EcoFlow DELTA 2 Max vs Ampace Andes 1500
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
Ampace Andes 1500 costs $600 less. Whether that gap is worth closing depends on what you need to run.
- EcoFlow DELTA 2 Max holds 40% more energy (2048Wh vs 1462Wh), so it runs the same load proportionally longer.
- EcoFlow DELTA 2 Max has 1200W more surge headroom (4800W vs 3600W) — that decides whether a fridge, pump or AC compressor will actually start.
- Ampace Andes 1500 is 13.2 lb lighter (36.8 lb vs 50 lb).
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
Backed by an Amperex/CATL cell pedigree, the Andes 1500 stands out on charge speed — 0-80% in well under an hour — and a light 36.8 lb for 1.5kWh.
Best for: Buyers who prize fast charging and low weight at 1.5kWh.
Where it falls short:
- Newer brand with a thinner track record
- Not expandable
| Spec | EcoFlow DELTA 2 Max | Ampace Andes 1500 |
|---|---|---|
| Price | $1599 | $999 |
| Capacity | 2048 Wh | 1462 Wh |
| Continuous output | 2400 W | 2000 W |
| Surge output | 4800 W | 3600 W |
| Battery | LiFePO4 | LiFePO4 |
| Rated cycles | 3,000 | 3,000 |
| Weight (lighter wins) | 50 lb | 36.8 lb |
| Max solar | 1000 W | 1000 W |
| Recharge time (faster wins) | 1h 30m | 55 min |
Runtime head-to-head
| Appliance | EcoFlow DELTA 2 Max | Ampace Andes 1500 |
|---|---|---|
| Refrigerator | 29.0 hrs | 20.7 hrs |
| Mini fridge | 55.3 hrs | 39.5 hrs |
| Chest freezer | 21.8 hrs | 15.5 hrs |
| CPAP machine | 43.5 hrs | 31.1 hrs |
| Sump pump | 2.2 hrs | 1.6 hrs |