Anker SOLIX S2000
- AC delivered · est.
1,709 Wh. Show source
estimated sourceankersolix.com ↗2026-07-27- output
1,500 W. Show source
claimed sourceankersolix.com ↗- weight
16.2 kg. Show source
claimed sourceankersolix.com ↗
Limited
#19 of 20
in the Large (2 kWh class) class
Lifted by Durability & longevity and Portability; held back by capacity & expansion.
Check current availability and pricing at the retailer.
Check price on AmazonSee alternatives to the Anker SOLIX S2000 →At a glance
Anker SOLIX S2000 is a large (2 kwh class) model best suited to cpap traveler. It supplies 1,500 W of continuous AC output. BatteryRank scores it 45 out of 100 within its size class.
Our verdict on the Anker SOLIX S2000
Read this one as a storage unit that happens to have an inverter, not as a power station. It holds 2,010 Wh but delivers only 1,500 W continuous — the lowest output-to-capacity ratio in our catalog at this size — and accepts just 400 W of solar. What it does have is a 6,000-cycle rating and 16.2 kg of weight, both exceptional for 2 kWh. It is built to last and to be carried, not to run demanding equipment.
- You want two kilowatt-hours you can genuinely carryAt 16.2 kg it is roughly six to fourteen kilograms lighter than every other 2 kWh-class unit we track, which changes it from a two-hand lift to a one-hand one.
- The pack needs to survive many years of daily cyclingA 6,000-cycle rating to 80 percent is the joint-longest in our catalog and implies more than sixteen years at one full cycle per day.
- Your loads are steady and modestFor lighting, refrigeration in the 100 to 200 W range, networking and charging, the 1,500 W ceiling is never approached and the 2,010 Wh runs a long time.
- You want to run kitchen appliances or power toolsA 1,500 W continuous rating is below what a kettle, a microwave or a circular saw typically draws, so those loads are excluded outright despite the 2,010 Wh sitting behind them. The F3000 delivers 3,600 W continuous and holds 3,072 Wh.
- You intend to expand the pack over timeAdd-on battery support is not documented for this model, so the 2,010 Wh should be treated as the permanent ceiling rather than a starting point. The F2000 documents add-on battery support, which is unstated here.
The honest limit: The 6,000-cycle rating is the standout claim and it deserves the attention, but longevity is only valuable if the unit remains useful for that long. A 1,500 W inverter and a 400 W solar ceiling are modest today, and sixteen years of cell life attached to output limits that already exclude common appliances is a durable answer to a narrowing question.
What our data can’t tell you: Surge rating, usable capacity, expandability and split-phase support are all unsourced here, along with wall-recharge time. The absent surge figure matters most: with only 1,500 W of continuous output, headroom would determine whether it copes with even a small motor, and we cannot say whether it has any.
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.
2,010 Wh. Show source
claimed sourceankersolix.com ↗2026-07-27The marketing number — total cell capacity.
1,709 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 23.7 nights | 9 W · |
| CPAP (heated humidifier on) | about 3.8 nights | 56 W · |
| Refrigerator (full-size) | about 27 hours | 180 W × 35% duty cycle · |
| Wi-Fi router + modem | about 95 hours | 18 W · |
| Laptop (65W charger) | about 53 hours | 65 W × 50% duty cycle · |
| Phone (one full charge) | about 85 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.
1709 Wh AC-delivered (est.) → multiple CPAP nights per charge
1500 W inverter, 1709 Wh AC-delivered (est.) → 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
est.50% dataBattery-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
42% dataOwner 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
- Rated cycle life
6,000 cycles. Show source
claimed sourceankersolix.com ↗- Battery chemistry
LiFePO4. Show source
claimed sourceankersolix.com ↗- Rated capacity
2,010 Wh. Show source
claimed sourceankersolix.com ↗- Cycle-life threshold
80 %. Show source
claimed sourceankersolix.com ↗
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
1,500 W. Show source
claimed sourceankersolix.com ↗- AC outlets
5 outlets. Show source
claimed sourceankersolix.com ↗- USB-A ports
1 ports. Show source
claimed sourceankersolix.com ↗- USB-C ports
2 ports. 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.
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.
Charging & solar
- AC recharge speed
1,150 W. Show source
claimed sourceankersolix.com ↗- Max solar input
400 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
10 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
16.2 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.
What else to consider instead of the Anker SOLIX S2000
Same or adjacent size class, ordered by the price-independent composite. Every alternative is better than the Anker SOLIX S2000 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.
- DJI Power 2000score 75 · same size class
- Why you would switch
- The DJI Power 2000 carries 100% more continuous output (3,000 W vs 1,500 W), which decides what it can run at all.
- What you give up
- The Anker SOLIX S2000 is 26% lighter (16.2 kg vs 22 kg).
- Aferiy P280score 74 · same size class
- Why you would switch
- The Aferiy P280 carries 87% more continuous output (2,800 W vs 1,500 W), which decides what it can run at all.
- What you give up
- The Anker SOLIX S2000 is 25% lighter (16.2 kg vs 21.6 kg).
- Oupes Mega 2 Proscore 69 · same size class
- Why you would switch
- The Oupes Mega 2 Pro carries 67% more continuous output (2,500 W vs 1,500 W), which decides what it can run at all.
- What you give up
- The Anker SOLIX S2000 is 27% lighter (16.2 kg vs 22.1 kg).
- Anker SOLIX C2000 Gen 2score 68 · same size class
- Why you would switch
- The Anker SOLIX C2000 Gen 2 carries 60% more continuous output (2,400 W vs 1,500 W), which decides what it can run at all.
- What you give up
- The Anker SOLIX S2000 is 14% lighter (16.2 kg vs 18.9 kg).
- Bluetti Elite 200 v2score 68 · same size class
- Why you would switch
- The Bluetti Elite 200 v2 delivers 21% more usable AC energy (2,074 Wh vs 1,709 Wh).
- What you give up
- The Anker SOLIX S2000 is 33% lighter (16.2 kg vs 24.2 kg).
Quick answers
Each answer restates a sourced figure from elsewhere on this page — nothing new, nothing guessed.
- How much does the Anker SOLIX S2000 weigh?
- 16.2 kg (35.7 lb), manufacturer-claimed, without accessories.
- What are the dimensions of the Anker SOLIX S2000?
- 208 × 282 × 323 mm (8.2 × 11.1 × 12.7 in), length × width × height, manufacturer-claimed.
- How much capacity does the Anker SOLIX S2000 deliver through an AC outlet?
- About 1,709 Wh of the rated 2,010 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 S2000 output?
- 1,500 W continuous AC output, manufacturer-claimed. Appliance startup demand must stay within the relevant limit.
- How much solar input can the Anker SOLIX S2000 accept?
- 400 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 S2000?
- 6,000 cycles to 80% remaining capacity, manufacturer-claimed. A cycle rating is not a calendar-life guarantee.
- Can the Anker SOLIX S2000 work as a UPS?
- Its manufacturer-claimed transfer time is 10 ms. Confirm that your connected equipment tolerates that transfer time; this is not the same as a zero-transfer online UPS.
Keep exploring
- Refrigerator runtime guide
- CPAP nights-per-charge calculator
- How Many Watts Does a Chest Freezer Use?
- How Many Watts Does a 12V Camping Fridge Use?
- How Many Watts Does an RV Refrigerator Use?
- How Many Watts Does an Electric Cooler Use?
- Portable Power for a 12-Hour Outage
- Power an RV Refrigerator and Lights
- Complete CPAP Overnight Power Kit