Bluetti AC500 vs Fossibot F2400
Side-by-side on the specs that decide it — surge, capacity, runtime and price.
Both models' specs verified against manufacturer listings · Last updated
The short answer
Fossibot F2400 costs $1100 less. Whether that gap is worth closing depends on what you need to run.
- Bluetti AC500 holds 50% more energy (3072Wh vs 2048Wh), so it runs the same load proportionally longer.
- Bluetti AC500 has 5200W more surge headroom (10000W vs 4800W) — that decides whether a fridge, pump or AC compressor will actually start.
- Fossibot F2400 is 17.6 lb lighter (48.5 lb vs 66.1 lb).
Bluetti AC500
A modular home-backup system, not a portable unit — the AC500 has no internal battery at all until you add B300K packs.
Best for: Serious home-backup builds where you're designing a system, not buying an appliance.
Where it falls short:
- Requires separate battery packs to function at all — budget accordingly
- Total system cost climbs fast
Fossibot F2400
A value-brand 2kWh that undercuts the majors sharply while matching them on the specs that matter — 2,400W output and a strong 4,800W surge.
Best for: Bargain hunters who want high surge and 2kWh for the least money.
Where it falls short:
- 500W solar input is low for 2kWh
- Support network trails the majors
| Spec | Bluetti AC500 | Fossibot F2400 |
|---|---|---|
| Price | $1999 | $899 |
| Capacity | 3072 Wh | 2048 Wh |
| Continuous output | 5000 W | 2200 W |
| Surge output | 10000 W | 4800 W |
| Battery | LiFePO4 | LiFePO4 |
| Rated cycles | 3,500 | 3,500 |
| Weight (lighter wins) | 66.1 lb | 48.5 lb |
| Max solar | 3000 W | 500 W |
| Recharge time (faster wins) | 1h 45m | 1h 30m |
Runtime head-to-head
| Appliance | Bluetti AC500 | Fossibot F2400 |
|---|---|---|
| Refrigerator | 43.5 hrs | 29.0 hrs |
| Mini fridge | 82.9 hrs | 55.3 hrs |
| Chest freezer | 32.6 hrs | 21.8 hrs |
| CPAP machine | 65.3 hrs | 43.5 hrs |
| Sump pump | 3.3 hrs | 2.2 hrs |