EcoFlow DELTA 3 Classic vs Anker SOLIX C1000 Gen 2
Both are 1,024 Wh LiFePO4 power stations aimed at similar portable-power needs, including refrigerator backup, RV trips and home essentials. This comparison is for shoppers who have already narrowed their choice to these two models and want the real differences the data supports — not marketing claims.
These picks are focused on the U.S. market. Before buying, confirm plug type, voltage (120V), warranty terms, and regional availability on the Amazon listing.
Last checked September 1, 2026 — see each product’s Specifications tab for full provenance.
Quick summary
- Anker SOLIX C1000 Gen 2 leads on rated continuous output (2,000 W vs 1,800 W).
- EcoFlow DELTA 3 Classic leads on surge / peak output (3,600 W vs 3,000 W).
- Anker SOLIX C1000 Gen 2 leads on solar input (max) (600 W vs 500 W).
A use case below only names a model as ahead when at least two independent, comparable fields agree (or the use case is defined by a single field, like solar charging). A single distinguishing field in an otherwise-tied or unverified category is named specifically, not counted as winning that use case.
Illustrative image — not an exact product photograph.
EcoFlow
DELTA 3 Classic
Illustrative image — not an exact product photograph.
Anker SOLIX
C1000 Gen 2
Spec comparison
Reused directly from the same catalog and winner-highlighting logic as the general Compare page. A blank or “Not verified” cell means the data isn’t on file — it is never treated as zero, and a difference is only highlighted when both values are actually known.
| Specification | EcoFlow DELTA 3 Classic | Anker SOLIX C1000 Gen 2 |
|---|---|---|
| Energy & output | ||
| Capacity (Wh) | 1,024 Wh | 1,024 Wh |
| Rated continuous output | 1,800 W | 2,000 W |
| Surge / peak output | 3,600 W | 3,000 W |
| Max expanded capacity | Not verified | Not verified |
| Portability | ||
| Weight | 12.1 kg | Not verified |
| Energy per kg (Wh/kg) | 85 Wh/kg | Not verified |
| Dimensions | 398 × 200 × 283 mm | Not verified |
| Idle consumption | Not verified | Not verified |
| Charging | ||
| Solar input (max) | 500 W | 600 W |
| AC charging (max) | 1,400 W | 1,600 W |
| Charging time (stated) | Full charge approx. 1 hour via AC; approx. 2.5 h solar at 500W | 49 min UltraFast AC recharge; approx. 1.8 h solar |
| Ports | ||
| AC outlets | Not verified | Not verified |
| USB-C ports | 2 ports | Not verified |
| USB-A ports | 1 port | Not verified |
| RV TT-30 outlet | No | No |
| Native 120/240V | No | No |
| Backup | ||
| UPS switchover | 10 ms | 10 ms |
| Expandable | No | Not verified |
| Battery | ||
| Battery chemistry | LiFePO4 | LiFePO4 |
| Cycle life (stated) | Not verified | 4000 cycles to 80% capacity |
| Warranty (stated) | 5 years (3 standard + 2 with registration) | Not verified |
| PowerMatch Score | ||
| Editorial score | 56/100 (Good) · 5/5 dimensions | 65/100 (Good) · 3/5 dimensions |
Scores are editorial calculations normalized against the whole PowerMatchLab catalog — not a lab test result. See the methodology.
Winner by use case
Each verdict below is derived only from the specific fields listed as criteria — never from overall impressions, and never from physical testing. A null field is neither a win nor a loss for either unit, and a category needs at least two independent fields to agree before it declares an overall winner (a category built around a single criterion, like solar charging, is the exception).
Refrigerator backup
No clear overall winner based on the data on file.
Criteria: Capacity (Wh), Surge / peak output, Idle consumption, Solar input (max) (3 of 4 comparable).
RV / van life
No clear overall winner based on the data on file.
Criteria: Rated continuous output, Surge / peak output, RV TT-30 outlet, Expandable (3 of 4 comparable).
