Aferiy P280
74BatteryRank score · Excellent
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Aferiy P280 vs EcoFlow DELTA 3 Max
Decision readout
Better station
Aferiy P280 leads by 9 points overall.
EcoFlow DELTA 3 Max
65BatteryRank score · Balanced
What changes the decision
- Home backup: Aferiy P280 — higher AC output
- CPAP & bedroom: EcoFlow DELTA 3 Max — quieter under load
- Camping & RV: Aferiy P280 — lighter and easier to carry
01 · Score evidence
Score breakdown
74
Aferiy P280
Overall
65
EcoFlow DELTA 3 Max
82
POWER
Aferiy P280 +16
66
Battery-side usable capacity and how much you can run at once.
82
TRUST
Aferiy P280 +15
67
Owner reputation, safety record, warranty, and build durability.
69
CHARGING
Aferiy P280 +14
55
Wall and solar recharge speed.
51
LIVABILITY
EcoFlow DELTA 3 Max +20
71
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.
Aferiy P280
Rated (on the box)
2,048 Wh. Show source
claimed sourceaferiy.com ↗2026-07-27The marketing number — total cell capacity.
AC delivered (est.)
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.
EcoFlow DELTA 3 Max
Rated (on the box)
2,048 Wh. Show source
claimed sourceus.ecoflow.com ↗2026-07-04The marketing number — total cell capacity.
AC delivered (est.)
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.
03 · Same assumptions
Same-device runtime
| Device | Aferiy P280 | EcoFlow DELTA 3 Max | Assumption |
|---|---|---|---|
| CPAP (humidifier off) | about 24.2 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 97 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 87 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 →
04 · Sourced hardware
Key specs, side by side
| Spec | Aferiy P280 | EcoFlow DELTA 3 Max |
|---|---|---|
| AC-delivered capacity | 1,741 Whest.. Show sourceestimated sourceaferiy.com ↗2026-07-27 | 1,741 Whest.. Show sourceestimated sourceus.ecoflow.com ↗2026-07-04 |
| Continuous power output | 2,800 W. Show sourceclaimed sourceaferiy.com ↗ | 2,400 W. Show sourceclaimed sourceus.ecoflow.com ↗ |
| Surge power output | 5,600 W. Show sourceclaimed sourceaferiy.com ↗ | 4,800 W. Show sourceclaimed sourceus.ecoflow.com ↗ |
| Max solar input | 1,200 W. Show sourceclaimed sourceaferiy.com ↗ | 500 W. Show sourceclaimed sourceus.ecoflow.com ↗ |
| AC charge time (0–100%) | — | 68 min. Show sourceclaimed sourceus.ecoflow.com ↗ |
| Weight | 21.6 kg. Show sourceclaimed sourceaferiy.com ↗ | 20.3 kg. Show sourceclaimed sourceus.ecoflow.com ↗ |
| Rated cycle life | 4,000 cycles. Show sourceclaimed sourceaferiy.com ↗ | 4,000 cycles. Show sourceclaimed sourceus.ecoflow.com ↗ |
Only show differences
- Continuous power output2,800 W2,400 W
- Surge power output5,600 W4,800 W
- Max solar input1,200 W500 W
- AC charge time (0–100%)—68 min
- Weight21.6 kg20.3 kg
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
Quick answers
- Is the Aferiy P280 better than the EcoFlow DELTA 3 Max?
- Aferiy P280 leads by 9 points overall.
- Which has more usable capacity, the Aferiy P280 or EcoFlow DELTA 3 Max?
- Neither, in any way you would notice: 1,741 Wh against 1,741 Wh is a 0% 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 Aferiy P280 or EcoFlow DELTA 3 Max?
- The Aferiy P280: 2,800 W versus 2,400 W continuous. That gap matters only if a load sits between the two numbers — below 2,400 W both run it, above 2,800 W neither does. Surge headroom follows the same order: 5,600 W against 4,800 W, and surge is what decides whether a compressor or pump actually starts.
- How does runtime compare between the Aferiy P280 and EcoFlow DELTA 3 Max?
- They run within 0% of each other on the same load — about 27.6 hours each on a refrigerator (full-size). Runtime will not separate these two; the deciding factor is somewhere else.
- Which is lighter, the Aferiy P280 or EcoFlow DELTA 3 Max?
- The EcoFlow DELTA 3 Max, by 1.3 kg (20.3 kg versus 21.6 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 Aferiy P280 for home backup, camping & rv; the EcoFlow DELTA 3 Max for cpap & bedroom. They split, so the honest answer depends on which of those you are actually buying for.
Keep deciding
- Full scorecard, specs & price for Aferiy P280 →
- Full scorecard, specs & price for EcoFlow DELTA 3 Max →
- See more alternatives to Aferiy P280 →
- See more alternatives to EcoFlow DELTA 3 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 →