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Aferiy P280 vs EcoFlow DELTA 3 Max

Aferiy P280 — front view

Aferiy P280

74BatteryRank score · Excellent
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Decision readout
Better station

Aferiy P280 leads by 9 points overall.

EcoFlow DELTA 3 Max — front view

EcoFlow DELTA 3 Max

65BatteryRank score · Balanced
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What changes the decision

By the BatteryRank Engineering Team

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 sourceclaimed sourceaferiy.com ↗2026-07-27

The marketing number — total cell capacity.

AC delivered (est.)
1,741 Wh. Show sourceestimated sourceestimate = battery-side usable capacity × 85% inverter efficiency

What 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 sourceclaimed sourceus.ecoflow.com ↗2026-07-04

The marketing number — total cell capacity.

AC delivered (est.)
1,741 Wh. Show sourceestimated sourceestimate = battery-side usable capacity × 85% inverter efficiency

What reaches an AC outlet — about 15% is lost turning battery power into household AC. How we estimate.

03 · Same assumptions

Same-device runtime

Estimated runtime for the same sourced devices on Aferiy P280 and EcoFlow DELTA 3 Max
DeviceAferiy P280EcoFlow DELTA 3 MaxAssumption
CPAP (humidifier off)about 24.2 nightsabout 24.2 nights9 W ·
CPAP (heated humidifier on)about 3.9 nightsabout 3.9 nights56 W ·
Refrigerator (full-size)about 28 hoursabout 28 hours180 W × 35% duty cycle ·
Wi-Fi router + modemabout 97 hoursabout 97 hours18 W ·
Laptop (65W charger)about 54 hoursabout 54 hours65 W × 50% duty cycle ·
Phone (one full charge)about 87 full chargesabout 87 full charges20 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

Key sourced specifications for Aferiy P280 and EcoFlow DELTA 3 Max
SpecAferiy P280EcoFlow 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 ↗2026-07-27
2,400 W. Show sourceclaimed sourceus.ecoflow.com ↗2026-07-04
Surge power output
5,600 W. Show sourceclaimed sourceaferiy.com ↗2026-07-27
4,800 W. Show sourceclaimed sourceus.ecoflow.com ↗2026-07-04
Max solar input
1,200 W. Show sourceclaimed sourceaferiy.com ↗2026-07-27
500 W. Show sourceclaimed sourceus.ecoflow.com ↗2026-07-04
AC charge time (0–100%)—
68 min. Show sourceclaimed sourceus.ecoflow.com ↗2026-07-04
Weight
21.6 kg. Show sourceclaimed sourceaferiy.com ↗2026-07-27
20.3 kg. Show sourceclaimed sourceus.ecoflow.com ↗2026-07-04
Rated cycle life
4,000 cycles. Show sourceclaimed sourceaferiy.com ↗2026-07-27
4,000 cycles. Show sourceclaimed sourceus.ecoflow.com ↗2026-07-04
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

Where to buy

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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

Scores computed from sourced data · prices timestamped · tap or focus a figure to view its source

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