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Best Solar Panel for the EcoFlow RIVER 2: What Fits Its 110W, 30V Input

Which EcoFlow solar panels work with the RIVER 2: the 45W and 60W panels fit its 11-30V, 8A, 110W input. Bigger panels exceed its limits. Setup and charge times.

By SmartEnergyPH Editorial 3 min read

Checked against the sources listed below. How we research.

Key takeaways

  • The RIVER 2 solar input accepts 11-30V, up to 8A and 110W. Small panels are the right match.
  • Verified fits: one EcoFlow 45W panel (45W usable), one 60W panel (60W), or two 60W panels in parallel (110W, the input's maximum).
  • Do not use the 125W bifacial, 160W, 220W, 400W Lightweight or 400W rigid panels on a RIVER 2: each exceeds its 30V or 8A limit.
  • Example estimate: 256Wh ÷ 45W ≈ 5.7 hours of strong sun, about 6.8 hours with a 20% loss allowance.
On this page
  1. The RIVER 2’s solar limits
  2. Compatibility table
  3. Which one to pick
  4. Example charge-time estimate
  5. Setup steps
  6. What to buy
  7. Bottom line

The best EcoFlow panels for the RIVER 2 are the small ones: one EcoFlow 45W Portable Solar Panel (45W usable, cable included), or two EcoFlow 60W panels in parallel to reach the RIVER 2’s full 110W. Larger EcoFlow panels exceed the RIVER 2’s 30V or 8A input limit, so skip them.

The RIVER 2’s solar limits

The EcoFlow RIVER 2 has a 256Wh battery and one solar/car input (XT60i). EcoFlow’s manual lists it as 11-30V, 8A, 110W max, and warns to keep the panel’s output voltage under 30V “to avoid product damage”. That 30V ceiling is the main reason most big panels are off the list.

Compatibility table

Panel OK? Count and wiring Usable watts Cable / adapter Buy
EcoFlow 45W (Type-C) Yes 1, single 45W DC5521-to-XT60i, included Lazada
EcoFlow 60W Yes 1, single 60W Solar (MC4)-to-XT60i, included Lazada
EcoFlow 60W Yes 2, parallel 110W Included cable plus an EcoFlow Solar Parallel Connection Cable (sold separately) Lazada
EcoFlow 60W No 2, series — — Voc about 51V, above 30V
EcoFlow 125W bifacial No — — — 50V Voc, above 30V
EcoFlow 160W / 220W (single-face) No — — — 9.1A / 12.4A, above 8A
EcoFlow 400W Lightweight / 400W rigid No — — — Above both 30V and 8A

A note on the 60W panel: EcoFlow’s own pages give different electrical figures for it, so our check uses the worst-case numbers (25.6V, 3.5A). It still passes. Check the label on the panel you receive.

Which one to pick

  • Lightest and simplest: the 45W panel weighs 1.4 kg and has a USB-C output (15W) for charging a phone directly. It is the easy choice for a balcony or a camping bag.
  • Fastest the RIVER 2 allows: two 60W panels in parallel. Two panels give 120W on paper, but the RIVER 2 takes at most 110W. You will need the parallel cable as well.

Example charge-time estimate

These are estimates, not test results. Example assumptions: full sun on the panel, and a 20% allowance for losses (EcoFlow’s own published solar times for similar RIVER models run about 15–23% longer than capacity ÷ watts).

Setup Simple maths With 20% allowance
1 × 45W 256 ÷ 45 ≈ 5.7 h about 6.8 h
1 × 60W 256 ÷ 60 ≈ 4.3 h about 5.1 h
2 × 60W parallel (110W) 256 ÷ 110 ≈ 2.3 h about 2.8 h

Panels rarely give their full rated watts, so real days take longer. With an example of 4–5 peak sun hours, a single 45W panel may need more than one sunny day for a full charge. A rainy-season brownout is when this matters most, so check what you need to run with the EcoFlow runtime calculator.

Setup steps

  1. Unfold the panel in full sun, facing the sky, with no shade on any cell.
  2. Plug the panel’s cable into the RIVER 2’s solar input (XT60i). The 45W uses its DC5521-to-XT60i cable; the 60W uses its Solar-to-XT60i cable.
  3. For two 60W panels, join them with the parallel connection cable first, then connect the single output to the RIVER 2.
  4. Check the screen shows solar input watts. Keep the RIVER 2 itself in the shade.

Portable panels like these are plug-and-play, and you can set them up yourself by following the manual. Anything wired into the house, a breaker panel or the roof needs a licensed electrician and an LGU electrical permit.

What to buy

Check today’s price before buying. For full specs, see our EcoFlow RIVER 2 buyer guide.

Bottom line

The RIVER 2 has a small 110W, 30V input. A 45W panel is the simple pick, two 60W panels in parallel fill the input, and anything from 125W up is the wrong match for this model.

Run your own numbers

Frequently asked questions

Can I connect a 100W or 160W panel to the EcoFlow RIVER 2?
Not the EcoFlow 160W, 220W or 400W panels we checked. Their short-circuit current (9.1A to 13.79A) is above the RIVER 2's 8A input limit, and the 400W panels also exceed its 30V limit. Stick to panels whose open-circuit voltage stays under 30V and whose short-circuit current is 8A or less.
What is the maximum solar input of the RIVER 2?
110W, at 11-30V and up to 8A, according to EcoFlow's RIVER 2 manual and Philippine store page.
Does the 45W panel come with a cable for the RIVER 2?
Yes. The EcoFlow 45W Type-C panel includes a 1.5 m DC5521-to-XT60i cable, which plugs into the RIVER 2's solar input.
Can I use two 60W panels in series on the RIVER 2?
No. Two in series add up to about 51V open-circuit (using the highest official figure), far above the RIVER 2's 30V maximum. Two in parallel stay at about 25.6V and 7A, which is within its limits.

Sources

We link to primary sources wherever possible. Rates, rules and prices change — check the latest version with the publisher.

  1. EcoFlow RIVER 2 user manual (solar charging input 11-30V 8A, 110W max) (opens in a new tab) — EcoFlow
  2. EcoFlow RIVER 2 Portable Power Station (PH store specs) (opens in a new tab) — EcoFlow Philippines
  3. EcoFlow Solar to XT60i Charging Cable (compatibility list) (opens in a new tab) — EcoFlow Philippines
  4. EcoFlow 45W Portable Solar Panel (Type-C) user manual (opens in a new tab) — EcoFlow
  5. EcoFlow 45W Portable Solar Panel (PH store) (opens in a new tab) — EcoFlow Philippines
  6. EcoFlow 60W Portable Solar Panel (PH store spec table and box list) (opens in a new tab) — EcoFlow Philippines
  7. EcoFlow 60W Portable Solar Panel (CA store spec table) (opens in a new tab) — EcoFlow
  8. EcoFlow RIVER 3 (UPS) PH store (solar 0-100% in as fast as 2.6 hr), used for the loss allowance (opens in a new tab) — EcoFlow Philippines
  9. EcoFlow RIVER 3 Plus PH store (solar 0-100% in as fast as 1.5 hr), used for the loss allowance (opens in a new tab) — EcoFlow Philippines

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