EcoFlow RIVER 2 Pro 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 RIVER 2 Pro costs $400 less. Whether that gap is worth closing depends on what you need to run.
- Ampace Andes 1500 holds 90% more energy (1462Wh vs 768Wh), so it runs the same load proportionally longer.
- Ampace Andes 1500 has 2000W more surge headroom (3600W vs 1600W) — that decides whether a fridge, pump or AC compressor will actually start.
- EcoFlow RIVER 2 Pro is 19.8 lb lighter (17 lb vs 36.8 lb).
The one you actually carry. At 17 lb it is light enough for one hand, yet unlike the true pocket units it has the 800W of output needed to run small appliances rather than just charge devices.
Best for: Backpackers, photographers and festival-goers who care about weight above all.
Where it falls short:
- 800W output limits you to electronics and small loads
- 220W solar input means slow off-grid top-ups
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 RIVER 2 Pro | Ampace Andes 1500 |
|---|---|---|
| Price | $599 | $999 |
| Capacity | 768 Wh | 1462 Wh |
| Continuous output | 800 W | 2000 W |
| Surge output | 1600 W | 3600 W |
| Battery | LiFePO4 | LiFePO4 |
| Rated cycles | 3,000 | 3,000 |
| Weight (lighter wins) | 17 lb | 36.8 lb |
| Max solar | 220 W | 1000 W |
| Recharge time (faster wins) | 1h 10m | 55 min |
Runtime head-to-head
| Appliance | EcoFlow RIVER 2 Pro | Ampace Andes 1500 |
|---|---|---|
| Refrigerator | 10.9 hrs | 20.7 hrs |
| Mini fridge | 20.7 hrs | 39.5 hrs |
| Chest freezer | 8.2 hrs | 15.5 hrs |
| CPAP machine | 16.3 hrs | 31.1 hrs |
| Sump pump | ❌ | 1.6 hrs |