Anker SOLIX C2000 Gen 2 vs EcoFlow DELTA 2 Max
Anker SOLIX C2000 Gen 2 takes weight and noise, EcoFlow DELTA 2 Max takes recharge speed — the decision is which of those you need, not overall quality. If neither is your constraint, the composite tiebreak goes to Anker SOLIX C2000 Gen 2 by 3 points — a hair, not a mandate.
- trustAnker SOLIX C2000 Gen 2+144,000 cycles vs 3,000 cycles
- chargingEcoFlow DELTA 2 Max+131,000 W vs 800 W solar input
- livabilityAnker SOLIX C2000 Gen 2+2018.9 kg vs 23.0 kg
- Home backup: EcoFlow DELTA 2 Max — stronger combined capacity and AC-output score
- Camping & RV: Anker SOLIX C2000 Gen 2 — lighter and easier to carry
By the BatteryRank Engineering Team
Score breakdown
Battery-side usable capacity and how much you can run at once.
Owner reputation, safety record, warranty, and build durability.
Wall and solar recharge speed.
Lightweight, portable, and quiet enough to live with.
Computed from sourced data with a published, price-independent formula. Scores are relative to each model's size class.
Capacity truth
The watt-hours on the box aren't what reaches your devices. Same scale, both units.
2,048 Wh. Show source
claimed sourceankersolix.com ↗2026-07-04The marketing number — total cell capacity.
1,761 Wh. Show source
estimated sourcetrustedreviews.com ↗Trusted Reviews reported 86% of 2,048 Wh delivered on AC · 2026-07-04 · 1,761 Wh derived from that ratio; no direct Wh result statedDerived from a reviewer-reported AC-delivery ratio; the source does not state a direct Wh result. 14% below the label. How we estimate.
2,048 Wh. Show source
claimed sourceus.ecoflow.com ↗2026-07-04The marketing number — total cell capacity.
1,741 Wh. Show source
estimated sourceestimate = battery-side usable capacity × 85% inverter efficiencyWhat reaches an AC outlet — about 15% is lost turning battery power into household AC. How we estimate.
Same-device runtime
| Device | Anker SOLIX C2000 Gen 2 | EcoFlow DELTA 2 Max | Assumption |
|---|---|---|---|
| CPAP (humidifier off) | about 24.5 nights | about 24.2 nights | 9 W · |
| CPAP (heated humidifier on) | about 3.9 nights | about 3.9 nights | 56 W · |
| Refrigerator (full-size) | about 28 hours | about 28 hours | 180 W × 35% duty cycle · |
| Wi-Fi router + modem | about 98 hours | about 97 hours | 18 W · |
| Laptop (65W charger) | about 54 hours | about 54 hours | 65 W × 50% duty cycle · |
| Phone (one full charge) | about 88 full charges | about 87 full charges | 20 W · |
One device at a time; estimates use each station's usable AC energy. Build your own load →
Key specs, side by side
| Spec | Anker SOLIX C2000 Gen 2 | EcoFlow DELTA 2 Max |
|---|---|---|
| AC-delivered capacity | 1,761 Whest.. Show sourceestimated sourcetrustedreviews.com ↗Trusted Reviews reports 86% of 2,048 Wh delivered on AC · 2026-07-04 · 1,761 Wh derived from that ratio; no direct Wh result stated | 1,741 Whest.. Show sourceestimated sourceus.ecoflow.com ↗2026-07-04 |
| Continuous power output | 2,400 W. Show sourceclaimed sourceankersolix.com ↗2026-07-04 | 2,400 W. Show sourceclaimed sourceus.ecoflow.com ↗2026-07-04 |
| Surge power output | 4,000 W. Show sourceclaimed sourceankersolix.com ↗2026-07-04 | 4,800 W. Show sourceclaimed sourceecoflow.com ↗2026-07-07 |
| Max solar input | 800 W. Show sourceclaimed sourceankersolix.com ↗2026-07-04 | 1,000 W. Show sourceclaimed sourceus.ecoflow.com ↗2026-07-04 |
| AC charge time (0–100%) | 88 min. Show sourceclaimed sourceankersolix.com ↗2026-07-04 | — |
| Weight | 18.9 kg. Show sourceclaimed sourceankersolix.com ↗2026-07-04 | 23 kg. Show sourceclaimed sourceus.ecoflow.com ↗2026-07-04 |
| Rated cycle life | 4,000 cycles. Show sourceclaimed sourceankersolix.com ↗2026-07-04 | 3,000 cycles. Show sourceclaimed sourceus.ecoflow.com ↗2026-07-04 |
Only show differences
- AC-delivered capacity1,761 Wh1,741 Wh
- Surge power output4,000 W4,800 W
- Max solar input800 W1,000 W
- AC charge time (0–100%)88 min—
- Weight18.9 kg23 kg
- Rated cycle life4,000 cycles3,000 cycles
Manufacturer figures unless marked verified or est. Tap or focus a figure to view its source. The better reading in each row is highlighted — lower wins for weight and recharge time.
