Reconnecting grid power briefly shut down all AC outputs, so he returned it.
UPS switchoverowner1 agreedsource β
His two-year-old SOLIX F2000 died last week and cannot be owner-diagnosed or repaired.
Durabilityownerafter 24 months1 agreedsource β
What owners praise
Ordered the F2000 with three 400W panels, each piece over 30% off on Black Friday.
Price & valuemeasuredowner5 agreedsource β
With the expansion battery it ran a small fan for two days and powers a gaming setup 8-10 hours.
Runtimemeasuredowner3 agreedsource β
Runs anything in the 1-2400W range with roughly 3000W surge.
Inverter & surgeowner3 agreedsource β
Anker SOLIX F3800
137 claims from 91 comments Β· 76 from owners Β· 26 with figures
- Charging
- 19 Β· 46% negative
- Price & value
- 16 Β· 47% negative
- Runtime
- 8 Β· 15% negative
- Other
- 19 Β· 50% negative
- Expandability
- 12 Β· 36% negative
What owners complain about
Sarcastic about the $1600 price of each official expansion battery versus cheaper alternatives.
Price & valuemeasuredowner20 agreedsource β
A single Chargeverter only gives ~1200W due to the no-common-ground XT-60 DC inputs.
Chargingmeasuredowner12 agreedsource β
AC charging kills 240V and caps output to one bank at ~1200W of the 6000W inverter.
Inverter & surgemeasuredowner7 agreedsource β
What owners praise
Ran 2 fridges, 2 freezers, lights, pellet stove and Starlink for 6.5 hours using only 32%.
Runtimemeasuredowner61 agreedsource β
Recharged in 1 hour 15 minutes at just under 3000W from the grid.
Chargingmeasuredowner61 agreedsource β
Uses an F3800 for peak shaving on a 6c off-peak / 25c on-peak time-of-use plan.
Price & valueowner10 agreedsource β
Claims are weighted by how specific they are, whether the commenter owns the unit, and how many readers agreed. Comments that mention a product under a rival's review count for more, because the commenter had no reason to be there. This is what buyers report, not our test results β for measurements we ran ourselves, see the methodology.
Who Should Buy Which
Buy the SOLIX F2000 if youβ¦
- βOwners who already have one and run CPAP-to-tailgate loads: a CPAP night or a workday sits comfortably inside its 2,048Wh.
- βOwners who move it alone: the wheels and retractable handle are why reviewers call it manageable soloA1.
- βShoppers who wanted this size new should compare the SOLIX C2000 Gen 2, its natural replacement.
Buy the SOLIX F3800 if youβ¦
- βAnyone buying new: Anker no longer sells the F2000, and this is the live unit on the page.
- βHomes planning around long outages: it finishes an 8-hour blackout half full, with most of a second night in hand.
- βLoads that start hard: its 9,000W surge ceiling covers far more pumps and compressors than the F2000's. Budget for the trade-offs owners flag, a restrictive solar inputB1B2B13B14 and a wall-charge cord that runs hot at full rateB3.
If neither fits
Skip both if your daily draw looks like van life's roughly 4,685Wh. That is more than either holds in one charge. That buyer needs an expansion battery from day one, several units, or a stationary solar-plus-battery setup.
The Bottom Line
The F2000 has left Anker's range, so the F3800 is the one you can buy here. It holds nearly twice the energy, has 240V outlets, and its surge ceiling covers far more hard-starting motors. The cost is weight. At 132.3 lbs it stays where you put it.
If the F3800's scale fits your house, buy it. If you came here wanting an F2000-sized unit you can move alone, compare the SOLIX C2000 Gen 2 instead. If you already own an F2000, keep using it.
Frequently Asked Questions
Answers drawn from the spec record and cited owner research.
Is the Anker SOLIX F3800 just a bigger F2000, or a different tier of unit?
A different tier. It holds 3,840Wh against 2,048Wh, runs 6,000W continuous against 2,400W, surges to 9,000W against 2,800W, and adds 240V outlets. It also weighs 132.3 lbs against 67.2. Anker no longer sells the F2000; its natural replacement is the SOLIX C2000 Gen 2.
Which one is cheaper to own over its lifetime?
Only the F3800 is still sold, so it is the only one with a price here, at $0.19 per lifetime kWh. Both are rated for 3,000 cycles. The F3800 delivers more energy per cycle because its pack is bigger.
Can either of these actually run a CPAP all night?
Yes, easily. An overnight CPAP run needs roughly 320Wh, which uses about 18% of the F2000's usable capacity and about 10% of the F3800's. For this use case alone, capacity doesn't separate them.
How much heavier is the F3800, really?
132.3 lbs against the F2000's 67.2, 65.1 lbs more, just under double. The F2000 ships with wheels and a retractable handle that owners cite as the reason it doesn't feel as heavy as its spec sheet suggests.
Is the F3800's solar charging actually a problem?
It's the most consistent complaint in the field reports. Several owners describe the solar and DC input as restrictive enough that it pushes buyers toward Anker's own, pricier panels rather than a generic array. It accepts 2,400W of solar on paper, 2.4x the F2000's 1,000W. Check how close other panels get to that figure before you buy any.
Related comparisons
Where to buy
Anker SOLIX F2000
No longer sold
Anker SOLIX F3800Pick
$2,199.99
$2,199.99 Β· direct from Anker
Last checked 28 days ago. Prices move β check before you buy.
Prices may vary by retailer and are subject to change.