The short version: buy the C1000 Gen 2 if you carry it in and out of a van or truck camper, the S2000 if you want 2kWh in the smallest box and your loads stay under 1,500W, the C2000 Gen 2 if you tow a travel trailer and want a TT-30R outlet and 800W alternator charging, and the F3800 Plus if the same unit has to cover a bigger rig, 240V loads or home backup. The rest of this guide shows why, with Anker's own numbers.
The four Anker SOLIX stations side by side
| C1000 Gen 2 | S2000 | C2000 Gen 2 | F3800 Plus | |
|---|---|---|---|---|
| Capacity | 1,024 Wh | 2,010 Wh | 2,048 Wh | 3,840 Wh |
| AC output (rated / peak) | 2,000 W / 3,000 W | 1,500 W / 3,000 W | 2,400 W / 4,000 W | 6,000 W, 120V/240V |
| Weight | 24.9 lb | 35.7 lb | 41.7 lb | 136.7 lb, on wheels |
| Max solar | 600 W | 400 W | 800 W | 3,200 W (2 inputs) |
| Max AC charging | 1,600 W | 1,600 W | 1,800 W | 1,800 W at 120V |
| Expandable | No | No | Yes, to 4,096 Wh | Yes, up to 6 BP3800 |
| TT-30R RV outlet | Not listed | Not listed | Yes (20A) | Yes (25A) |
| 12V car-socket output | Yes, 120 W | No | Yes, 120 W | Yes, 120 W |
| Cycle rating | 4,000 to 80% | 6,000 to 80% | 4,000 | 3,000+ |
All figures are Anker's, from its product pages and spec tables. Anker covers all four with a 5-year warranty.
Pick by output first
A station can only run an appliance whose watts are below its rated output, and it has to cover the brief start-up spike of anything with a motor or compressor. So start with the biggest single thing you want to run.
- Fridge, lights, fans, laptops, CPAP: any of the four. Anker uses a 100 W refrigerator and a 40 W CPAP as its own example loads.
- Kettle, coffee maker, microwave (around 1,000 W): any of them, but the S2000's 1,500 W ceiling leaves the least room for a second load at the same time.
- A 13,500 BTU rooftop air conditioner: Anker's own sizing guide puts it at about 1,300–1,800 W running and 2,800–3,500 W to start. On paper that rules out the S2000 (1,500 W rated, 3,000 W peak) and makes the C1000 Gen 2 borderline at start-up. The C2000 Gen 2 (2,400 W, 4,000 W peak) clears it on paper. The F3800 Plus covers the running load easily, but its TT-30R is rated 3,000 W and Anker publishes no surge figure for it, so the start-up spike of some units may exceed it. Test your own unit before you count on it, because start-up draw varies by model, age and heat.
Then pick capacity for how long
For planning we assume about 85% of the rated capacity reaches your appliances after inverter losses. That is our estimate, not Anker's figure. Hours = rated Wh × 0.85 ÷ watts.
| Load | C1000 Gen 2 | S2000 | C2000 Gen 2 | F3800 Plus |
|---|---|---|---|---|
| Usable (planning) | about 870 Wh | about 1,709 Wh | about 1,741 Wh | about 3,264 Wh |
| CPAP, 40 W | about 22 h | about 43 h | about 44 h | about 82 h |
| Fridge, 100 W continuous | about 8.7 h | about 17 h | about 17 h | about 33 h |
| Kettle, 1,000 W | about 52 min | about 1.7 h | about 1.7 h | about 3.3 h |
| 13,500 BTU AC running, 1,300–1,800 W | not advised | not advised | about 1–1.3 h | about 1.8–2.5 h |
A real fridge cycles on and off, so it uses less than a constant 100 W. That is why Anker can quote up to 35 hours of fridge backup for the S2000 (its test used a 700 L household fridge) and up to 32 hours for a dual-door fridge on the C2000 Gen 2. Our table is the cautious, always-on case.