Where these rank
- Anker SOLIX C2000 Gen 2 #4 of 10 in Best 2,000 Wh Stations · #4 of 10 in Best Power Stations for Apartment Outages
- EcoFlow DELTA 2 Max #8 of 10 in Best 2,000 Wh Stations · #8 of 10 in Best Power Stations for Apartment Outages
Where to buy
Affiliate links: we may earn a commission if you buy, at no extra cost to you. Commission never affects our rankings.
Anker SOLIX C2000 Gen 2
EcoFlow DELTA 2 Max
Quick answers
- Is the Anker SOLIX C2000 Gen 2 better than the EcoFlow DELTA 2 Max?
- Anker SOLIX C2000 Gen 2 takes weight and noise, EcoFlow DELTA 2 Max takes recharge speed — the decision is which of those you need, not overall quality. If neither is your constraint, the composite tiebreak goes to Anker SOLIX C2000 Gen 2 by 3 points — a hair, not a mandate.
- Which has more usable capacity, the Anker SOLIX C2000 Gen 2 or EcoFlow DELTA 2 Max?
- Neither, in any way you would notice: 1,761 Wh against 1,741 Wh is a 1.1% gap, which is smaller than the swing you get from running the same load on a cold morning. Treat them as the same size and decide on output, weight, or today's price instead. Both figures are estimated AC-delivered energy, not the nameplate battery rating — the watt-hours that actually reach your devices.
- Which has more AC output, the Anker SOLIX C2000 Gen 2 or EcoFlow DELTA 2 Max?
- Neither — both are rated 2,400 W continuous, so any load one can run, the other can too. Surge headroom follows the same order: 4,000 W against 4,800 W, and surge is what decides whether a compressor or pump actually starts.
- How does runtime compare between the Anker SOLIX C2000 Gen 2 and EcoFlow DELTA 2 Max?
- They run within 1.1% of each other on the same load — about 28 hours each on a refrigerator (full-size). Runtime will not separate these two; the deciding factor is somewhere else.
- Which is lighter, the Anker SOLIX C2000 Gen 2 or EcoFlow DELTA 2 Max?
- The Anker SOLIX C2000 Gen 2, by 4.1 kg (18.9 kg versus 23 kg). Both weights are manufacturer figures for the bare unit; cables and a solar panel add to whatever you actually carry.
- Which model should I buy for my use case?
- On the sub-scores that describe each use case: the EcoFlow DELTA 2 Max for home backup; the Anker SOLIX C2000 Gen 2 for camping & rv. They split, so the honest answer depends on which of those you are actually buying for.
Keep deciding
- Full scorecard, specs & price for Anker SOLIX C2000 Gen 2 →
- Full scorecard, specs & price for EcoFlow DELTA 2 Max →
- See more alternatives to Anker SOLIX C2000 Gen 2 →
- See more alternatives to EcoFlow DELTA 2 Max →
- What size do you need? →
- Browse all rankings →
- Check device runtime evidence →
- Compare outage and trip load plans →
- Browse complete power kits →
- Capacity vs output explained →
- Battery cycle-life thresholds →
- UPS behavior explained →

