EcoFlow RIVER 2 Max vs DJI Power 500

Side-by-side on the specs that decide it — surge, capacity, runtime and price.

Both models' specs verified against manufacturer listings · Last updated July 29, 2026

The short answer

EcoFlow RIVER 2 Max costs $60 less. Whether that gap is worth closing depends on what you need to run.

DJI Power 500 has 1000W more surge headroom (2000W vs 1000W) — that decides whether a fridge, pump or AC compressor will actually start.
EcoFlow RIVER 2 Max is 3.1 lb lighter (13.2 lb vs 16.3 lb).
DJI Power 500 is rated for 4,000 cycles vs 3,000 — meaningful if you cycle it daily.

⚠️ Before you buy

Neither of these will start a sump pump or well pump — both surge below the ~3,400W those motors need. If home backup with pumps is your use case, look at higher-surge models instead of either of these.

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

DJI Power 500

The smaller DJI unit: 512Wh and 1,000W make it a capable weekend companion, with fast charging and low noise as the standouts.

Best for: Weekend campers and creators who want a light, fast-charging half-kWh unit.

Where it falls short:

512Wh is a single-day capacity
No expansion

Spec	EcoFlow RIVER 2 Max	DJI Power 500
Price	$299	$359
Capacity	512 Wh	512 Wh
Continuous output	500 W	1000 W
Surge output	1000 W	2000 W
Battery	LiFePO4	LiFePO4
Rated cycles	3,000	4,000
Weight (lighter wins)	13.2 lb	16.3 lb
Max solar	220 W	200 W
Recharge time (faster wins)	1h	1h 10m

Runtime head-to-head

Appliance	EcoFlow RIVER 2 Max	DJI Power 500
Refrigerator	7.3 hrs	7.3 hrs
Mini fridge	13.8 hrs	13.8 hrs
Chest freezer	5.4 hrs	5.4 hrs
CPAP machine	10.9 hrs	10.9 hrs
Sump pump	❌	❌

EcoFlow RIVER 2 Max
Price → DJI Power 500
Price →