EcoFlow DELTA Max 2000 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 $100 less. Whether that gap is worth closing depends on what you need to run.
- EcoFlow DELTA Max 2000 holds 38% more energy (2016Wh vs 1462Wh), so it runs the same load proportionally longer.
- Ampace Andes 1500 has 200W more surge headroom (3600W vs 3400W) — that decides whether a fridge, pump or AC compressor will actually start.
- Ampace Andes 1500 is 11.2 lb lighter (36.8 lb vs 48 lb).
- Ampace Andes 1500 uses LiFePO4 while the other uses NMC — roughly double the usable cycle life.
- Ampace Andes 1500 is rated for 3,000 cycles vs 800 — meaningful if you cycle it daily.
If you plan to cycle the battery daily, think twice about the EcoFlow DELTA Max 2000. 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 previous-generation 2kWh EcoFlow. Still capable and expandable, but its NMC cells and 800-cycle rating are a real step below the LiFePO4 DELTA 3 that replaced it.
Best for: Only at a steep discount against the DELTA 3 Max.
Where it falls short:
- NMC — roughly 800 cycles vs 4,000 for the DELTA 3 Max
- 2-year warranty
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 Max 2000 | Ampace Andes 1500 |
|---|---|---|
| Price | $1099 | $999 |
| Capacity | 2016 Wh | 1462 Wh |
| Continuous output | 2400 W | 2000 W |
| Surge output | 3400 W | 3600 W |
| Battery | NMC | LiFePO4 |
| Rated cycles | 800 | 3,000 |
| Weight (lighter wins) | 48 lb | 36.8 lb |
| Max solar | 800 W | 1000 W |
| Recharge time (faster wins) | 1h 48m | 55 min |
Runtime head-to-head
| Appliance | EcoFlow DELTA Max 2000 | Ampace Andes 1500 |
|---|---|---|
| Refrigerator | 28.6 hrs | 20.7 hrs |
| Mini fridge | 54.4 hrs | 39.5 hrs |
| Chest freezer | 21.4 hrs | 15.5 hrs |
| CPAP machine | 42.8 hrs | 31.1 hrs |
| Sump pump | 2.1 hrs | 1.6 hrs |