EcoFlow DELTA Pro 3 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 $2700 less. Whether that gap is worth closing depends on what you need to run.
- EcoFlow DELTA Pro 3 holds 180% more energy (4096Wh vs 1462Wh), so it runs the same load proportionally longer.
- EcoFlow DELTA Pro 3 has 4400W more surge headroom (8000W vs 3600W) — that decides whether a fridge, pump or AC compressor will actually start.
- Ampace Andes 1500 is 76.2 lb lighter (36.8 lb vs 113 lb).
- EcoFlow DELTA Pro 3 is rated for 4,000 cycles vs 3,000 — meaningful if you cycle it daily.
EcoFlow DELTA Pro 3
The most complete large unit here. 4096Wh, 4000W, 8000W surge and 2600W of solar — it does everything the F3800 does with less weight.
Best for: Whole-home backup buyers who want maximum solar recharge speed.
Where it falls short:
- $3,699 is a serious investment
- Overkill unless you're backing up a whole home
Ampace Andes 1500
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 Pro 3 | Ampace Andes 1500 |
|---|---|---|
| Price | $3699 | $999 |
| Capacity | 4096 Wh | 1462 Wh |
| Continuous output | 4000 W | 2000 W |
| Surge output | 8000 W | 3600 W |
| Battery | LiFePO4 | LiFePO4 |
| Rated cycles | 4,000 | 3,000 |
| Weight (lighter wins) | 113 lb | 36.8 lb |
| Max solar | 2600 W | 1000 W |
| Recharge time (faster wins) | 1h 40m | 55 min |
Runtime head-to-head
| Appliance | EcoFlow DELTA Pro 3 | Ampace Andes 1500 |
|---|---|---|
| Refrigerator | 58.0 hrs | 20.7 hrs |
| Mini fridge | 110.5 hrs | 39.5 hrs |
| Chest freezer | 43.5 hrs | 15.5 hrs |
| CPAP machine | 87.0 hrs | 31.1 hrs |
| Sump pump | 4.4 hrs | 1.6 hrs |