Home Power Facts Anker SOLIX C2000 Gen 2 vs EcoFlow DELTA 2 Max
The EcoFlow DELTA 2 Max delivers more usable capacity than the Anker SOLIX C2000 Gen 2 (about 1,800 Wh vs 1,600 Wh). A typical refrigerator runs about 24 h on the Anker SOLIX C2000 Gen 2 and 27 h on the EcoFlow DELTA 2 Max.
Specs verified 2026-10-18. Every value below links to its source.
Where they differ
- EcoFlow DELTA 2 Max: more usable capacity (1,800 Wh vs 1,600 Wh, Anker SOLIX C2000 Gen 2).
- EcoFlow DELTA 2 Max: higher surge rating (4,800 W vs 4,000 W, Anker SOLIX C2000 Gen 2).
- Anker SOLIX C2000 Gen 2: lighter (41.7 lb vs 50 lb, EcoFlow DELTA 2 Max).
- Anker SOLIX C2000 Gen 2: lower list price (1,199.99 USD vs 1,299 USD, EcoFlow DELTA 2 Max).
- EcoFlow DELTA 2 Max: lower price per usable Wh ($0.72 vs $0.75, Anker SOLIX C2000 Gen 2), the fairest value measure across sizes.
- EcoFlow DELTA 2 Max: more solar input (1,000 W vs 800 W, Anker SOLIX C2000 Gen 2).
Check Anker SOLIX C2000 Gen 2 price on AmazonCheck EcoFlow DELTA 2 Max price on Amazon Affiliate links: we may earn a commission, at no cost to you. As an Amazon Associate I earn from qualifying purchases.
Specs side by side
| Spec | Anker SOLIX C2000 Gen 2 | EcoFlow DELTA 2 Max |
|---|---|---|
| Rated capacity | 2,048 Wh[source]Specs 'Cell Capacity 51.2V / 40000mAh / 2,048Wh'. Model A1783; not the same product as the S2000 or F2000. | 2,048 Wh[source]Spec table: 'Capacity 2048Wh'. |
| Usable capacity (measured) | 1,600 Wh[source]Notebookcheck drew 'a good 1,600 Wh' at a ~200 W continuous load (just under 79%), and about 1,850 Wh at 1,800 W. That was the European 230 V version; The Solar Lab (US unit) reported ~89% efficiency but no Wh figure. | 1,800 Wh[source]StorageReview measured 1,800 Wh through the AC inverter at a 350 W load (120 V unit). The Solar Lab reports 86% inverter efficiency but gives no Wh figure. |
| AC continuous output | 2,400 W[source]'AC Output (NEMA 5-20R) 120V~ 20A Max, 60Hz, 2400W Max'. | 2,400 W[source]Spec table: 'AC Output 6 outlets, 2400W total (Surge 4800W)'. X-Boost: 3,400 W. |
| AC surge output | 4,000 W[source]Specs 'Peak Power 4000W'. | 4,800 W[source]Spec table and user manual both say 'surge 4,800W'. Marketing text on the same page cites 'up to 3400W' (that is the X-Boost figure, not surge). |
| 240 V output | No[source]All AC outputs are 120 V: 'AC Output (NEMA 5-20R) 120V~ 20A Max, 60Hz' and 'AC Output (TT-30R) 120V~ 20A Max, 60Hz'. | No[source]Official manual: 'AC (x6) Pure sine wave, 2,400W total (surge 4,800W) 120V~ 50/60Hz'. 120 V only; the product page does not state outlet voltage. |
| Battery chemistry | LiFePO4[source]Specs 'Battery Type LFP'. | LiFePO4[source]Spec table: 'LFP (LiFePO4 battery)'. |
| Cycle life | 4,000 cycles to 80% capacity[source]Spec table 'Cycle Life 4000 Cycles'; comparison table '4,000 Cycles to 80% Capacity'. The page's structured spec data conflicts with '3000+ Cycles'. | 3,000 cycles to 80%+ capacity[source]Spec table: '3000 cycles to 80+% capacity'. |
