Fossibot F2400 vs EcoFlow DELTA 1300
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 $100 less. Whether that gap is worth closing depends on what you need to run.
- Fossibot F2400 holds 63% more energy (2048Wh vs 1260Wh), so it runs the same load proportionally longer.
- Fossibot F2400 has 1500W more surge headroom (4800W vs 3300W) — that decides whether a fridge, pump or AC compressor will actually start.
- EcoFlow DELTA 1300 is 17.6 lb lighter (30.9 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.
We'd skip the EcoFlow DELTA 1300 in this matchup. It costs $100 more than the Fossibot F2400 while matching or trailing it on capacity, surge and cycle life — there's no spec here that justifies the premium.
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
The original DELTA that put EcoFlow on the map. Fast-charging and high-surge for its day, but the NMC battery and lack of USB-C now show its age.
Best for: Bargain hunters who find it heavily discounted.
Where it falls short:
- NMC — ~800 cycles
- No USB-C PD
- 2-year warranty
| Spec | Fossibot F2400 | EcoFlow DELTA 1300 |
|---|---|---|
| Price | $899 | $999 |
| Capacity | 2048 Wh | 1260 Wh |
| Continuous output | 2200 W | 1800 W |
| Surge output | 4800 W | 3300 W |
| Battery | LiFePO4 | NMC |
| Rated cycles | 3,500 | 800 |
| Weight (lighter wins) | 48.5 lb | 30.9 lb |
| Max solar | 500 W | 400 W |
| Recharge time (faster wins) | 1h 30m | 1h 36m |
Runtime head-to-head
| Appliance | Fossibot F2400 | EcoFlow DELTA 1300 |
|---|---|---|
| Refrigerator | 29.0 hrs | 17.9 hrs |
| Mini fridge | 55.3 hrs | 34.0 hrs |
| Chest freezer | 21.8 hrs | 13.4 hrs |
| CPAP machine | 43.5 hrs | 26.8 hrs |
| Sump pump | 2.2 hrs | ❌ |