EcoFlow RIVER 2 Pro: Runtime & Specs

Q: How long will the EcoFlow RIVER 2 Pro run a refrigerator?

About 11 hours for a typical ENERGY STAR full-size fridge averaging 58 W, assuming 85% inverter efficiency. Older or larger fridges use more. Try your own numbers.

Q: Can the EcoFlow RIVER 2 Pro run a microwave?

Not a full-size one. A typical 1,000 W microwave pulls about 1,500 W from the outlet, more than its 800 W continuous output. Its X-Boost mode is meant for simple heating devices, and microwaves may not work properly with it.

Q: How long does the EcoFlow RIVER 2 Pro take to charge?

EcoFlow's published charging claim: “0–100% in 70 min”. Max AC charging power is 940 W. With solar, it accepts up to 220 W. With 220 W of panels that's roughly 4.7 hours of good sun from empty.

Q: Is the EcoFlow RIVER 2 Pro expandable?

No. Its capacity is fixed at 768 Wh.

Q: Does the EcoFlow RIVER 2 Pro work as a UPS?

EcoFlow lists a 30 ms switchover time, so it can keep devices like routers and computers running when the power drops. Check that your specific device tolerates the switch before relying on it for anything critical.

The EcoFlow RIVER 2 Pro is a 768 Wh LiFePO4 power station with 800 W of continuous AC output and a 1,600 W surge rating. It runs a typical full-size fridge for about 11 hours. It has been replaced or discontinued, but many are still in use.

Capacity768 WhLiFePO4

Output800 W1,600 W surge

Solar input220 W11–50 V

Weight18.2 lbnot expandable

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How long will the RIVER 2 Pro run your appliances?

Nonstop runtime for one device at a time, using typical US wattages and 85% inverter efficiency. Devices marked ✕ can't run on this model.

Estimated runtime by appliance for the EcoFlow RIVER 2 Pro
Device	Avg draw	Runtime
LED light bulb	9 W	3 days
Phone charging	10 W	2.9 days
Wi-Fi router + modem	15 W	44 hours
Laptop	50 W	13 hours
CPAP + humidifier	30 W	22 hours
CPAP with heated humidifier + humidifier	60 W	11 hours
Starlink Standard	90 W	7.3 hours
TV	100 W	6.5 hours
Mini fridge	29 W	23 hours
Refrigerator	58 W	11 hours
Chest freezer	29 W	23 hours
Sump pump (1/3 HP)	160 W	4.1 hours
Sump pump (1/2 HP)	210 W	Too much power
Window AC	225 W	2.9 hours
Drip coffee maker	1,000 W	Too much power
Microwave	1,500 W	Too much power
Space heater	750 W	Too much power
Well pump	33 W	Needs 240 V

Fridges, freezers, pumps and AC units cycle on and off, so we use their average draw. Want a mix of devices on a schedule? Use the runtime calculator.

What the RIVER 2 Pro can't power

Microwave (1,000 W cooking power): needs 1,500 W running
Drip coffee maker (10–12 cup): needs 1,000 W running
Electric kettle (1.7 L): needs 1,500 W running
Toaster (2–4 slice): needs 1,000 W running
Induction burner (single, portable): needs 1,500 W running
Electric pressure cooker (6 qt, Instant Pot type): needs 1,000 W running
Space heater (portable, 1,500 W): needs 1,500 W running
Sump pump (1/2 HP): needs 1,050 W running
Well pump (1/2 HP submersible): needs 240 V
Circular saw (7-1/4 in.): needs 1,400 W running
EV Level 1 charging (120 V, 12 A): needs 1,440 W running

Solar charging time

Hours of good sun to charge from empty, assuming panels deliver 75% of their rating.

Panels	Power in	Hours of sun
100 W of panels	75 W	10 hours
200 W of panels	150 W	5.1 hours
220 W of panels	165 W	4.7 hours

Check panel voltage and wiring with the solar charging calculator.

Full specifications

Battery capacity	768 Wh
Battery chemistry	LiFePO4 (LFP)
Continuous AC output	800 W
Surge (peak) output	1,600 W
X-Boost (heating devices)	1,600 W
AC voltage	120V
AC outlets	—
USB-C ports	—
USB-A ports	—
12 V car outlet	—
Max solar input	220 W
Solar voltage range	11–50 V
Solar max current	13 A
Max AC charging power	940 W
AC charging time (maker claim)	0–100% in 70 min
Expandable	No
UPS / EPS switchover	30 ms
Cycle life	3,000 cycles
Weight	18.2 lb
Warranty	5 years

Notes: Port counts and car outlet not itemized on EcoFlow US spec table (DC out 12.6V 10A/3A/3A). No extra-battery support listed. EPS <30ms. Sold out on EcoFlow US.

Specs from EcoFlow's published documents, as of September 2026. Found an error? Tell us.

Sources

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Questions

How long will the EcoFlow RIVER 2 Pro run a refrigerator?

About 11 hours for a typical ENERGY STAR full-size fridge averaging 58 W, assuming 85% inverter efficiency. Older or larger fridges use more. Try your own numbers.

Can the EcoFlow RIVER 2 Pro run a microwave?

Not a full-size one. A typical 1,000 W microwave pulls about 1,500 W from the outlet, more than its 800 W continuous output. Its X-Boost mode is meant for simple heating devices, and microwaves may not work properly with it.

How long does the EcoFlow RIVER 2 Pro take to charge?

EcoFlow's published charging claim: “0–100% in 70 min”. Max AC charging power is 940 W. With solar, it accepts up to 220 W. With 220 W of panels that's roughly 4.7 hours of good sun from empty.

Is the EcoFlow RIVER 2 Pro expandable?

No. Its capacity is fixed at 768 Wh.

Does the EcoFlow RIVER 2 Pro work as a UPS?

EcoFlow lists a 30 ms switchover time, so it can keep devices like routers and computers running when the power drops. Check that your specific device tolerates the switch before relying on it for anything critical.