Quick verdict
Pick the EcoFlow DELTA 3 Max Plus if you want the most power and room to grow: 3,000 W output (6,000 W surge), X-Boost for resistive loads up to 3,800 W, 1,000 W of solar input and expansion from 2 to 10 kWh.
Pick the Anker SOLIX C2000 Gen 2 if you want a lighter, RV-ready unit: it weighs 7 lb less, adds a 30 A TT-30R RV outlet and a dedicated home-inlet output, has five household outlets and lists a 5-year warranty, but tops out at 2,400 W and about 4 kWh.
Both store the same 2,048 Wh in LFP cells, so on a single battery they run the same appliances for the same time: an average refrigerator for about 24 hours.
How we compare: this is a spec-based comparison built from EcoFlow’s and Anker’s official listings plus cited independent sources, with runtimes calculated by our standard formula. We have not tested these units hands-on. See How We Test.
Anker SOLIX C2000 Gen 2 vs EcoFlow DELTA 3 Max Plus at a glance
| What matters most | EcoFlow DELTA 3 Max Plus | Anker SOLIX C2000 Gen 2 | Edge |
|---|---|---|---|
| Continuous AC output | 3,000 W | 2,400 W | EcoFlow |
| Surge | 6,000 W | 4,000 W peak | EcoFlow |
| Maximum capacity with extra batteries | 10 kWh | About 4 kWh | EcoFlow |
| Solar input | 1,000 W | 800 W | EcoFlow |
| Weight | 48.7 lb | 41.7 lb | Anker |
| RV (TT-30R) outlet | No | Yes | Anker |
| Home inlet output | Not listed | 15 A / 1,800 W | Anker |
| Household AC outlets | 4 | 5 | Anker |
| Warranty | 3 years + 2 with registration | 5 years | Anker |
Pros and cons
EcoFlow DELTA 3 Max Plus
- Pro: 3,000 W continuous and 6,000 W surge handle big motors and kitchen appliances.
- Pro: expands from 2 to 10 kWh, enough for multi-day outages.
- Pro: 1,000 W of solar across two inputs; 0–80% in about 96 minutes of full sun (EcoFlow figure).
- Pro: 30 A Anderson port for 12 V gear such as a fridge or van system.
- Con: 48.7 lb, the heavier of the two.
- Con: no TT-30R RV outlet and no dedicated home-inlet output listed.
- Con: EcoFlow gives a lifespan estimate (about 10 years) rather than a cycle rating.
Anker SOLIX C2000 Gen 2
- Pro: 41.7 lb, about 7 lb lighter for the same 2,048 Wh.
- Pro: TT-30R outlet plugs straight into an RV’s 30 A cord.
- Pro: bi-directional 15 A inlet output for a home connection installed by an electrician.
- Pro: 4,000 cycles to 80%, a 9 W idle draw and a 5-year warranty listed.
- Con: 2,400 W output (4,000 W peak) is lower.
- Con: tops out at about 4 kWh with one expansion battery.
- Con: 800 W solar input, and louder under load by Anker’s own figure (30 dB vs EcoFlow’s 25 dB).
Full specifications
| Specification | EcoFlow DELTA 3 Max Plus | Anker SOLIX C2000 Gen 2 |
|---|---|---|
| Capacity | 2,048 Wh (51.2 V, 40 Ah) | 2,048 Wh (51.2 V, 40 Ah) |
| Battery chemistry | LFP (LiFePO4) | LFP (LiFePO4) |
| Rated lifespan | About 10 years (EcoFlow estimate); cycles not listed | 4,000 cycles to 80% |
| AC output | 3,000 W continuous, 6,000 W surge | 2,400 W continuous, 4,000 W peak |
| High-wattage mode | X-Boost: resistive devices up to 3,800 W at reduced power | Not listed |
| AC outlets | 4, each up to 20 A | 5 (NEMA 5-20R) + 1 TT-30R RV |
| USB-C | 1 × 140 W; 2 × 45 W (45 W shared) | 2 × 140 W; 1 × 15 W |
| USB-A | 1 × 18 W | 1 × 12 W |
| 12 V outputs | Car outlet 126 W + Anderson 30 A (378 W shared) | Car socket, 12 V 10 A (about 120 W) |
| Home connection | Not listed | Inlet output, 15 A / 1,800 W |
| AC charging | 1,800 W; 0–80% in about 64 min | 1,800 W; 100% in 88 min |
| Solar input | 1,000 W (two 500 W inputs, 11–60 V) | 800 W (11–60 V, 17 A, XT-60i) |
| Fastest combined charging | 0–80% in about 43 min with EcoFlow’s smart generator | AC + solar 2,600 W; 100% in 58 min |
| UPS switchover | Under 10 ms | 10 ms |
| Idle power draw | Not listed | 9 W |
| Noise | ≤25 dB at 600 W | 30 dB under 1,000 W |
| Expansion | 2–10 kWh | About 4 kWh (one BP2000 Gen 2) |
| Charging temperature | 32–113°F (0–45°C) | 32–104°F (0–40°C) |
| Dimensions | 19.4 × 9.5 × 12.0 in | 18.1 × 9.8 × 10.1 in |
| Weight | 48.7 lb (22.1 kg) | 41.7 lb (18.9 kg) |
| Warranty | 3 years + 2 with registration | 5 years |
Where a line says “not listed,” the manufacturer’s spec sheet does not give that number, so we do not guess it.
