Anker SOLIX F3800 Plus
- AC delivered · est.
3,264 Wh. Show source
estimated sourceankersolix.com ↗2026-07-04- output
6,000 W. Show source
claimed sourceankersolix.com ↗- surge
9,000 W. Show source
claimed sourceankersolix.com ↗- weight
62 kg. Show source
claimed sourceankersolix.com ↗
Balanced
#4 of 13
in the XL / home-backup class
Lifted by Output & versatility and Capacity & expansion; held back by portability.
Check current availability and pricing at the retailer.
Check price on AmazonSee alternatives to the Anker SOLIX F3800 Plus →At a glance
Anker SOLIX F3800 Plus is a xl / home-backup model best suited to cpap traveler. It supplies 6,000 W of continuous AC output. BatteryRank scores it 65 out of 100 within its size class.
Our verdict on the Anker SOLIX F3800 Plus
The outlet count is what separates this from everything near it: 9 AC sockets, roughly double the class norm, fed by a 6,000 W continuous inverter and a 9,000 W surge ceiling. With 3,840 Wh and 240 V split-phase support it is a serious backup machine, and at 62 kg it stays where you put it. The 3,200 W solar input is the other strong number, making it one of the few units where array charging is a primary path rather than a supplement.
- You are running many circuits at once during an outage9 AC sockets against a 6,000 W budget means you can distribute a whole household's essential loads without a single power strip.
- A 240 V load is central to your planSplit-phase output backed by 6,000 W continuous is enough for a well pump or a dryer circuit rather than merely being technically present.
- You want to charge from a real arrayA 3,200 W solar ceiling returns the full 3,840 Wh in a little over an hour of ideal output, which makes daily solar cycling realistic.
- The unit may need to be repositioned by one person62 kg puts it firmly in the two-person or wheeled category, and unlike the 41.5 kg tier there is no realistic single-handed move. The F3000 delivers 3,072 Wh at 41.5 kg rather than 62 kg.
- You are planning for outages measured in days, not hours3,840 Wh covers about a day of essential household load; extending past that needs more storage rather than the 6,000 W of output this already has. The DELTA Pro Ultra holds 6,144 Wh against 3,840 Wh here.
The honest limit: Nine outlets is a real advantage and it is the thing this unit is sold on, but outlets do not multiply energy. All nine draw from the same 3,840 Wh, so filling them simply empties the pack faster. The socket count solves a distribution problem, not a capacity one, and buyers consistently read a crowded front panel as implying more endurance than it does.
What our data can’t tell you: We hold no wall-recharge time for this model, so its grid recovery pacing is unknown despite solar input being well documented. Noise, dimensions and the expansion ceiling are unsourced. The missing recharge figure is the notable one, because a 3,840 Wh pack refilled slowly behaves very differently across a multi-day event.
BatteryRank Engineering Team · Last reviewed · Method
Capacity truth
The watt-hour number on the box isn't what reaches your devices. Rated on the label vs what actually leaves an outlet.
3,840 Wh. Show source
claimed sourceankersolix.com ↗2026-07-04The marketing number — total cell capacity.
3,264 Wh. Show source
estimated sourceestimate = battery-side usable capacity × 85% inverter efficiencyWhat reaches an AC outlet — about 15% is lost turning battery power into household AC. How we estimate.
What it can run
Same sourced device assumptions used by our calculators, applied to this model's usable AC energy. Actual runtime varies with load, temperature, and standby draw.
| Device | Estimated runtime | Sourced assumption |
|---|---|---|
| CPAP (humidifier off) | about 45.3 nights | 9 W · |
| CPAP (heated humidifier on) | about 7.3 nights | 56 W · |
| Refrigerator (full-size) | about 52 hours | 180 W × 35% duty cycle · |
| Wi-Fi router + modem | about 181 hours | 18 W · |
| Laptop (65W charger) | about 100 hours | 65 W × 50% duty cycle · |
| Phone (one full charge) | about 163 full charges | 20 W · |
Who it fits
Mechanical matches against this model's own sourced specs — never invented sentiment, never a guess on a spec we don't have.
3264 Wh AC-delivered (est.) → multiple CPAP nights per charge
6000 W inverter, 3264 Wh AC-delivered (est.) → runs a fridge through an outage
3840 Wh, expandable, 12V DC out → long off-grid stays
How it scores
Four buyer pillars over seven sub-scores — computed from sourced data with a published formula, price-independent by design.
Power
Battery-side usable capacity and how much you can run at once.
Usable watt-hours and how far you can grow it with add-on batteries, versus its size class.
Continuous and surge wattage, outlet count, and USB-C fast-charging.
Trust
Owner reputation, safety record, warranty, and build durability.
Owner ratings, brand reputation, recall record, and warranty backing.
Rated cycle life, warranty length, cell chemistry, and weather sealing.
