Anker SOLIX C800 X
- AC delivered · measured
580 Wh. Show source
verified source~580 Wh extracted at 1200W over 29 min (Trusted Reviews)2026-07-04- output
1,200 W. Show source
claimed sourceankersolix.com ↗- surge
1,600 W. Show source
claimed sourceankersolix.com ↗- weight
10.9 kg. Show source
claimed sourceankersolix.com ↗- recharge
58 min. Show source
claimed sourceankersolix.com ↗
Balanced
#2 of 9
in the Compact class · small class (n=9)
Lifted by Trust & reliability and Charging & solar; held back by portability.
Check current availability and pricing at the retailer.
Check price on AmazonSee alternatives to the Anker SOLIX C800 X →At a glance
Anker SOLIX C800 X is a compact model best suited to camper. It supplies 1,200 W of continuous AC output. BatteryRank scores it 63 out of 100 within its size class.
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.
768 Wh. Show source
claimed sourceankersolix.com ↗2026-07-04The marketing number — total cell capacity.
580 Wh. Show source
verified source~580 Wh extracted at 1200W over 29 min (Trusted Reviews)2026-07-04~580 Wh extracted at 1200W over 29 min (Trusted Reviews) · 24% below the label
Also independently measured
- AC inverter efficiency
77.1 %. Show source
verified source~77.1% AC round-trip / ~78.3% USB round-trip; up to 90.2% AC charging (Trusted Reviews)2026-07-04- AC charge time
58 min. Show source
verified source~58 min UltraFast / ~90 min default (Trusted Reviews)2026-07-04- Solar performance
—. Show source
verified sourceSurgePad boiled an 1,800W kettle by regulating voltage/current (Trusted Reviews)2026-07-04
~77.1% AC round-trip / ~78.3% USB round-trip; up to 90.2% AC charging (Trusted Reviews)
~58 min UltraFast / ~90 min default (Trusted Reviews)
SurgePad boiled an 1,800W kettle by regulating voltage/current (Trusted Reviews)
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 8.1 nights | 9 W · |
| CPAP (heated humidifier on) | about 1.3 nights | 56 W · |
| Refrigerator (full-size) | about 9.2 hours | 180 W × 35% duty cycle · |
| Wi-Fi router + modem | about 32 hours | 18 W · |
| Laptop (65W charger) | about 18 hours | 65 W × 50% duty cycle · |
| Phone (one full charge) | about 29 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.
10.9 kg with 300 W solar input → carry-in, solar-rechargeable
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
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
768 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 ↗- Rated capacity
768 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 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
1,200 W. Show source
claimed sourceankersolix.com ↗- Surge power output
1,600 W. Show source
claimed sourceankersolix.com ↗- AC outlets
5 outlets. Show source
claimed sourceankersolix.com ↗- USB-A ports
2 ports. Show source
claimed sourceankersolix.com ↗- USB-C ports
2 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
1,200 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
1,100 W. Show source
claimed sourceankersolix.com ↗- AC charge time (0–100%)
58 min. Show source
claimed sourceankersolix.com ↗- Max solar input
300 W. Show source
claimed sourceankersolix.com ↗
How fast the unit recharges from a wall outlet — higher means shorter waits between uses.
How long a full recharge takes from a wall outlet, start to finish.
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
10.9 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.