Ports: which one plugs into more of your gear
The Anker wins on variety. Its five household outlets plus the TT-30R RV outlet cover more cords at once, and the two 140 W USB-C ports can fast-charge two laptops. The EcoFlow answers with four 20 A outlets and the only 30 A Anderson port here, which matters if you run a 12 V fridge or a van’s DC system. For wiring into your home, only the Anker lists a dedicated inlet output; the EcoFlow’s bigger sibling, the DELTA 3 Ultra Plus, is the EcoFlow built for that job.
Charging: wall, solar and car
| Charging method | EcoFlow DELTA 3 Max Plus | Anker SOLIX C2000 Gen 2 |
|---|---|---|
| Wall outlet | 1,800 W; 0–80% in about 64 min | 1,800 W; 100% in 88 min |
| Solar | Up to 1,000 W; 0–80% in about 96 min in full sun | Up to 800 W |
| Wall + solar or generator | 0–80% in about 43 min with EcoFlow Smart Generator 4000 | 2,600 W combined; 100% in 58 min |
| Car | With EcoFlow’s alternator charger (sold separately) | 100 W from the 12 V socket (about 23 h) or 800 W with Anker’s alternator charger (about 3 h) |
The takeaway: both refill from a wall outlet in roughly an hour to an hour and a half: EcoFlow lists 0–80% in about 64 minutes, and Anker lists a full charge in 88 minutes. For off-grid living the EcoFlow’s extra 200 W of solar adds up: at 3 peak sun hours and our 75% real-world factor, 1,000 W of panels collect about 2,250 Wh a day versus about 1,800 Wh with 800 W. See the best solar panels for power stations.
Apps and outage features
Both connect to a phone app over Wi-Fi and Bluetooth, and both offer a Storm Guard mode that watches severe weather alerts and tops up the battery before a storm arrives. EcoFlow’s app adds a self-powered mode and scheduled tasks for daily use with solar. Anker’s app offers Standard, Time-of-Use and Fast Charging Plan modes; Time-of-Use charges when electricity is cheaper if your utility bills by the hour.
Either way, check that the unit is charged before storm season: see how long a power station holds a charge in storage, and set the app to alert you when the battery drops.
How long each one runs your appliances
Formula: hours = (battery Wh × 0.85) ÷ (appliance watts + 10). Example: a refrigerator averaging 62.5 W on the 2,048 Wh base unit: 2,048 × 0.85 = 1,741 Wh; 1,741 ÷ 72.5 = about 24 hours.
| Appliance (average watts) | Either unit, 2,048 Wh | Anker max (about 4,096 Wh) | EcoFlow max (about 10,240 Wh) |
|---|---|---|---|
| Average refrigerator (62.5 W) | 24 h | 48 h | 5 days |
| Efficient refrigerator (41.7 W) | 34 h | 67 h | 7 days |
| CPAP, no humidifier (30 W) | 43 h (about 5 nights) | 87 h | Over 9 days |
| CPAP with humidifier (55 W) | 27 h (about 3 nights) | 54 h | Over 5 days |
| Wi-Fi router (15 W) | 70 h | 139 h | Over 14 days |
| Laptop (50 W) | 29 h | 58 h | 6 days |
| Box fan (50 W) | 29 h | 58 h | 6 days |
| LED TV (90 W) | 17 h | 35 h | 3.6 days |
| Gas furnace blower, ECM (99 W average) | 16 h | 32 h | 3.3 days |
| Microwave or space heater (1,500 W) | About 70 min | About 2.3 h | About 5.8 h |
On one battery these two are identical, so the real question is how far you want to expand. Plug in your own devices with our power station calculator, or see why capacity matters in 1,000 Wh vs 2,000 Wh. For furnace details, read can a power station run a gas furnace.
