Best Solar Panel for the EcoFlow RIVER 3: 45W, 60W or Two 60W in Parallel

The EcoFlow RIVER 3 works with the EcoFlow 45W Portable Solar Panel or the EcoFlow 60W panel, and two 60W panels in parallel fill its 110W maximum. EcoFlow says the 45W panel alone fully charges the RIVER 3 in 6.3 hours of peak sun.

RIVER 3 solar input at a glance

The EcoFlow RIVER 3 is a 245Wh, 300W (600W X-Boost) station. Its solar/car input is an XT60i port rated 11-30V, 8A, 110W max. The manual says to keep the panel’s output voltage under 30V and notes that no solar cable comes with the station, so you will use the cable that comes with the panel.

EcoFlow publishes two solar times for this model:

• 110W of solar: 0-100% in as fast as 2.6 hours (EcoFlow UK spec table)
• EcoFlow 45W panel: full charge in 6.3 hours during peak sunlight hours (EcoFlow PH)

Both are best-case lab or ideal-sun figures.

Compatibility table

EcoFlow’s pages list different electrical figures for the 60W panel, so our check uses the worst case (25.6V, 3.5A). Two in parallel come to 25.6V and 7A, still inside the limits. Check the label on your panel.

How the published times compare with simple maths

Simple division gives a floor, not a forecast:

• 245Wh ÷ 45W ≈ 5.4 hours. EcoFlow says 6.3 hours, about 16% longer.
• 245Wh ÷ 110W ≈ 2.2 hours. EcoFlow says 2.6 hours, about 17% longer.

That gap covers charging losses. For your own planning, add about 20% to the simple figure, and remember panels often give less than their rated watts in real sun. With an example of 4–5 peak sun hours, one 45W panel may not finish a full charge in a single day; by the same estimate, two 60W panels in parallel (about 2.7 hours with the allowance) fit inside one clear day. These are estimates, not test results.

Picking between 45W and 60W

• 45W: 1.4 kg, with a 15W USB-C output for charging a phone straight from the panel. The easy pick to keep a router or electric fan going through a short brownout.
• 60W, one or two: more watts, and two in parallel reach the 110W maximum. The listing we link is sold by “EcoFlow” on Lazada but is not the official EcoFlow PH store, and EcoFlow’s own specs for this panel vary. Check the label when it arrives.

Setup steps

1. Unfold the panel in direct sun with no shade on any cell.
2. Plug its included cable into the RIVER 3’s XT60i solar input.
3. For two 60W panels, connect both to the parallel connection cable first, then to the RIVER 3.
4. Confirm the solar watts on the screen. Keep the station in the shade and out of the rain.

Plug-and-play panels like these can be set up by the owner following the manual. Anything connected to the house wiring, breaker panel or roof needs a licensed electrician and an LGU electrical permit.

What to buy

• Power station: EcoFlow RIVER 3 on Shopee or EcoFlow RIVER 3 on Lazada
• Panel A: EcoFlow 45W Portable Solar Panel on Lazada
• Panel B: EcoFlow 60W Portable Solar Panel on Lazada (×2 plus a parallel cable for 110W)

Check today’s price. Full specs are in our EcoFlow RIVER 3 buyer guide, and the EcoFlow runtime calculator shows what 245Wh will run.

Bottom line

The RIVER 3 needs small, low-voltage panels. The 45W panel is EcoFlow’s own match (6.3 hours to full in peak sun), two 60W in parallel fill the 110W input, and anything from 125W up does not fit this model.