Anker SOLIX C1000
- AC delivered · measured
860 Wh. Show source
verified source~860 Wh usable (~81% of 1,056 Wh rated) (OutdoorGearLab)2026-07-04- output
1,800 W. Show source
claimed sourceankersolix.com ↗- surge
2,400 W. Show source
claimed sourceankersolix.com ↗- weight
12.9 kg. Show source
claimed sourceankersolix.com ↗- recharge
58 min. Show source
claimed sourceankersolix.com ↗
Balanced
#10 of 19
in the Midsize (1 kWh class) class
Lifted by Trust & reliability and Capacity & expansion; held back by portability.
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Anker SOLIX C1000 is a midsize (1 kwh class) model best suited to camper. It supplies 1,800 W of continuous AC output. BatteryRank scores it 60 out of 100 within its size class.
Our verdict on the Anker SOLIX C1000
This is the model where our own catalogue records the widest gap between the box and the bench. OutdoorGearLab drew roughly 860 Wh out of a 1,056 Wh nameplate — about 81 percent, the lowest verified delivery ratio anywhere in our data. Read the 1,056 Wh as a cell rating rather than a promise, budget nearer 860 Wh of real work, and the 1,800 W inverter and 58-minute recharge still make it a capable unit. It has since been succeeded, which matters more than the gap does.
- You want to grow capacity later without replacing what you ownIt takes an expansion battery to 2,112 Wh, doubling the pack. The Gen 2 that replaced it dropped that port entirely, so this generation is the expandable one.
- You need a lot of things plugged in at onceSix AC outlets is more than most 1 kWh units carry, and they share an 1,800 W budget that realistically covers a fridge plus several small loads at the same time.
- You are buying new today rather than finding old stockThe Gen 2 supersedes this unit on the numbers that age worst: 4,000 rated cycles against 3,000 here, and a 10 ms UPS switchover against 20 ms. Same family, 2,000 W continuous and a 49-minute recharge.
- You plan to carry it further than from the car to the campsiteAt 12.9 kg this is a two-hand lift, and nothing about the 1,056 Wh pack is designed to be moved often. The C300 is 4.1 kg and still carries a 300 W pure sine inverter.
The honest limit: The 1,056 Wh headline is the number Anker sells on and the one figure independent testing disputes most sharply. An 81 percent delivery ratio is not a defect — conversion losses are real on every unit here — but it is measurably worse than the 92 percent OutdoorGearLab recorded on a DELTA Pro 3, and nobody discloses that on a spec sheet.
What our data can’t tell you: One outlet measured this, and it did not publish the load it tested at. Delivery ratio moves with draw, so we cannot tell you whether 81 percent describes a heavy test or a genuinely lossy inverter. We also hold no independent noise figure for it, so the acoustic behaviour under load is unknown to us.
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.
1,056 Wh. Show source
claimed sourceankersolix.com ↗2026-07-04The marketing number — total cell capacity.
860 Wh. Show source
verified source~860 Wh usable (~81% of 1,056 Wh rated) (OutdoorGearLab)2026-07-04~860 Wh usable (~81% of 1,056 Wh rated) (OutdoorGearLab) · 19% below the label
Also independently measured
- AC inverter efficiency
81 %. Show source
verified source~81% (OutdoorGearLab, capacity-vs-rated)2026-07-04- Fan noise
50 dB. Show source
verified source~50 dB @3ft while charging (OffGridBenchmark)2026-07-04- AC charge time
65–88 min. Show source
verified source~65-88 min full (OutdoorGearLab, mode-dependent)2026-07-04
~81% (OutdoorGearLab, capacity-vs-rated)
~50 dB @3ft while charging (OffGridBenchmark)
~65-88 min full (OutdoorGearLab, mode-dependent)
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 11.9 nights | 9 W · |
| CPAP (heated humidifier on) | about 1.9 nights | 56 W · |
| Refrigerator (full-size) | about 14 hours | 180 W × 35% duty cycle · |
| Wi-Fi router + modem | about 48 hours | 18 W · |
| Laptop (65W charger) | about 26 hours | 65 W × 50% duty cycle · |
| Phone (one full charge) | about 43 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.