| AC charging | 1,800 W[source]US spec 'AC Input 120V~ 15A Max, 1800W Max, 12A (Continuous)'; 100% in 88 min on AC alone. AC + solar together reach 2,600 W (100% in 58 min). The EU version charges at up to 2,300 W. | 1,800 W[source]Spec table: 'AC Charging X-stream Fast Charge 1800W, 15A'. Manual agrees ('X-Stream max. 1,800W 15A'). |
| Max solar input | 800 W[source]'PV /XT-60i Input 11-60V⎓17A Max, 800W'. | 1,000 W[source]Spec table: '11-60V 15A, single port 500W; dual port 1,000W'. |
| Expandable | Yes[source]'Up to 4kWh Expandable Capacity' with one BP2000 (Gen 2) expansion battery. | Yes[source]Spec table: 'Supports up to two DELTA 2 Max Smart Extra Batteries / DELTA Max Smart Extra Battery'. |
| UPS / EPS switchover | 10 ms[source]Specs 'UPS 10 ms'. | 20 ms[source]Official US product page: '<20ms UPS Auto-Switch' and 'updated 20 ms UPS feature'. The original user manual V1.0 says 'within 30ms'. Not listed in the us.ecoflow.com spec table. |
| Weight | 41.7 lb[source]Comparison table '41.7 lb (18.9 kg)'; spec table 'Net Weight 18.9 kg'. Structured spec data says '41 lb'. | 50 lb[source]Spec table: 'Net weight (lbs) 50 lbs' / '23kg'. |
| Warranty | 5 years[source]From the page's structured spec data ('Warranty: 5 Years'); the visible page only says 'Hassle-Free Warranty' and '10 Year Lifespan'. | 5 years[source]'5-Year warranty'. |
| List price | $1,199.99[source]Regular price $1,199.99; sale price $999.99 ('Saved $200.00') seen 2026-10-18. Page notes orders ship starting October 20. | $1,299[source]Standalone variant compare-at price $1,299.00; sale price $1,049.00 seen 2026-10-18 (a members-only 'Free Bag' variant shows compare-at $1,099). |
| Usable capacity used for runtimes | 1,600 Wh | 1,800 Wh |
Runtime on one charge
| Appliance | Anker SOLIX C2000 Gen 2 | EcoFlow DELTA 2 Max |
|---|---|---|
| Refrigerator | 24 h | 27 h |
| Chest freezer | 2.7 days | 3.1 days |
| CPAP (no humidifier) | 35.6 h | 40 h |
| CPAP with heated humidifier | 17.8 h | 20 h |
| Sump pump (1/3 hp) | 2.5 h | 2.8 h |
| Sump pump (1/2 hp) | 1.7 h | 1.9 h |
| Gas furnace blower (1/2 hp) | 2.9 h | 3.3 h |
| Window AC (5,000 BTU) | 4.6 h | 5.2 h |
| Microwave | 1.8 h | 2 h |
| Coffee maker | 1.3 h | 1.5 h |
| Laptop charger | 26.7 h | 30 h |
| Phone charger | 3.3 days | 3.8 days |
| Wi-Fi router / modem | 4.4 days | 5 days |
| TV (LED, 32-55 inch) | 23.5 h | 26.5 h |
| LED light bulb (each) | 7.4 days | 8.3 days |
| Space heater | 1.1 h | 1.2 h |
| Oxygen concentrator (home, 5 L/min) | 4.6 h | 5.1 h |
| Starlink (Standard kit) | 18.2 h | 20.5 h |
| Desktop PC + monitor | 17.8 h | 20 h |
| Electric blanket (queen) | 6.2 h | 6.9 h |
| Box fan (20 inch) | 19.3 h | 21.7 h |
| Dehumidifier (35-50 pint) | 3.3 h | 3.7 h |
| Portable air conditioner (8,000-10,000 BTU) | 1.3 h | 1.5 h |
| Electric kettle | 1.1 h | 1.2 h |
| Portable induction cooktop (single burner) | 0.9 h | 1 h |
| Air fryer | 1.1 h | 1.2 h |
| Mini fridge (compact, ~3 cu ft) | 2.7 days | 3 days |
| Garage door opener | 2.2 h | 2.5 h |
Runtime = usable capacity ÷ average draw, the same formula for both models (no idle draw added to either), after checking continuous output and startup surge. Usable capacity is an independent test's measured figure, or 80% of rated where none exists. See the methodology.