EcoFlow DELTA mini 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
EcoFlow DELTA mini costs $400 less. Whether that gap is worth closing depends on what you need to run.
- Ampace Andes 1500 holds 66% more energy (1462Wh vs 882Wh), so it runs the same load proportionally longer.
- Ampace Andes 1500 has 1500W more surge headroom (3600W vs 2100W) — that decides whether a fridge, pump or AC compressor will actually start.
- EcoFlow DELTA mini is 13.2 lb lighter (23.6 lb vs 36.8 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 mini. 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.
A compact NMC unit with a surprisingly strong 1,400W output for its size — but the 800-cycle battery means it won't age like the LiFePO4 field.
Best for: Buyers who want strong output in a light unit and won’t cycle it daily.
Where it falls short:
- NMC — ~800 cycles
- 2-year warranty, 300W solar input
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 mini | Ampace Andes 1500 |
|---|---|---|
| Price | $599 | $999 |
| Capacity | 882 Wh | 1462 Wh |
| Continuous output | 1400 W | 2000 W |
| Surge output | 2100 W | 3600 W |
| Battery | NMC | LiFePO4 |
| Rated cycles | 800 | 3,000 |
| Weight (lighter wins) | 23.6 lb | 36.8 lb |
| Max solar | 300 W | 1000 W |
| Recharge time (faster wins) | 1h 36m | 55 min |
Runtime head-to-head
| Appliance | EcoFlow DELTA mini | Ampace Andes 1500 |
|---|---|---|
| Refrigerator | 12.5 hrs | 20.7 hrs |
| Mini fridge | 23.8 hrs | 39.5 hrs |
| Chest freezer | 9.4 hrs | 15.5 hrs |
| CPAP machine | 18.7 hrs | 31.1 hrs |
| Sump pump | ❌ | 1.6 hrs |