Power Station Chart

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EcoFlow RIVER 3 Plus

286 Wh and 600 W of AC, on an LFP battery. It has the highest solar input of the 14 stations in the under 300 Wh class.

By the Power Station Chart team, from EcoFlow's manuals and spec pages. Reviewed before publishing; last reviewed October 31, 2026.

The RIVER 3 Plus in brief

The RIVER 3 Plus takes 220 W of solar, the highest input among the 14 stations under 300 Wh, through an XT60i port that handles 11 V to 55 V at up to 13 A. That is a lot of input for 286 Wh of LFP storage, and it explains the 1.7 hours the maker lists for a full solar refill. The AC side delivers 600 W, rising to 1,200 W for short surges, with a 10 ms switchover for UPS use. The case weighs 10.36 lb, and EcoFlow lists an operating range of 14 F to 113 F. EcoFlow also sells two add-on batteries, an EB300 and an EB600, that raise the system to 572 Wh or 858 Wh.

How long the RIVER 3 Plus runs things

Times use about 85% of the rated capacity, the part left after inverter and battery losses. With 243 Wh usable and 600 W of AC, a 192 W chest freezer lasts 6.2 h to 11 h, but anything near 875 W, like a furnace blower, gets only 17 min to 49 min.

Refrigerator2.6 h to 7 h
Gas furnace blowerToo much draw
Starlink2.4 h to 3.2 h
Sump pumpToo much draw
TV2.4 h to 3.4 h
E-bike charger1.4 h to 2.5 h
Laptop2.5 h to 6.9 h
MicrowaveToo much draw
Space heaterToo much draw
Electric blanket1.1 h to 2.2 h
Coffee makerToo much draw

Work out your own mix of loads. A red bar means it draws more than the 600 W this station can supply.

How fast it refills

Wall outlet1 h
Solar at its full input1.7 h
12 V car outlet3 h

Solar time assumes panels reach 75% of their rating. Figure it for your state and panels.

Solar panels for the RIVER 3 Plus

Its XT60i port takes 11 to 55 V, up to 13 A and 220 W. A panel's voltage rises in the cold, so the marks below show each one at 14 F, and a pass here keeps 10% of headroom under the maximum.

11 V 55 V maximum 49 V, 2 x 110W Portable Solar Panel 48 V, 2 x 160W Portable Solar Panel 49 V, 2 x 220W Bifacial Portable So... 42 V, 400W Rigid Solar Panel 46 V, 2 x NextGen 160W Portable Sol... 46 V, 2 x NextGen 160W Bifacial Por... 47 V, 2 x NextGen 220W Portable Sol...

"Inside the window" compares printed numbers. It is not a maker's approval. Check any panel or layout, or read how the voltage window works.

Extra batteries for the RIVER 3 Plus

Who the RIVER 3 Plus suits

Choose it if solar is the point and you want room to grow: a panel or two and one extra battery. It also suits an RV with a 12V fridge, which the listing puts at 26 h to 27 h. For longer loads, the RIVER 3 at 245 Wh is limited to 300 W and 110 W of solar. If you need more than 600 W of AC output, move up to a Delta-class unit instead.

Full RIVER 3 Plus specifications

Capacity286 Wh
Usable after lossesabout 243 Wh
Battery typeLFP
Rated cycles3,000 to 80% capacity
AC output600 W
AC surge1,200 W
Boost mode1,200 W
240 Vno
UPS switchover10 ms
AC outlets3
USB-C ports1, up to 100 W
USB-A ports2
12 V car port10 A
Wall charging380 W, 1 h to full
Car charging input11 to 55 V, 8 A
Weight10.36 lb
Watt-hours per pound28
Size9.21 x 9.13 x 5.75 in
Operating temperature14 to 113 F
Noise30 dB
Warranty5 years
Extra batteriesyes, to 858 Wh

What these figures mean: usable watt-hours, surge and continuous watts, battery types, switchover time, car charging and UL listings.

Choosing within the EcoFlow RIVER 3

ModelCapacityAC outputSolar inputWeight
RIVER 3245 Wh300 W110 W7.72 lb
RIVER 3 Plus286 Wh600 W220 W10.36 lb
RIVER 3 Plus Wireless286 Wh600 W220 W11.46 lb

Closest alternatives by capacity

FAQ

How much solar can the RIVER 3 Plus take?

Up to 220 W, within 11 V to 55 V and 13 A. Two of the 110 W, 160 W or 220 W portable panels in series stay inside the voltage window, and a 400 W rigid panel can connect alone.

Can I add more capacity to the RIVER 3 Plus?

Yes. The maker supports one Smart Extra Battery, either the EB300 at 286 Wh or the EB600 at 572 Wh. That takes the system to 572 Wh or 858 Wh.

Can the RIVER 3 Plus run a space heater?

No. A space heater draws 1575 W, which is more than the 600 W output, so it is not a fit.

How fast does it fill from the wall?

About 1 hour at 380 W.

Where these figures come from

Every figure above is EcoFlow's own unless a note says otherwise.

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