EcoFlow DELTA 3
- 1,024 Wh
- 1,800 W AC (3,600 W surge)
- 27.6 lb
- Wall charge: 56 min to full
HomeCompareEcoFlow DELTA 3 vs Anker SOLIX C1000 Gen 2: which to buy
EcoFlow DELTA 3 vs Anker SOLIX C1000 Gen 2: which to buy
Both hold 1,024 Wh and carry a 5-year warranty, so anything both can power runs for the same time on either. They differ in output, surge, charging speed, solar input, weight, ports and expansion, compared here on EcoFlow's and Anker's own published specs.
On a full charge, both run a 25 cu ft French-door refrigerator for 9.9 hours and a 1/2 HP sump pump for 54 minutes. Choose the DELTA 3 for home backup if you may need more than one battery's worth, since EcoFlow states it expands to 5,000 Wh and Anker lists no expansion battery for the C1000 Gen 2. Choose the SOLIX C1000 Gen 2 if you carry it often or have more than 500 W of solar panels: it weighs 24.9 lb against 27.6 lb, takes up to 600 W of solar against 500 W, and its 2,000 W rating covers appliances between 1,800 W and 2,000 W, such as an 1,875 W hair dryer.
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1 kWh class: DELTA 3 vs SOLIX C1000 Gen 2
| Spec | EcoFlow DELTA 3 | Anker SOLIX C1000 Gen 2 |
|---|---|---|
| Price today (lowest) | $629 | $499.99 |
| Price per Wh | $0.61/Wh | $0.49/Wh |
| Capacity | 1,024 Wh | 1,024 Wh |
| AC output, continuous | 1,800 W | 2,000 W |
| AC output, peak | 3,600 W | 3,000 W |
| AC outlets | 6 | 5 |
| Fastest USB-C port | 100 W | 140 W |
| 12 V car socket | Yes | Yes |
| Battery | LiFePO4 | LFP |
| Cycle life | 4000 cycles to 80+% capacity | 4,000 cycles to 80% |
| Weight | 27.6 lb | 24.9 lb |
| Wall recharge | 56 min to full | 49 min to full |
| Max solar input | 500 W | 600 W |
| UPS switchover | Under 10 ms | Under 10 ms |
| Expandable to | 5,000 Wh | Not expandable |
| Warranty | 5 years | 5 years |
| App | Yes | Yes |
EcoFlow rates the DELTA 3 at 1,800 W continuous and 3,600 W surge. Anker rates the SOLIX C1000 Gen 2 at 2,000 W continuous and 3,000 W peak. An appliance that draws more than 1,800 W, up to 2,000 W, is within the Anker's continuous rating only: an 1,875 W hair dryer runs 27 minutes on it.
- Wall charging: 49 minutes to full on 1,600 W for the Anker, 56 minutes on 1,500 W for the DELTA 3.
- Solar input: 600 W on the Anker, 500 W on the DELTA 3.
- Weight: 24.9 lb for the Anker, 27.6 lb for the DELTA 3.
- Expansion: up to 5,000 Wh on the DELTA 3 with extra batteries; Anker lists none.
- Ports: 6 AC outlets and 100 W USB-C on the DELTA 3; 5 AC outlets and 140 W USB-C on the Anker.
- The same on both: 1,024 Wh, under 10 ms UPS switchover, LFP cells rated 4,000 cycles and a 5-year warranty.
Choose the DELTA 3 if you may add batteries later, need six AC outlets or run a motor whose start-up surge falls between 3,000 W and 3,600 W. Choose the SOLIX C1000 Gen 2 for appliances between 1,800 W and 2,000 W, more than 500 W of solar, 140 W USB-C charging or a lighter unit to carry.
Anker SOLIX C1000 Gen 2
- 1,024 Wh
- 2,000 W AC (3,000 W surge)
- 24.9 lb
- Wall charge: 49 min to full
Warranty, returns and where you buy
Both makers list 5 years on these two models in their US policies. What you have to do to get it differs:
- EcoFlow: its US warranty policy lists 5 years on the DELTA 3. The policy's other term, 3 years plus 2 more with registration, is for the DELTA 3 Classic and DELTA 3 Max.
