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EcoFlow River 3 Plus

$299, or $1.05 per watt-hour.

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Capacity
286Wh
AC output
600W, 120V
Weight
10.4 lb
Battery life
3,000 cycles
Wall charging
60 min
Max solar input
220W
UPS switchover
10 ms or less
Fastest USB-C port
100W
12V DC output
126W
Expandable
Up to 858Wh with add-on batteries

Specs and price are from EcoFlow's own site, checked 2026-10-04.

What it can run, and for how long

DeviceRuntimeIf it cannot, why
CPAP, humidifier off0.8 nights
CPAP with heated humidifier0.4 nights
Mini fridge9.3 hr
Full-size refrigerator4.1 hr
Chest freezer8.1 hr
12V compressor fridge0.7 days
1/3 HP sump pumpCan't run itneeds 800W, outlet tops out at 600W
Wi-Fi router and modem12.2 hr
Starlink Mini8.6 hr
Starlink Standard dish and router2.9 hr
Gas furnace blower1.0 hr
5,000 BTU window air conditioner0.8 hr
Space heater on high (1,500W)Can't run itneeds 1,500W, outlet tops out at 600W
Space heater on low (750W)Can't run itneeds 750W, outlet tops out at 600W
Electric blanket0.5 nights
Drip coffee makerCan't run itneeds 1,000W, outlet tops out at 600W
MicrowaveCan't run itneeds 1,500W, outlet tops out at 600W
Laptop3 full charges
15-amp circular sawCan't run itneeds 1,400W, outlet tops out at 600W
Diesel air heater1.3 nights
Outage essentials (fridge, internet, lights, phones)2.0 hr
BiPAP, humidifier off0.5 nights
Home oxygen concentrator0.7 hr
Electric kettleCan't run itneeds 1,500W, outlet tops out at 600W
Air fryerCan't run itneeds 1,500W, outlet tops out at 600W
Slow cooker on low1.4 hr
Thermoelectric cooler5.1 hr
Tent camping essentials0.9 days
Portable tent air conditioner1.0 hr
Pancake air compressorCan't run itneeds 1,250W, outlet tops out at 600W
Cordless tool battery charger2 5Ah packs
12V roof vent fan0.5 days
13,500 BTU RV air conditionerCan't run itneeds 1,400W, outlet tops out at 600W
Whole house, average useCan't run itneeds a 240V output, this model is 120V only
Gaming PC and monitor0.5 hr
Desktop 3D printer1.6 hr
Drone battery charging2 77Wh drone batteries
E-bike charging0 500Wh e-bike charges
Tailgate setup0.8 hr
240V well pumpCan't run itneeds a 240V output, this model is 120V only
Aquarium filter and heater3.0 hr

Calculated from capacity and typical device draw. See the method

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