Fossibot F2400 vs EcoFlow DELTA mini
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
EcoFlow DELTA mini costs $300 less. Whether that gap is worth closing depends on what you need to run.
- Fossibot F2400 holds 132% more energy (2048Wh vs 882Wh), so it runs the same load proportionally longer.
- Fossibot F2400 has 2700W more surge headroom (4800W vs 2100W) — that decides whether a fridge, pump or AC compressor will actually start.
- EcoFlow DELTA mini is 24.9 lb lighter (23.6 lb vs 48.5 lb).
- Fossibot F2400 uses LiFePO4 while the other uses NMC — roughly double the usable cycle life.
- Fossibot F2400 is rated for 3,500 cycles vs 800 — meaningful if you cycle it daily.
If you plan to cycle the battery daily, think twice about the EcoFlow DELTA mini. Its NMC cells are rated for 800 cycles against the LiFePO4 rival's longer life — over years of regular use that's the more expensive unit, whatever the sticker says.
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
A compact NMC unit with a surprisingly strong 1,400W output for its size — but the 800-cycle battery means it won't age like the LiFePO4 field.
Best for: Buyers who want strong output in a light unit and won’t cycle it daily.
Where it falls short:
- NMC — ~800 cycles
- 2-year warranty, 300W solar input
| Spec | Fossibot F2400 | EcoFlow DELTA mini |
|---|---|---|
| Price | $899 | $599 |
| Capacity | 2048 Wh | 882 Wh |
| Continuous output | 2200 W | 1400 W |
| Surge output | 4800 W | 2100 W |
| Battery | LiFePO4 | NMC |
| Rated cycles | 3,500 | 800 |
| Weight (lighter wins) | 48.5 lb | 23.6 lb |
| Max solar | 500 W | 300 W |
| Recharge time (faster wins) | 1h 30m | 1h 36m |
Runtime head-to-head
| Appliance | Fossibot F2400 | EcoFlow DELTA mini |
|---|---|---|
| Refrigerator | 29.0 hrs | 12.5 hrs |
| Mini fridge | 55.3 hrs | 23.8 hrs |
| Chest freezer | 21.8 hrs | 9.4 hrs |
| CPAP machine | 43.5 hrs | 18.7 hrs |
| Sump pump | 2.2 hrs | ❌ |