EcoFlow DELTA 2 Max vs EcoFlow DELTA Pro
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 2 Max costs $1600 less. Whether that gap is worth closing depends on what you need to run.
- EcoFlow DELTA Pro holds 76% more energy (3600Wh vs 2048Wh), so it runs the same load proportionally longer.
- EcoFlow DELTA Pro has 2400W more surge headroom (7200W vs 4800W) — that decides whether a fridge, pump or AC compressor will actually start.
- EcoFlow DELTA 2 Max is 49.0 lb lighter (50 lb vs 99 lb).
- EcoFlow DELTA Pro is rated for 3,500 cycles vs 3,000 — meaningful if you cycle it daily.
EcoFlow DELTA 2 Max
The surge sleeper. At 4800W it starts loads that stations twice its price can't — and most spec sheets bury that number behind the X-Boost figure.
Best for: Home backup where something with a compressor — fridge, freezer, window AC — has to start reliably.
Where it falls short:
- 50 lb is heavy for its capacity
- Marketing leads with the 3400W X-Boost number, which understates it
EcoFlow DELTA Pro
The previous-generation flagship, now mostly worth buying on discount. The Pro 3 beats it on nearly every axis.
Best for: Bargain hunters who find it steeply discounted against the Pro 3.
Where it falls short:
- 99 lb and 165-minute recharge — both beaten by the Pro 3
- Aging platform; expect it to be phased out
| Spec | EcoFlow DELTA 2 Max | EcoFlow DELTA Pro |
|---|---|---|
| Price | $1599 | $3199 |
| Capacity | 2048 Wh | 3600 Wh |
| Continuous output | 2400 W | 3600 W |
| Surge output | 4800 W | 7200 W |
| Battery | LiFePO4 | LiFePO4 |
| Rated cycles | 3,000 | 3,500 |
| Weight (lighter wins) | 50 lb | 99 lb |
| Max solar | 1000 W | 1600 W |
| Recharge time (faster wins) | 1h 30m | 2h 45m |
Runtime head-to-head
| Appliance | EcoFlow DELTA 2 Max | EcoFlow DELTA Pro |
|---|---|---|
| Refrigerator | 29.0 hrs | 51.0 hrs |
| Mini fridge | 55.3 hrs | 97.1 hrs |
| Chest freezer | 21.8 hrs | 38.3 hrs |
| CPAP machine | 43.5 hrs | 76.5 hrs |
| Sump pump | 2.2 hrs | 3.8 hrs |