Shop the two stations: Anker SOLIX S2000 (2,010Wh) · Anker SOLIX C2000 Gen 2 (2,048Wh)
Solar kits: S2000 Power Station & Kits · C2000 Gen 2 Power Station & Kits
Genuine Anker SOLIX with Anker's warranty, shipped from Upland, California to the lower 48 states.
The S2000 and the C2000 Gen 2 hold almost the same energy, about 2kWh each, so the choice is not about capacity. It comes down to three things: how much power you need at once, whether you want to plug an RV straight in, and how much room you have to carry it.
Short answer: pick the S2000 if size, weight and long battery life matter most and your loads stay under 1,500W. Pick the C2000 Gen 2 if you want a 30-amp RV outlet, more output, faster solar and the option to double capacity later.
Side by side
| S2000 | C2000 Gen 2 | |
|---|---|---|
| Capacity | 2,010Wh LFP | 2,048Wh LFP |
| AC output | 1,500W rated, 3,000W peak | 2,400W rated, 4,000W peak |
| RV outlet | None | TT-30R (20A, up to 2,400W) |
| Other AC outlets | Household outlets front and rear | 5x NEMA 5-20R |
| 12V car-socket output | No | Yes, 12V 10A (120W) |
| USB | 1x USB-C 100W, 1x USB-C 15W, 1x USB-A 12W | 2x USB-C 140W, 1x USB-C 15W, 1x USB-A 12W |
| Wall charging | 1,150W standard, 1,600W ultra-fast | Up to 1,800W (100% in 88 min, per Anker) |
| Solar input | 400W max, 11–60V | 800W max, 11–60V, 17A |
| Charging while driving | With the Alternator Charger (sold as a bundle) | 800W with the Alternator Charger, per Anker |
| Expansion | Not expandable | One BP2000 (Gen 2) for 4,096Wh |
| Cycle life | 6,000 cycles to 80% | 4,000 cycles |
| Idle draw | 6W active idle, 2W standby | 9W |
| UPS switchover | 10 ms or less | 10 ms |
| Size | 8.2 x 11.1 x 12.7 in | 18.1 x 9.8 x 10.1 in |
| Weight | 35.7 lb | 41.7 lb |
| Warranty | 5 years | 5 years |
Figures are Anker's, as listed on our product pages.
Where the S2000 wins
- Size. It takes up about a third less space than the C2000 Gen 2 and weighs 6 lb less. Anker bills it as the smallest and lightest 2kWh power station. In a van or under a dinette, that matters.
- Battery life. Anker rates its cells for 6,000 cycles to 80% against 4,000 for the C2000 Gen 2. If you will cycle it every day for years, as a full-time van battery or a daily home UPS, that is a real advantage.
- Low standby draw. 2W in standby helps when it sits plugged in as backup for a router, CPAP or fridge.
Where the C2000 Gen 2 wins
- The RV plug. Its TT-30R lets you plug a 30-amp travel trailer's shore cord straight in. The S2000 has no RV outlet, so you would need an adapter cord and you would still be limited to 1,500W.
- More power. 2,400W rated covers a microwave, coffee maker or induction plate with room to spare. Anker's own example loads put a 13,500 BTU rooftop AC at 1,300–1,800W running, which the C2000 Gen 2 can run for about an hour; the S2000's 1,500W ceiling makes that a poor fit.
- Charging options. Twice the solar input (800W against 400W), a 12V car output, and Anker's 800W alternator-charging figure.
- Room to grow. One BP2000 (Gen 2) doubles it to 4,096Wh. The S2000 cannot be expanded.
How long each one runs
Because the capacities are nearly the same, runtimes are too. We plan on 85% of rated capacity being usable after conversion losses: hours = Wh x 0.85 ÷ watts.
| Load | S2000 | C2000 Gen 2 | C2000 Gen 2 + BP2000 |
|---|---|---|---|
| CPAP, 40W | about 43 h | about 43 h | about 87 h |
| Fridge, 100W always on | about 17 h | about 17 h | about 35 h |
| Kettle, 1,000W | about 1.7 h | about 1.7 h | about 3.5 h |
| 13,500 BTU RV AC, 1,300–1,800W | not advised | about 1–1.3 h | about 2–2.7 h |
A real fridge cycles on and off, so it uses less than a constant 100W; see how long an Anker SOLIX will run a refrigerator.
Which one for you
- Travel trailer with a 30-amp cord: C2000 Gen 2. Plug in and go, and add a BP2000 later if you stay out longer.
- Van, truck camper or tight storage: S2000, as long as nothing you run tops 1,500W.
- Home backup for a fridge, router and CPAP: either. The S2000's longer cycle life and 2W standby make it the better always-plugged-in UPS.
- You want to run a microwave and a coffee maker at the same time: C2000 Gen 2.
Comparing the wider range? See which Anker SOLIX power station for an RV and running a 30-amp RV on an Anker SOLIX.
FAQ
Can I add a battery to the S2000 later?
No. The S2000 has no expansion port. If you think you will want more than 2kWh, start with the C2000 Gen 2.
Does the S2000 have a 12V socket for a 12V fridge?
No. Run a 12V fridge from it through the fridge's AC adapter if it has one, or choose the C2000 Gen 2, which has a 12V 10A car-socket output.
Which charges faster from solar?
The C2000 Gen 2, at up to 800W against the S2000's 400W. One PS400 fills the S2000's solar input; two PS400s in parallel fill the C2000 Gen 2's. See PS100, PS200 or PS400 sizing.
Can either run my RV air conditioner?
The C2000 Gen 2 can run a typical 13,500 BTU unit for about an hour once it is started. The S2000 is not suited to it. Start-up draw varies by unit, so test yours before you rely on it.