EcoFlow DELTA 3 Max 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
EcoFlow DELTA 1300 costs $100 less. Whether that gap is worth closing depends on what you need to run.
- EcoFlow DELTA 3 Max holds 63% more energy (2048Wh vs 1260Wh), so it runs the same load proportionally longer.
- EcoFlow DELTA 3 Max has 1500W more surge headroom (4800W vs 3300W) — that decides whether a fridge, pump or AC compressor will actually start.
- EcoFlow DELTA 1300 is 24.2 lb lighter (30.9 lb vs 55.1 lb).
- EcoFlow DELTA 3 Max uses LiFePO4 while the other uses NMC — roughly double the usable cycle life.
- EcoFlow DELTA 3 Max is rated for 4,000 cycles vs 800 — meaningful if you cycle it daily.
If you plan to cycle the battery daily, think twice about the EcoFlow DELTA 1300. 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.
The value leader in the 2kWh class. Same 4800W surge as the DELTA 2 Max at $500 less, with 1000 more cycles.
Best for: Home backup buyers who want compressor-starting surge without paying flagship prices.
Where it falls short:
- 55 lb is a two-hand lift
- Only marginally lighter than heavier rivals
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 | EcoFlow DELTA 3 Max | EcoFlow DELTA 1300 |
|---|---|---|
| Price | $1099 | $999 |
| Capacity | 2048 Wh | 1260 Wh |
| Continuous output | 2400 W | 1800 W |
| Surge output | 4800 W | 3300 W |
| Battery | LiFePO4 | NMC |
| Rated cycles | 4,000 | 800 |
| Weight (lighter wins) | 55.1 lb | 30.9 lb |
| Max solar | 1000 W | 400 W |
| Recharge time (faster wins) | 1h 22m | 1h 36m |
Runtime head-to-head
| Appliance | EcoFlow DELTA 3 Max | 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 | ❌ |