Anker SOLIX C1000 Gen 2 (A1763) vs EcoFlow DELTA Pro 3 (EFDELTAPRO3-US)
Anker SOLIX C1000 Gen 2 (A1763)
The short answer
EcoFlow DELTA Pro 3 (EFDELTAPRO3-US) comes out ahead overall with 7.8/10 against 6.5/10 for the Anker SOLIX C1000 Gen 2 (A1763). Anker SOLIX C1000 Gen 2 (A1763) is stronger on portability & usability and value. EcoFlow DELTA Pro 3 (EFDELTAPRO3-US) is stronger on runtime & capacity, home backup integration and health, safety & durability.
- Choose the Anker SOLIX C1000 Gen 2 (A1763) if: Renters, or anyone adding a second unit for the bedroom, who need CPAP, router and lights covered with fast top-ups when power flickers back.
- Choose the EcoFlow DELTA Pro 3 (EFDELTAPRO3-US) if: Homeowners who need a fridge, furnace blower and 240V well pump running through a multi-day winter outage, with the unit kept in heated space.
Scores by criterion
| Criterion | Anker SOLIX C1000 Gen 2 (A1763) | EcoFlow DELTA Pro 3 (EFDELTAPRO3-US) |
|---|---|---|
| Runtime & Capacity | 4.51,024Wh; not expandable. | 9.53,790Wh measured by OutdoorGearLab; 4,000W output; expandable. |
| Cold-Weather Resilience | 5.8Charges at 32°F or above and discharges to -4°F; fast charging needs about 68°F cells. | 5.532°F charge and 14°F discharge floors per third-party retailer specs; no self-heating. |
| Home Backup Integration | 6.010ms UPS; 120V. | 8.8120/240V output and UPS; panel integration needs Smart Home Panel 2 plus installation. |
| Recharge Speed & Flexibility | 9.0About 49-minute full recharge. | 9.01,293Wh/hr measured by OutdoorGearLab; multiple charging inputs. |
| Health, Safety & Durability | 7.0LFP; warranty and UL listing unconfirmed. | 8.8LFP, UL9540 and a 5-year warranty (EcoFlow); no recall found. |
| Portability & Usability | 8.824.9 lb. | 5.0114 lb on wheels. |
| Value | 7.6About $0.52/Wh. | 6.8About $0.74 per measured Wh. |
Specifications
| Spec | Anker SOLIX C1000 Gen 2 (A1763) | EcoFlow DELTA Pro 3 (EFDELTAPRO3-US) |
|---|---|---|
| Battery capacity | 1,024 Wh | 4,096 Wh |
| Continuous AC output | 2,000 W | 4,000 W |
| Battery chemistry | LiFePO4 (LFP) | LiFePO4 (LFP) |
| Minimum charging temperature | 32 °F | 32 °F |
| Minimum discharging temperature | -4 °F | 14 °F |
| Battery self-heating | No | — |
| UPS switchover time | 10 ms | — |
| Expandable with extra batteries | — | Yes |
| 240V output | No | Yes |
| Weight | 24.9 lb | 114.1 lb |
| Warranty | — | 5 years |
| Notable safety certification | — | UL9540 |
Anker SOLIX C1000 Gen 2 (A1763)
Pros
- Full recharge in about 49 minutes
- 24.9 lb
- 10ms UPS
- 2,000W output
- Budget-friendly
Cons
- Only 1kWh
- Not for multi-day fridge and heat
- Fast charging needs warm cells
Best as a second unit for the bedroom or for renters who only need to cover essentials.
Full Anker SOLIX C1000 Gen 2 (A1763) review →EcoFlow DELTA Pro 3 (EFDELTAPRO3-US)
Pros
- 3,790Wh usable in OutdoorGearLab's measurements
- 4,000W output from both 120V and 240V
- Full recharge in about 3.2 hours
- Expandable toward 48kWh
- UL9540 listing and 5-year warranty per EcoFlow
Cons
- About 114 lb, even on wheels
- Premium price
- No confirmed self-heating; keep it indoors
- Panel integration costs extra
The best choice for a multi-day winter outage if you have heated space for it and want 240V. Plan on the extra cost of the panel and installation if you want circuits wired in.
Full EcoFlow DELTA Pro 3 (EFDELTAPRO3-US) review →Both products are part of our guide The Best Power Stations for Winter Power Outages of 2026, where you can see every pick, how we score and current prices from each retailer.