Three real scenarios
1. A three-day hurricane outage
Fridge, Wi-Fi, lights and phones average about 95 W. For 72 hours you need (95 + 10) × 72 ÷ 0.85 = about 8,900 Wh. The EcoFlow can grow to about 10 kWh and cover it; fully expanded, the Anker’s 4,096 Wh lasts about 33 hours. Winner: EcoFlow DELTA 3 Max Plus.
2. A weekend in a travel trailer
Your RV has a 30 A shore-power cord. The Anker’s TT-30R outlet takes that plug directly, it is 7 lb lighter to load, and 2,400 W covers the fridge, lights and a coffee maker one at a time. The EcoFlow needs an adapter and has no TT-30R. Winner: Anker SOLIX C2000 Gen 2. More options in the best power stations for van life and RV.
3. A home office on backup
A laptop, monitor and router draw about 120 W: 1,741 Wh ÷ 130 W = about 13 hours on either unit, and both switch over in about 10 ms. The EcoFlow is quieter by its spec (25 dB vs 30 dB), while the Anker lists a low 9 W idle draw. Result: a tie; pick on weight and ports.
How they compare with the alternatives
| Model | Capacity | AC output | Solar input | Weight | Best for |
|---|---|---|---|---|---|
| EcoFlow DELTA 3 Max Plus | 2,048 Wh (to 10 kWh) | 3,000 W | 1,000 W | 48.7 lb | Growing into multi-day backup |
| Anker SOLIX C2000 Gen 2 | 2,048 Wh (to about 4 kWh) | 2,400 W | 800 W | 41.7 lb | RVs and a lighter 2 kWh unit |
| EcoFlow DELTA 3 Ultra Plus | 3,072 Wh (to 11 kWh) | 3,600 W | 1,600 W | 74.3 lb | Wiring into a home circuit |
| EcoFlow DELTA 3 Plus | 1,024 Wh | 1,800 W | 1,000 W | 27.6 lb | Shorter outages and camping |
Still deciding? See our full home backup picks.
A third 2 kWh option worth a look: the Jackery HomePower 2000 Plus v2 matches the Anker’s 2,400 W and 800 W of solar, expands further than either (to 12 kWh) and lists charging down to 14°F. See our Jackery HomePower 2000 Plus v2 review.
Who should buy which
Buy the EcoFlow DELTA 3 Max Plus if you:
- Want to run 2,400–3,000 W appliances or large motor loads.
- Plan to add batteries for outages longer than two days.
- Live off solar and want the extra 200 W of input.
- Use 12 V gear that needs the 30 A Anderson port.
Buy the Anker SOLIX C2000 Gen 2 if you:
- Travel in an RV or trailer with a 30 A cord.
- Want an electrician to connect it to your home through an inlet.
- Care about carrying weight: it is 7 lb lighter.
- Value a 5-year warranty and a stated 4,000-cycle rating.
Skip both if you:
- Only need phones, lights and a CPAP for one night: a 1 kWh unit such as the DELTA 3 Plus costs and weighs less.
- Want whole-circuit backup at 3 kWh or more from day one: look at the DELTA 3 Ultra Plus.
Frequently asked questions
Which is better for home backup, the C2000 Gen 2 or the DELTA 3 Max Plus?
For long outages, the DELTA 3 Max Plus, because it expands to about 10 kWh and outputs 3,000 W. For a simpler home connection, the C2000 Gen 2 lists a dedicated 15 A inlet output that an electrician can wire to a few circuits.
Do they run the same appliances for the same time?
Yes, on a single battery. Both hold 2,048 Wh, so an average fridge runs about 24 hours on either. The difference appears once you add expansion batteries.
Can either one run a refrigerator and a microwave together?
Yes. A typical fridge (roughly 150 W while its compressor runs) plus a 1,500 W microwave is about 1,650 W, within both units’ continuous output.
Which one is quieter?
By the manufacturers’ figures, the EcoFlow: 25 dB or less at 600 W versus Anker’s 30 dB under 1,000 W. The two numbers are measured at different loads, so treat the gap as a rough guide.
Which one has the better warranty?
The Anker lists 5 years. EcoFlow lists 3 years, extended to 5 when you register the product.
Sources
- EcoFlow: DELTA 3 Max Plus Solar Generator (specs and charging times)
- EcoFlow: DELTA 3 Max Plus specifications
- Anker SOLIX: C2000 Gen 2 portable power station
- Trusted Reviews: Anker SOLIX C2000 Gen 2 (independent review)
- The Technology Man: EcoFlow DELTA 3 Max Plus review (solar input per port)
- StorageReview: DELTA 3 Max Plus and Ultra Plus (Ultra Plus specs)
- Full details and more sources in our DELTA 3 Max Plus review and C2000 Gen 2 review.