12.9 kg with 600 W solar input → carry-in, solar-rechargeable
860 Wh AC-delivered (measured) → multiple CPAP nights per charge
1800 W inverter, 860 Wh AC-delivered (measured) → runs a fridge through an outage
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
Lightweight, 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
1,056 Wh. Show source
claimed sourcecdn.solarpowersupply.eu ↗- Rated cycle life
3,000 cycles. Show source
claimed sourcecdn.solarpowersupply.eu ↗- Battery chemistry
LiFePO4. Show source
claimed sourceankersolix.com ↗- Max capacity with expansion
2,112 Wh. Show source
claimed sourceankersolix.com ↗- Rated capacity
1,056 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
1,800 W. Show source
claimed sourceankersolix.com ↗- Surge power output
2,400 W. Show source
claimed sourceankersolix.com ↗- AC outlets
6 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
1,800 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
1,300 W. Show source
claimed sourceankersolix.com ↗- AC charge time (0–100%)
58 min. Show source
claimed sourceankersolix.com ↗- Max solar input
600 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
12.9 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.
- Well-balanced mid-size (fast ~58 min AC charge, 6 AC outlets, 11 ports) — Across reviewers ·
- strong app control + scheduling — Across reviewers ·
- expandable to 2,112 Wh — Across reviewers ·
- excellent value — Across reviewers ·
- 5-yr warranty — Across reviewers ·
- Audible fan under load (top complaint) — Across reviewers ·
- measured usable capacity ~81% of rating — Across reviewers ·
- superseded by C1000 Gen 2 which reviewers now prefer — 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 ·
- C1000 is widely covered but content blocked — YouTube reviewers ·
Brand reputation: OutdoorGearLab calls it among the best mid-size stations; no failure patterns documented; fan noise the main real-world gripe (Reddit not retrievable this pass)
Sources: OutdoorGearLab 66/100 (Editors' Choice) https://www.outdoorgearlab.com/reviews/anker-solix-c1000; CNET blocked; Tom's Guide none; PCMag blocked; Popular Mechanics none; TechRadar none; Trusted Reviews none; Wirecutter blocked; YouTube not retrievable; Reddit not retrievable; CPSC empty for SOLIX (2026-07-04)
What else to consider instead of the Anker SOLIX C1000
Same or adjacent size class, ordered by the price-independent composite. Every alternative is better than the Anker SOLIX C1000 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 3 Plusscore 72 · same size class
- Why you would switch
- The EcoFlow DELTA 3 Plus takes 67% more rated solar input (1,000 W vs 600 W) for off-grid recharging.
- What you give up
- Nothing the sourced data can show — the Anker SOLIX C1000 leads on no compared dimension by a margin worth acting on.
- DJI Power 1000 V2score 71 · same size class
- Why you would switch
- The DJI Power 1000 V2 carries 44% more continuous output (2,600 W vs 1,800 W), which decides what it can run at all.
- What you give up
- Nothing the sourced data can show — the Anker SOLIX C1000 leads on no compared dimension by a margin worth acting on.
- Anker SOLIX C1000 Gen 2score 68 · same size class
- Why you would switch
- The Anker SOLIX C1000 Gen 2 carries 11% more continuous output (2,000 W vs 1,800 W), which decides what it can run at all.
- What you give up
- The Anker SOLIX C1000 supports add-on batteries, so capacity can grow later.
- EcoFlow DELTA 3score 68 · same size class
- Why you would switch
- The EcoFlow DELTA 3 is rated for 4,000 cycles against 3,000.
- What you give up
- Nothing the sourced data can show — the Anker SOLIX C1000 leads on no compared dimension by a margin worth acting on.
- Bluetti Elite 100 v2score 67 · same size class
- Why you would switch
- The Bluetti Elite 100 v2 delivers 16% more usable AC energy (1,000 Wh vs 860 Wh).
- What you give up
- The Anker SOLIX C1000 supports add-on batteries, so capacity can grow later.
Quick answers
Each answer restates a sourced figure from elsewhere on this page — nothing new, nothing guessed.
- How much does the Anker SOLIX C1000 weigh?
- 12.9 kg (28.4 lb), manufacturer-claimed, without accessories.
- How much capacity does the Anker SOLIX C1000 deliver through an AC outlet?
- About 860 Wh of the rated 1,056 Wh reaches an AC outlet from a full charge — measured in independent testing.
- How long does the Anker SOLIX C1000 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 C1000 output?
- 1,800 W continuous AC output and 2,400 W surge output, manufacturer-claimed. Appliance startup demand must stay within the relevant limit.
- How much solar input can the Anker SOLIX C1000 accept?
- 600 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 C1000?
- 3,000 cycles to 80% remaining capacity, manufacturer-claimed. A cycle rating is not a calendar-life guarantee.
- Can the Anker SOLIX C1000 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 C1000 expand?
- Up to 2,112 Wh with compatible expansion hardware, manufacturer-claimed. The base-unit capacity and expansion-system capacity are shown separately.