EcoFlow DELTA 3 Ultra Plus 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 $1000 less. Whether that gap is worth closing depends on what you need to run.
- EcoFlow DELTA 3 Ultra Plus holds 144% more energy (3072Wh vs 1260Wh), so it runs the same load proportionally longer.
- EcoFlow DELTA 3 Ultra Plus has 3900W more surge headroom (7200W vs 3300W) — that decides whether a fridge, pump or AC compressor will actually start.
- EcoFlow DELTA 1300 is 54.6 lb lighter (30.9 lb vs 85.5 lb).
- EcoFlow DELTA 3 Ultra Plus uses LiFePO4 while the other uses NMC — roughly double the usable cycle life.
- EcoFlow DELTA 3 Ultra Plus 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 Ultra's solar problem solved: same everything, but 1600W of PV input instead of 800W. That doubles your off-grid refill speed for $200.
Best for: Off-grid cabins and van builds that actually recharge from panels.
Where it falls short:
- $1999 approaches DELTA Pro 3 pricing
- 85.5 lb
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 Ultra Plus | EcoFlow DELTA 1300 |
|---|---|---|
| Price | $1999 | $999 |
| Capacity | 3072 Wh | 1260 Wh |
| Continuous output | 3600 W | 1800 W |
| Surge output | 7200 W | 3300 W |
| Battery | LiFePO4 | NMC |
| Rated cycles | 4,000 | 800 |
| Weight (lighter wins) | 85.5 lb | 30.9 lb |
| Max solar | 1600 W | 400 W |
| Recharge time (faster wins) | 1h 30m | 1h 36m |
Runtime head-to-head
| Appliance | EcoFlow DELTA 3 Ultra Plus | EcoFlow DELTA 1300 |
|---|---|---|
| Refrigerator | 43.5 hrs | 17.9 hrs |
| Mini fridge | 82.9 hrs | 34.0 hrs |
| Chest freezer | 32.6 hrs | 13.4 hrs |
| CPAP machine | 65.3 hrs | 26.8 hrs |
| Sump pump | 3.3 hrs | ❌ |