- Standout built-in camping-light system (dual retractable lights) — Across reviewers ·
- good port array (5 AC, 100W USB-C) — Across reviewers ·
- solid app control — Across reviewers ·
- fast UltraFast AC charge (~58 min) — Across reviewers ·
- durable LFP + 5-yr warranty — Across reviewers ·
- 1,200W ceiling limits high-draw appliances — Across reviewers ·
- ~24 lb heavy for capacity — Across reviewers ·
- solar capped at 300W — Across reviewers ·
- AC efficiency trails newer C1000 — Across reviewers ·
- Wirecutter: not a current pick / blocked to fetch
- Popular Mechanics: no dedicated review found / blocked
- None confirmed this pass — measurement-channel videos not retrievable via fetch — YouTube reviewers ·
Brand reputation: Reddit/forum sentiment not retrievable this pass; Anker brand reputation strong; no model-specific station reliability concerns surfaced
Sources: Trusted Reviews 4/5 https://www.trustedreviews.com/reviews/anker-solix-c800-plus; Make Use Of / How-To Geek 9/10 https://www.makeuseof.com/anker-solix-c800-plus-review/; CNET blocked; Tom's Guide none; PCMag blocked; OutdoorGearLab none; Popular Mechanics none; TechRadar none; Wirecutter blocked; YouTube not retrievable; Reddit not retrievable; CPSC empty for SOLIX (2026-07-04) | 2026-07-05 C800X pass: model verified live on Amazon /dp/B0C5CBDX2P (4.6/123, BSR #136 Outdoor Generators) and ankersolix.com C800X bundle page b1755112; measured figures retained from C800 Plus (same hardware).
What else to consider instead of the Anker SOLIX C800 X
Same or adjacent size class, ordered by the price-independent composite. Every alternative is better than the Anker SOLIX C800 X 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.
- Bluetti AC70score 71 · same size class
- Why you would switch
- The Bluetti AC70 delivers 13% more usable AC energy (653 Wh vs 580 Wh).
- What you give up
- The Anker SOLIX C800 X carries 20% more continuous output (1,200 W vs 1,000 W), which decides what it can run at all.
- EcoFlow RIVER 2 Pro (700)score 60 · same size class
- Why you would switch
- The EcoFlow RIVER 2 Pro (700) is 28% lighter (7.8 kg vs 10.9 kg).
- What you give up
- The Anker SOLIX C800 X carries 50% more continuous output (1,200 W vs 800 W), which decides what it can run at all.
- Dabbsson 600Lscore 55 · same size class
- Why you would switch
- The Dabbsson 600L delivers 13% more usable AC energy (653 Wh vs 580 Wh).
- What you give up
- The Anker SOLIX C800 X carries 100% more continuous output (1,200 W vs 600 W), which decides what it can run at all.
- Jackery Explorer 600 v2score 52 · same size class
- Why you would switch
- The Jackery Explorer 600 v2 is 41% lighter (6.4 kg vs 10.9 kg).
- What you give up
- The Anker SOLIX C800 X carries 140% more continuous output (1,200 W vs 500 W), which decides what it can run at all.
- EcoFlow RIVER 2 Max 500score 48 · same size class
- Why you would switch
- The EcoFlow RIVER 2 Max 500 is 44% lighter (6.1 kg vs 10.9 kg).
- What you give up
- The Anker SOLIX C800 X delivers 33% more usable AC energy (580 Wh vs 435 Wh).
Quick answers
Each answer restates a sourced figure from elsewhere on this page — nothing new, nothing guessed.
- How much does the Anker SOLIX C800 X weigh?
- 10.9 kg (24 lb), manufacturer-claimed, without accessories.
- What are the dimensions of the Anker SOLIX C800 X?
- 371 × 205 × 253 mm (14.6 × 8.1 × 10 in), length × width × height, manufacturer-claimed.
- How much capacity does the Anker SOLIX C800 X deliver through an AC outlet?
- About 580 Wh of the rated 768 Wh reaches an AC outlet from a full charge — measured in independent testing.
- How long does the Anker SOLIX C800 X take to charge?
- 58 min from a wall outlet, 0 to 100%, manufacturer-claimed. Fast-charge modes and solar input differ — see the charging specs on this page.
- How many watts can the Anker SOLIX C800 X output?
- 1,200 W continuous AC output and 1,600 W surge output, manufacturer-claimed. Appliance startup demand must stay within the relevant limit.
- How much solar input can the Anker SOLIX C800 X accept?
- 300 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 C800 X?
- 3,000 cycles to 80% remaining capacity, manufacturer-claimed. A cycle rating is not a calendar-life guarantee.
- Can the Anker SOLIX C800 X 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.