- Anker SOLIX: Anker's warranty table lists 60 months (5 years) for the C1000 Gen 2, and its registration page says registering activates the 5-year protection. Register the unit after you buy it.
Both makers' US store policies take returns for 30 days from delivery, in the original packing. If you buy from another seller, check that seller's return terms before you order. For support, EcoFlow lists +1 (800) 368-8604, Monday to Friday 9 am to 7 pm ET, and Anker lists +1 (800) 988-5541, Monday to Friday 9 am to 5 pm PT.
Anker sells a refurbished C1000 Gen 2, with a 6-month warranty and a 30-day money-back guarantee. EcoFlow gives refurbished units the same warranty as new ones, but its refurbished list does not include the DELTA 3. See refurbished power stations.
Charging, solar input and UPS switchover
Anker states the faster wall charge: 49 minutes to full at 1,600 W of AC input with UltraFast Charging. EcoFlow states 56 minutes to full for the DELTA 3 at 1,500 W with X-Stream charging. Both refill from the wall in under an hour.
For solar, Anker rates the C1000 Gen 2 at 600 W (60 V max) and EcoFlow rates the DELTA 3 at 500 W (11 V to 60 V). This is the most panel power each station accepts at once. If your panels add up to 500 W or less, the limit does not separate them. Above 500 W, only the Anker uses the extra, up to 600 W.
Both can stay plugged into the wall with your devices running through them. When wall power cuts out, EcoFlow and Anker each state a switchover to battery in under 10 ms, so this spec does not separate them. That matters for a router, a computer or a CPAP you want to keep running through an outage. If you use a CPAP, check with your doctor or equipment supplier about running it on battery power.
Ports, apps and expansion
Count the plugs you need at the same time:
- DELTA 3: 6 AC outlets, 2 USB-C ports (the fastest rated 100 W), 2 USB-A ports (18 W max) and a 126 W car socket.
- SOLIX C1000 Gen 2: 5 AC outlets, 3 USB-C ports (the fastest rated 140 W), 1 USB-A port and a 120 W car socket.
For laptops, the Anker's fastest USB-C port is rated 140 W against 100 W on the DELTA 3. Either one holds enough for 11.6 charges of a 14-inch MacBook Pro by the site's formula.
Both work with an app. EcoFlow lists time-of-use (TOU) and storm warning alerts in its app for the DELTA 3. Anker says its app monitors, controls and schedules power on the C1000 Gen 2.
EcoFlow states the DELTA 3 takes its DELTA 3 EB or DELTA Pro 3 EB extra batteries, up to 5,000 Wh. Anker does not list an expansion battery for the C1000 Gen 2, so plan around its 1,024 Wh. If you want an Anker that expands, the SOLIX C2000 Gen 2 holds 2,048 Wh and Anker states it expands to 4,096 Wh.
Which to choose for home backup
For home backup, both run each of these for the same time on a full charge:
- A 25 cu ft French-door refrigerator: 9.9 hours.
- A 1/2 HP sump pump (920 W running, 2,645 W at start-up): 54 minutes.
- An 80,000 BTU gas furnace blower (394 W): 2.1 hours.
- A mesh Wi-Fi router (eero 6+): 43 hours.
A full day of that refrigerator needs 2,581 Wh of rated capacity by the site's formula. Of these two, only the DELTA 3 reaches that, with EcoFlow's extra batteries. If one charge covers your outages, the Anker's 2,000 W rating and 600 W of solar input count for more.
A hard-wired appliance such as a furnace or well pump needs a transfer switch or power inlet installed by a licensed electrician. Never back-feed a house through an outlet.
Which to choose for camping and RV trips
For camping, the Anker weighs less (24.9 lb against 27.6 lb) and takes more solar (600 W against 500 W). On the 12 V car socket, which skips the inverter, both run:
- a Dometic CFX3 35 fridge for 3.0 days
- a Starlink Mini for 21 hours
Anker lists discharging from -4 °F to 104 °F and charging from 32 °F to 104 °F for the C1000 Gen 2. The DELTA 3's spec list on this site has no temperature range, so check EcoFlow's manual before a cold-weather trip.
