EcoFlow RIVER 2 Max vs Pecron E3600LFP
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 Max costs $1400 less. Whether that gap is worth closing depends on what you need to run.
- Pecron E3600LFP holds 486% more energy (3000Wh vs 512Wh), so it runs the same load proportionally longer.
- Pecron E3600LFP has 6000W more surge headroom (7000W vs 1000W) — that decides whether a fridge, pump or AC compressor will actually start.
- EcoFlow RIVER 2 Max is 63.8 lb lighter (13.2 lb vs 77 lb).
- Pecron E3600LFP is rated for 3,500 cycles vs 3,000 — meaningful if you cycle it daily.
EcoFlow RIVER 2 Max
Double the River 2's capacity and output for $100 more. The sweet spot of EcoFlow's small line for anyone eyeing the occasional small appliance.
Best for: Campers who want headroom over a pure device charger without the size of a 1kWh unit.
Where it falls short:
- Still not enough output for heaters or compressors
- 220W solar input is modest
Pecron E3600LFP
A 3kWh unit with 3,600W output and 2,500W solar input at a price well below the flagship majors — strong specs, smaller brand.
Best for: Whole-home backup buyers chasing capacity and solar input per dollar.
Where it falls short:
- 77 lb
- Brand support and resale trail the majors
| Spec | EcoFlow RIVER 2 Max | Pecron E3600LFP |
|---|---|---|
| Price | $299 | $1699 |
| Capacity | 512 Wh | 3000 Wh |
| Continuous output | 500 W | 3600 W |
| Surge output | 1000 W | 7000 W |
| Battery | LiFePO4 | LiFePO4 |
| Rated cycles | 3,000 | 3,500 |
| Weight (lighter wins) | 13.2 lb | 77 lb |
| Max solar | 220 W | 2500 W |
| Recharge time (faster wins) | 1h | 2h |
Runtime head-to-head
| Appliance | EcoFlow RIVER 2 Max | Pecron E3600LFP |
|---|---|---|
| Refrigerator | 7.3 hrs | 42.5 hrs |
| Mini fridge | 13.8 hrs | 81.0 hrs |
| Chest freezer | 5.4 hrs | 31.9 hrs |
| CPAP machine | 10.9 hrs | 63.8 hrs |
| Sump pump | ❌ | 3.2 hrs |