Anker SOLIX C800 X
63BatteryRank score · Balanced
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Anker SOLIX C800 X vs EcoFlow DELTA 3 Plus
Decision readout
Better station
EcoFlow DELTA 3 Plus leads by 9 points overall.
EcoFlow DELTA 3 Plus
72BatteryRank score · Excellent
What changes the decision
- Home backup: EcoFlow DELTA 3 Plus — more AC-delivered capacity and higher AC output
- Camping & RV: EcoFlow DELTA 3 Plus — lighter and easier to carry
By the BatteryRank Engineering Team
01 · Score evidence
Score breakdown
63
Anker SOLIX C800 X
Overall
72
EcoFlow DELTA 3 Plus
57
POWER
EcoFlow DELTA 3 Plus +13
70
Battery-side usable capacity and how much you can run at once.
72
TRUST
EcoFlow DELTA 3 Plus +5
77
Owner reputation, safety record, warranty, and build durability.
79
CHARGING
Tied
79
Wall and solar recharge speed.
17
LIVABILITY
EcoFlow DELTA 3 Plus +40
57
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.
02 · Usable energy
Capacity truth
The watt-hours on the box aren't what reaches your devices. Same scale, both units.
Anker SOLIX C800 X
Rated (on the box)
768 Wh. Show source
claimed sourceankersolix.com2026-07-04https://www.ankersolix.com/products/b1755112The marketing number — total cell capacity.
AC deliveredmeasured
580 Wh. Show source
verified source~580 Wh extracted at 1200W over 29 min (Trusted Reviews)2026-07-04~580 Wh extracted at 1200W over 29 min (Trusted Reviews) · 24% below the label
EcoFlow DELTA 3 Plus
Rated (on the box)
1,024 Wh. Show source
claimed sourceus.ecoflow.com2026-07-04https://us.ecoflow.com/products/delta-3-plus-portable-power-stationThe marketing number — total cell capacity.
AC delivered (est.)
870 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.
03 · Same assumptions
Same-device runtime
| Device | Anker SOLIX C800 X | EcoFlow DELTA 3 Plus | Assumption |
|---|---|---|---|
| CPAP (humidifier off) | about 8.1 nights | about 12.1 nights | 9 W · |
| CPAP (heated humidifier on) | about 1.3 nights | about 1.9 nights | 56 W · |
| Refrigerator (full-size) | about 9.2 hours | about 14 hours | 180 W × 35% duty cycle · |
| Wi-Fi router + modem | about 32 hours | about 48 hours | 18 W · |
| Laptop (65W charger) | about 18 hours | about 27 hours | 65 W × 50% duty cycle · |
| Phone (one full charge) | about 29 full charges | about 43 full charges | 20 W · |
One device at a time; estimates use each station's usable AC energy. Build your own load →
04 · Sourced hardware
Key specs, side by side
| Spec | Anker SOLIX C800 X | EcoFlow DELTA 3 Plus |
|---|---|---|
| AC-delivered capacity | 580 Whverified. Show sourceverified source~580 Wh extracted at 1200W over 29 min (Trusted Reviews)2026-07-04 | 870 Whest.. Show sourceestimated sourceus.ecoflow.com2026-07-04https://us.ecoflow.com/products/delta-3-plus-portable-power-station |
| Continuous power output | 1,200 W. Show sourceclaimed sourceankersolix.com2026-07-04https://www.ankersolix.com/products/b1755112 | 1,800 W. Show sourceclaimed sourceus.ecoflow.com2026-07-04https://us.ecoflow.com/products/delta-3-plus-portable-power-station |
| Surge power output | 1,600 W. Show sourceclaimed sourceankersolix.com2026-07-04https://www.ankersolix.com/products/b1755112 | 3,600 W. Show sourceclaimed sourceus.ecoflow.com2026-07-04https://us.ecoflow.com/products/delta-3-plus-portable-power-station |
| Max solar input | 300 W. Show sourceclaimed sourceankersolix.com2026-07-04https://www.ankersolix.com/products/b1755112 | 1,000 W. Show sourceclaimed sourceus.ecoflow.com2026-07-04https://us.ecoflow.com/products/delta-3-plus-portable-power-station |
| AC charge time (0–100%) | 58 min. Show sourceclaimed sourceankersolix.com2026-07-04https://www.ankersolix.com/products/b1755112 | 56 min. Show sourceclaimed sourceus.ecoflow.com2026-07-04https://us.ecoflow.com/products/delta-3-plus-portable-power-station |
| Weight | 10.9 kg. Show sourceclaimed sourceankersolix.com2026-07-04https://www.ankersolix.com/products/b1755112 | 12.5 kg. Show sourceclaimed sourceus.ecoflow.com2026-07-04https://us.ecoflow.com/products/delta-3-plus-portable-power-station |
| Rated cycle life | 3,000 cycles. Show sourceclaimed sourceankersolix.com2026-07-04https://www.ankersolix.com/products/b1755112 | 4,000 cycles. Show sourceclaimed sourceus.ecoflow.com2026-07-04https://us.ecoflow.com/products/delta-3-plus-portable-power-station |
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 C800 X #7 of 10 in Best Power Stations for Photographers & Drones
- EcoFlow DELTA 3 Plus #1 Midsize (1 kWh class) in Best Portable Power Stations · #1 of 10 in Lightest Power Stations
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 C800 X
EcoFlow DELTA 3 Plus
Quick answers
- Is the Anker SOLIX C800 X better than the EcoFlow DELTA 3 Plus?
- EcoFlow DELTA 3 Plus leads by 9 points overall.
- Which has more usable capacity, the Anker SOLIX C800 X or EcoFlow DELTA 3 Plus?
- The EcoFlow DELTA 3 Plus, by 290 Wh — 580 Wh versus 870 Wh, a 50% advantage. At a 60 W load that is roughly 4.8 extra hours before the battery is empty. Both figures are estimated AC-delivered energy, not the nameplate battery rating — the watt-hours that actually reach your devices, which is always less than the number on the box.
- Which has more AC output, the Anker SOLIX C800 X or EcoFlow DELTA 3 Plus?
- The EcoFlow DELTA 3 Plus: 1,200 W versus 1,800 W continuous. That gap matters only if a load sits between the two numbers — below 1,200 W both run it, above 1,800 W neither does. Surge headroom follows the same order: 1,600 W against 3,600 W, and surge is what decides whether a compressor or pump actually starts.
- How does runtime compare between the Anker SOLIX C800 X and EcoFlow DELTA 3 Plus?
- On the same sourced load — a refrigerator (full-size) — the EcoFlow DELTA 3 Plus runs longer: 13.8 hours against 9.2. These are planning estimates from each model's AC-delivered capacity, not stopwatch tests; real duty cycle and temperature move them.
- Which is lighter, the Anker SOLIX C800 X or EcoFlow DELTA 3 Plus?
- The Anker SOLIX C800 X, by 1.6 kg (10.9 kg versus 12.5 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 3 Plus for home backup, camping & rv. One model leads every use case we score here, which makes this an unusually clean choice.
Keep deciding
- Full scorecard, specs & price for Anker SOLIX C800 X →
- Full scorecard, specs & price for EcoFlow DELTA 3 Plus →
- See more alternatives to Anker SOLIX C800 X →
- See more alternatives to EcoFlow DELTA 3 Plus →
- 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 →