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Aferiy P280 vs Fossibot F2400

Aferiy P280 — front view

Aferiy P280

74BatteryRank score · Excellent
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Decision readout
Better station

Aferiy P280 leads by 27 points overall.

Fossibot F2400 — front view

Fossibot F2400

47BatteryRank score · Limited
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What changes the decision
01 · Score evidence

Score breakdown

74
Aferiy P280
Overall
47
Fossibot F2400
82
POWER
Aferiy P280 +32
50

Battery-side usable capacity and how much you can run at once.

82
TRUST
Aferiy P280 +20
62

Owner reputation, safety record, warranty, and build durability.

69
CHARGING
Aferiy P280 +47
22

Wall and solar recharge speed.

51
LIVABILITY
Fossibot F2400 +2
53

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.com2026-07-27

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.

Fossibot F2400
Rated (on the box)
2,048 Wh. Show sourceclaimed sourcefossibot.com2026-07-04

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 Fossibot F2400
DeviceAferiy P280Fossibot F2400Assumption
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 Fossibot F2400
SpecAferiy P280Fossibot F2400
AC-delivered capacity
1,741 Whest.. Show sourceestimated sourceaferiy.com2026-07-27
1,741 Whest.. Show sourceestimated sourcefossibot.com2026-07-04
Continuous power output
2,800 W. Show sourceclaimed sourceaferiy.com
2,400 W. Show sourceclaimed sourcefossibot.com
Surge power output
5,600 W. Show sourceclaimed sourceaferiy.com
4,800 W. Show sourceclaimed sourcefossibot.com
Max solar input
1,200 W. Show sourceclaimed sourceaferiy.com
500 W. Show sourceclaimed sourcefossibot.com
AC charge time (0–100%)
120 min. Show sourceclaimed sourcefossibot.com
Weight
21.6 kg. Show sourceclaimed sourceaferiy.com
22 kg. Show sourceclaimed sourcefossibot.com
Rated cycle life
4,000 cycles. Show sourceclaimed sourceaferiy.com
3,500 cycles. Show sourceclaimed sourcefossibot.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%)120 min
  • Weight21.6 kg22 kg
  • Rated cycle life4,000 cycles3,500 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

Quick answers

Is the Aferiy P280 better than the Fossibot F2400?
Aferiy P280 leads by 27 points overall.
Which has more usable capacity, the Aferiy P280 or Fossibot F2400?
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 Fossibot F2400?
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 Fossibot F2400?
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 Fossibot F2400?
They are effectively the same to carry — 21.6 kg against 22 kg. Neither is meaningfully easier to move, so portability should not decide this one.
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. One model leads every use case we score here, which makes this an unusually clean choice.

Keep deciding

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

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