C1000 Gen 2: the one you carry
At 24.9 lb it is the light one, and it is strong for its size: 2,000 W rated from a 1,024 Wh battery. Anker says it fully recharges in 49 minutes at 1,600 W once UltraFast charging is switched on in the app, and that UltraFast only kicks in when the battery is above 68°F, so expect slower charging on a cold morning. It takes up to 600 W of solar and has a 12V car-socket output for a 12V fridge. It cannot take an expansion battery; Anker says that was left out to save size and weight.
S2000: 2kWh in the smallest box
Anker bills the S2000 as the smallest and lightest 2kWh station: 8.2 × 11.1 × 12.7 in and 35.7 lb. It is also frugal: Anker lists 6 W active idle and 2 W standby, which matters when a station sits in a camper for days. The trade-offs are real for RV use. Output is 1,500 W, solar tops out at 400 W, it has no 12V DC output and no expansion port, and Anker does not list a TT-30 outlet. Its default AC charging is 1,150 W (about 2.3 hours to full, per Anker); 1,600 W needs UltraFast mode in the app.
C2000 Gen 2: the travel-trailer pick
This is the Anker built most directly for RVs. Anker lists a TT-30R outlet rated 120V, 20A and 2,400 W, so a 30-amp shore cord plugs straight in (the limits of that are in our 30-amp RV guide). It takes 800 W of solar, 1,800 W from the wall, and 800 W from the Anker SOLIX Alternator Charger while you drive, which Anker rates at about 3 hours to full. One BP2000 (Gen 2) doubles it to 4,096 Wh, and that is the ceiling.
One detail on charge times: Anker quotes 80% in 45 minutes and 100% in 58 minutes with AC and solar charging together (2,600 W). On AC alone its table says 100% in 88 minutes. On AC alone its table says 100% in 88 minutes.
F3800 Plus: big rigs and home backup
The F3800 Plus is a different class: 3,840 Wh, 6,000 W at 120V or 240V, and up to 3,200 W of solar across two inputs (11–165V, 17A, 1,600 W each). Anker lists a TT-30R outlet (120V, 25A, up to 3,000 W) and an L14-30R 120/240V outlet, plus six 120V outlets. It expands with up to six BP3800 batteries of 3,840 Wh each, which works out to about 26.9 kWh on one unit. It also works with Anker's Home Power Panel or a standard transfer switch at home. At 136.7 lb it rolls on wheels; this is not one you lift into a van.
Which one, by rig
- Car camping, small van, truck camper: C1000 Gen 2, plus a PS200 or two.
- Weekends in a teardrop or pop-up, light loads: S2000, if you can live without a 12V socket output and expansion.
- 30-amp travel trailer, lots of driving: C2000 Gen 2, ideally with the Alternator Charger bundle.
- Large trailer, fifth wheel, or one unit for the RV and the house: F3800 Plus.
Still deciding between brands? Our Jackery vs EcoFlow vs Anker SOLIX comparison covers that, and the RV solar and battery calculator will size your daily use.
FAQ
Which Anker SOLIX is lightest?
The C1000 Gen 2 at 24.9 lb. Among the 2kWh units, the S2000 (35.7 lb) is lighter than the C2000 Gen 2 (41.7 lb).
Which Anker SOLIX stations can be expanded?
The C2000 Gen 2 (one BP2000 Gen 2, to 4,096 Wh) and the F3800 Plus (up to six BP3800). The C1000 Gen 2 and S2000 cannot.
Can I run a 12V fridge directly?
Yes on the C1000 Gen 2, C2000 Gen 2 and F3800 Plus, which each have a 12V, 10A car-socket output. The S2000 has no 12V DC port, so a 12V fridge would need an AC adapter.
Where do they ship from?
Every Anker SOLIX product we sell ships from our warehouse in Upland, California, to the lower 48 states, and carries Anker's warranty. Browse the full Anker SOLIX range.