Charging
est.Wall and solar recharge speed.
Wall recharge speed, solar input, and multi-source charging.
Livability
62% dataLightweight, portable, and quiet enough to live with.
Weight, footprint, handle, and wheels, versus its size class.
Fan noise under load — quieter is better for bedrooms and CPAP use.
How this score is computed
The BatteryRank score is computed from sourced data with a published formula — ranked by data, not lab testing. Seven sub-scores blend into a 0–100 composite, grouped into four buyer pillars. Price is deliberately not a scoring input: prices move daily, so value intelligence lives in the price section above, judged against this model's own history.
| Pillar | Built from |
|---|---|
| Power | Capacity & expansion + Output & versatility |
| Trust | Trust & reliability + Durability & longevity |
| Charging | Charging & solar |
| Livability | Portability + Quiet / livability |
Scores are cohort-relative — each model is ranked against others in its size class. Missing inputs renormalize out rather than scoring zero (a model is never penalized for a spec nobody in its class publishes), and any figure resting on a documented estimate is tagged est. A full methodology page is coming.
Full specifications
Manufacturer-claimed unless marked verified (FCC/UL/DOE/lab). Tap or focus a figure to view its source.
Capacity & battery
- Battery-side usable capacity
3,840 Wh. Show source
claimed sourceankersolix.com ↗- Rated cycle life
3,000 cycles. Show source
claimed sourceankersolix.com ↗- Battery chemistry
LiFePO4. Show source
claimed sourceankersolix.com ↗- Max capacity with expansion
26,880 Wh. Show source
claimed sourceankersolix.com ↗- Rated capacity
3,840 Wh. Show source
claimed sourceankersolix.com ↗- Cycle-life threshold
80 %. Show source
claimed sourceankersolix.com ↗
Energy available from the battery before output-conversion losses. AC-delivered capacity is shown separately in Capacity Truth.
How many full charge-and-drain cycles before the battery drops to its rated threshold (shown alongside — brands rate to different thresholds, so never compare bare cycle counts).
The type of battery cell. LiFePO4 (LFP) cells last far more cycles and are more thermally stable than older lithium-ion (NMC) cells.
The largest total capacity this unit can reach once you add every supported expansion battery.
The battery's nameplate energy capacity — the headline number on the box. Battery-side usable and AC-delivered capacity are shown separately.
The remaining-capacity level the cycle rating is measured to. 3,000 cycles to 80% is a stronger battery than 3,000 cycles to 70% — always read the two numbers together.
Power output
- Continuous power output
6,000 W. Show source
claimed sourceankersolix.com ↗- Surge power output
9,000 W. Show source
claimed sourceankersolix.com ↗- AC outlets
9 outlets. Show source
claimed sourceankersolix.com ↗- USB-A ports
2 ports. Show source
claimed sourceankersolix.com ↗- USB-C ports
3 ports. Show source
claimed sourceankersolix.com ↗- USB-C max output
100 W. Show source
claimed sourceankersolix.com ↗- 12V car ports
1 ports. Show source
claimed sourceankersolix.com ↗- DC barrel ports
0 ports. Show source
claimed sourceankersolix.com ↗- Max combined output
6,000 W. Show source
claimed sourceankersolix.com ↗
The most power you can draw at once, sustained — this has to be higher than the running wattage of whatever you're plugging in.
A brief power spike the unit can absorb when a device first switches on — matters for things with motors or compressors, like fridges.
How many standard wall-style outlets are built in.
How many USB-A ports are built in, for charging older phones, lights, and accessories.
How many USB-C ports are built in — check the per-port wattage below if you need fast charging for a laptop.
The fastest a single USB-C port can charge a device — relevant for laptops and fast-charging phones.
How many car-socket (cigarette-lighter) style 12V outputs are built in — what CPAPs and car fridges plug into for the most efficient overnight running.
How many round barrel-style DC outputs are built in, used by routers, some lights, and older electronics.
The most power the unit can deliver across ALL ports at the same time — can be lower than the AC rating plus every USB port added up.
Charging & solar
- AC recharge speed
1,800 W. Show source
claimed sourceankersolix.com ↗- Max solar input
3,200 W. Show source
claimed sourceankersolix.com ↗
How fast the unit recharges from a wall outlet — higher means shorter waits between uses.
The most solar panel wattage the unit can accept — undersized panels just mean slower charging, not damage, but oversizing this is wasted money.
Reliability & durability
- UPS switchover time
20 ms. Show source
claimed sourceankersolix.com ↗
How fast the unit takes over when grid power cuts out. Under ~20ms is fast enough that most electronics — including many CPAP machines — won't even blip.
Size & portability
- Weight
62 kg. Show source
claimed sourceankersolix.com ↗
How much the unit weighs on its own, without accessories — relevant for portability and carrying it up stairs during an outage.
What reviewers & owners report
Named outlets and marketplaces, each rating credited where it was published.
