
Aferiy P280 vs Fossibot F2400

Aferiy P280 leads by 27 points overall.

Fossibot F2400
- Home backup: Aferiy P280 — higher AC output
- Camping & RV: Aferiy P280 — lighter and easier to carry
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 sourceaferiy.com ↗2026-07-27The 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.
2,048 Wh. Show source
claimed sourcefossibot.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 | Aferiy P280 | Fossibot F2400 | 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 →
Key specs, side by side
| Spec | Aferiy P280 | Fossibot F2400 |
|---|---|---|
| AC-delivered capacity | 1,741 Whest.. Show sourceestimated sourceaferiy.com ↗2026-07-27 | 1,741 Whest.. Show sourceestimated sourcefossibot.com ↗2026-07-04 |
| 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
- Full scorecard, specs & price for Aferiy P280 →
- Full scorecard, specs & price for Fossibot F2400 →
- See more alternatives to Aferiy P280 →
- See more alternatives to Fossibot F2400 →
- 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 →