For noise, Anker lists 20 dB under 200 W, and EcoFlow lists under 30 dB at 600 W and under 40 dB at 1,200 W. These are stated at different loads, so they do not rank the two.
In an RV, neither starts a 13,500 BTU Dometic Brisk II rooftop AC: its 7,820 W start-up is above both peak ratings.
Questions people ask
Is the EcoFlow DELTA 3 or the Anker SOLIX C1000 Gen 2 better?
It depends on what you run and whether you will add capacity. Both hold 1,024 Wh, carry a 5-year warranty and use LFP cells rated 4,000 cycles to at least 80% capacity. The DELTA 3 has a 3,600 W surge rating (3,000 W on the Anker), a sixth AC outlet and expansion to 5,000 Wh. The SOLIX C1000 Gen 2 has 2,000 W of continuous output (1,800 W on the DELTA 3), charges in 49 minutes against 56, and weighs 24.9 lb against 27.6 lb.
Can the DELTA 3 or the C1000 Gen 2 run a microwave or a hair dryer?
A family-size microwave drawing 1,600 W runs 31 minutes on either. An 1,875 W hair dryer runs 27 minutes on the SOLIX C1000 Gen 2 and is above the DELTA 3's 1,800 W rating. The site checks each load against the maker's continuous rating, not the boost modes: EcoFlow's manual lists a 2,600 W boost mode on the DELTA 3, and Anker's user guide lists SurgePad for up to 2,400 W. Read the maker's manual before you rely on either mode.
Which charges faster, the DELTA 3 or the C1000 Gen 2?
The Anker, from the wall and from solar. Anker rates the C1000 Gen 2 at 49 minutes to full on 1,600 W of input with UltraFast Charging, and up to 600 W of solar. EcoFlow rates the DELTA 3 at 56 minutes to full on 1,500 W, and up to 500 W of solar. The solar limits only separate them if your panels add up to more than 500 W.
Can you add a battery to the DELTA 3 or the SOLIX C1000 Gen 2?
EcoFlow states the DELTA 3 expands to 5,000 Wh with its DELTA 3 EB or DELTA Pro 3 EB batteries. The C1000 Gen 2 has no expansion battery listed by Anker. For an Anker that expands, the SOLIX C2000 Gen 2 holds 2,048 Wh and expands to 4,096 Wh, per Anker.
How long will the DELTA 3 or the C1000 Gen 2 run a refrigerator?
The same on either, since both hold 1,024 Wh: 9.9 hours for a 25 cu ft French-door refrigerator and 14 hours for a 21 cu ft top-freezer model, by the site's formula. Enter your own fridge in the sizing tool for its figure, or see power stations for a refrigerator.
Is the SOLIX C1000 Gen 2 the same as the original C1000?
No. Anker's refurbished store lists the original SOLIX C1000 at 1,056 Wh and 1,800 W. This page compares the Gen 2, which Anker rates at 1,024 Wh and 2,000 W continuous, with a 49-minute wall charge and 600 W of solar input.
Other comparisons
Sources
Specifications are the makers' own published figures, read from these pages. Prices are fetched from the stores at build time and dated where they appear.
- EcoFlow DELTA 3: capacity: https://us.ecoflow.com/products/delta-3-portable-power-station
- EcoFlow DELTA 3: boost mode: https://manuals.ecoflow.com/us/product/delta-3
- Anker SOLIX C1000 Gen 2: capacity: https://www.ankersolix.com/products/c1000-gen2
- Anker SOLIX C1000 Gen 2: boost mode: https://salesforce-knowledge.s3.us-west-2.amazonaws.com/A17631A1_US_UG_V2_20260826/A17631A1_US_UG_V2_20260826.text
- Anker SOLIX C1000 Gen 2: ac outlets: https://www.ankersolix.com/c1000-gen2