Camping
No clear overall winner based on the data on file.
Anker SOLIX C1000 Gen 2 has the higher solar input (max) among the data available, but weight and energy per kg (wh/kg) and idle consumption are not verified for one or both units.
Criteria: Weight, Energy per kg (Wh/kg), Idle consumption, Solar input (max) (1 of 4 comparable).
Home outage essentials
No clear overall winner based on the data on file.
Anker SOLIX C1000 Gen 2 has the higher rated continuous output among the data available, but expandable is not verified for one or both units.
Criteria: Capacity (Wh), Rated continuous output, Native 120/240V, UPS switchover, Expandable (4 of 5 comparable).
Solar charging
Anker SOLIX C1000 Gen 2 edges ahead here.
Criteria: Solar input (max) (1 of 1 comparable).
Portability
No clear overall winner based on the data on file.
Criteria: Weight, Energy per kg (Wh/kg) (0 of 2 comparable).
Estimated autonomy
Calculated the same way as each product page’s runtime table: capacity_wh × 0.85 ÷ device_watts. These are planning estimates, not lab measurements or guarantees.
| Example load | EcoFlow DELTA 3 Classic | Anker SOLIX C1000 Gen 2 |
|---|---|---|
| Refrigerator (full size) (~150 W) | 5.8 h | 5.8 h |
| CPAP machine (no humidifier) (~40 W) | 21.8 h | 21.8 h |
| LED lights (a few rooms) (~40 W) | 21.8 h | 21.8 h |
Why your real result may differ
These figures are planning estimates from the inputs and assumptions above — not a lab measurement. Your real result can vary with:
- Temperature — cold reduces usable battery capacity; heat can trigger throttling
- Battery age and condition — capacity fades gradually with cycles and time
- Inverter efficiency — some energy is always lost converting DC to AC
- Variable appliance draw — most appliances don't pull a constant wattage
- Startup/surge power — a motor's brief startup spike can exceed its running watts
- Appliance settings — e.g. humidifier, fan speed, or temperature setting
- Conversion losses beyond the modeled efficiency assumption
- Real solar conditions — actual panel output is usually well below its rated watts
- The safety reserve is a margin for error, not a guarantee
Pros & limitations
From each product’s existing catalog entry — no personal impressions, noise, build-quality or real-world behavior is added here.
EcoFlow DELTA 3 Classic
Pros
- Fast AC charging
- 500W solar input
- 10ms UPS
- Compact 1kWh platform
Limitations
- Not expandable
- No native 240V output
Anker SOLIX C1000 Gen 2
Pros
- 2000W output from a 1kWh-class station
- Very fast charging
- 600W solar
- 10ms UPS
Limitations
- No native 240V
- Expansion capability not yet verified for dataset
Conclusion
Both units share the same registered capacity (1,024 Wh). EcoFlow DELTA 3 Classic has the higher surge / peak output on file. Anker SOLIX C1000 Gen 2 has the higher rated continuous output and solar input (max) and ac charging (max) on file.
Weight, Dimensions, Expandable, Warranty (stated) are not verified for the Anker SOLIX C1000 Gen 2. With those gaps, there is no absolute winner between these two units based on the data currently on file.
If solar charging matters most to you, the Anker SOLIX C1000 Gen 2 has the edge on file for solar charging. For the other use cases evaluated above, the data on file doesn’t support picking one unit over the other — check which specific criteria matter for your situation.
Neither unit has been physically tested by PowerMatchLab. Before buying, enter your own devices in the Power Calculator — the numbers above use example loads, and your real appliances may draw differently.
EcoFlow DELTA 3 Classic
Price, availability and current rating are shown on Amazon — PowerMatchLab does not display them because we have not independently verified them. As an Amazon Associate we may earn from qualifying purchases. Disclosure.
Anker SOLIX C1000 Gen 2
Price, availability and current rating are shown on Amazon — PowerMatchLab does not display them because we have not independently verified them. As an Amazon Associate we may earn from qualifying purchases. Disclosure.