- Upgrades over F3800: generator bypass (AC coupling), 3,200W higher-voltage solar, 6kW AC input — Across reviewers ·
- same 6kW 120/240V split-phase + modular to 53kWh — Across reviewers ·
- whole-home ready — Across reviewers ·
- New 2025 model with little independent testing yet — Across reviewers ·
- very expensive — Across reviewers ·
- heavy (~137 lb) — Across reviewers ·
- overkill for portable use — Across reviewers ·
- Wirecutter: not a current pick / blocked to fetch
- Popular Mechanics: no dedicated review found
- None accessible this pass — 2025 model, coverage still emerging — YouTube reviewers ·
Brand reputation: Too new (2025) for meaningful third-party reliability data; inherits F3800 platform + Anker LFP track record; no recalls
Sources: No accessible independent review located this pass (2025 model) — CNET blocked; Tom's Guide 404; PCMag blocked; OutdoorGearLab none; Popular Mechanics blocked; TechRadar 404; Trusted Reviews 404; Wirecutter blocked; Engadget 404; YouTube not retrievable; Reddit not retrievable; CPSC empty for SOLIX (2026-07-04)
What else to consider instead of the Anker SOLIX F3800 Plus
Same or adjacent size class, ordered by the price-independent composite. Every alternative is better than the Anker SOLIX F3800 Plus at something and worse at something else, so each row states both halves — each one arithmetic on two sourced readings, with a dimension skipped rather than guessed when either side is missing a figure.
- EcoFlow DELTA Pro 3score 76 · same size class
- Why you would switch
- The EcoFlow DELTA Pro 3 delivers 16% more usable AC energy (3,790 Wh vs 3,264 Wh).
- What you give up
- The Anker SOLIX F3800 Plus carries 50% more continuous output (6,000 W vs 4,000 W), which decides what it can run at all.
- Bluetti Apex 300score 71 · same size class
- Why you would switch
- The Bluetti Apex 300 is 39% lighter (38 kg vs 62 kg).
- What you give up
- The Anker SOLIX F3800 Plus delivers 27% more usable AC energy (3,264 Wh vs 2,565 Wh).
- Jackery HomePower 3600 Plusscore 66 · same size class
- Why you would switch
- The Jackery HomePower 3600 Plus is 44% lighter (35 kg vs 62 kg).
- What you give up
- The Anker SOLIX F3800 Plus carries 67% more continuous output (6,000 W vs 3,600 W), which decides what it can run at all.
- Anker SOLIX F3800score 62 · same size class
- Why you would switch
- Nothing in the sourced data separates it from the Anker SOLIX F3800 Plus by a margin worth acting on.
- What you give up
- The Anker SOLIX F3800 Plus takes 33% more rated solar input (3,200 W vs 2,400 W) for off-grid recharging.
- Pecron E3600LFPscore 61 · same size class
- Why you would switch
- The Pecron E3600LFP is 42% lighter (36 kg vs 62 kg).
- What you give up
- The Anker SOLIX F3800 Plus delivers 25% more usable AC energy (3,264 Wh vs 2,611 Wh).
Quick answers
Each answer restates a sourced figure from elsewhere on this page — nothing new, nothing guessed.
- How much does the Anker SOLIX F3800 Plus weigh?
- 62 kg (136.7 lb), manufacturer-claimed, without accessories.
- What are the dimensions of the Anker SOLIX F3800 Plus?
- 701 × 389 × 396 mm (27.6 × 15.3 × 15.6 in), length × width × height, manufacturer-claimed.
- How much capacity does the Anker SOLIX F3800 Plus deliver through an AC outlet?
- About 3,264 Wh of the rated 3,840 Wh reaches an AC outlet from a full charge — an estimate after our published 15% inverter-loss constant (marked est. on this page).
- How many watts can the Anker SOLIX F3800 Plus output?
- 6,000 W continuous AC output and 9,000 W surge output, manufacturer-claimed. Appliance startup demand must stay within the relevant limit.
- How much solar input can the Anker SOLIX F3800 Plus accept?
- 3,200 W maximum solar input, manufacturer-claimed. Actual harvest depends on panel compatibility, sun, orientation, temperature, and conversion losses.
- What is the cycle-life rating of the Anker SOLIX F3800 Plus?
- 3,000 cycles to 80% remaining capacity, manufacturer-claimed. A cycle rating is not a calendar-life guarantee.
- Can the Anker SOLIX F3800 Plus work as a UPS?
- Its manufacturer-claimed transfer time is 20 ms. Confirm that your connected equipment tolerates that transfer time; this is not the same as a zero-transfer online UPS.
- How far can the Anker SOLIX F3800 Plus expand?
- Up to 26,880 Wh with compatible expansion hardware, manufacturer-claimed. The base-unit capacity and expansion-system capacity are shown separately.
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