EcoFlow DELTA Pro vs Bluetti AC70
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
Bluetti AC70 costs $2700 less. Whether that gap is worth closing depends on what you need to run.
- EcoFlow DELTA Pro holds 369% more energy (3600Wh vs 768Wh), so it runs the same load proportionally longer.
- EcoFlow DELTA Pro has 5200W more surge headroom (7200W vs 2000W) — that decides whether a fridge, pump or AC compressor will actually start.
- Bluetti AC70 is 77.0 lb lighter (22 lb vs 99 lb).
- EcoFlow DELTA Pro is rated for 3,500 cycles vs 3,000 — meaningful if you cycle it daily.
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
Bluetti AC70
768Wh with 1000W output at $499 — it does what the EcoFlow River 2 Pro does, with more output and more weight.
Best for: Campers who need to run a small fridge, not just charge devices.
Where it falls short:
- 22 lb — 5 lb heavier than the River 2 Pro
- Not expandable
| Spec | EcoFlow DELTA Pro | Bluetti AC70 |
|---|---|---|
| Price | $3199 | $499 |
| Capacity | 3600 Wh | 768 Wh |
| Continuous output | 3600 W | 1000 W |
| Surge output | 7200 W | 2000 W |
| Battery | LiFePO4 | LiFePO4 |
| Rated cycles | 3,500 | 3,000 |
| Weight (lighter wins) | 99 lb | 22 lb |
| Max solar | 1600 W | 500 W |
| Recharge time (faster wins) | 2h 45m | 1h 15m |
Runtime head-to-head
| Appliance | EcoFlow DELTA Pro | Bluetti AC70 |
|---|---|---|
| Refrigerator | 51.0 hrs | 10.9 hrs |
| Mini fridge | 97.1 hrs | 20.7 hrs |
| Chest freezer | 38.3 hrs | 8.2 hrs |
| CPAP machine | 76.5 hrs | 16.3 hrs |
| Sump pump | 3.8 hrs | ❌ |