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Brand Panel Guide · Updated November 2026

EcoFlow Solar Panels Compared: Every Portable Panel, and Which One Fits Your Station

EcoFlow’s portable solar panels run from 45W to 400W, with 110W, 160W and 220W (single-sided and bifacial) models in between. For most Delta owners the best buy is two 220W panels wired in series, which fills one 500W input and stays under the 60V limit. River owners should match the panel to a smaller input: the 110W suits the River 3, and a single 220W suits the River 3 Plus. The 400W panel only fits Delta-class inputs.

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By Alex Rivera Reviewed & approved by Juhi Sahni Updated: Solar Panels

The EcoFlow Portable Panel Lineup: Specs Side by Side

Two numbers decide which station a panel can plug into: its open-circuit voltage (Voc), which must stay under the station’s input voltage ceiling, and its short-circuit current (Isc), which the station will cap at its amp limit. Weight, folded size and connector decide whether you will actually carry it. Figures below come from EcoFlow’s own spec sheets and Amazon listings, cross-checked against retailer spec tables (sources are listed under the table).

Panel Voc / Isc Weight Folded size IP Connector Score Amazon
45W 25.6V / 2.06A 3.1 lb 8.7 × 12.2 × 1.8 in IP68 Solar lead + XT60i cable 76/100 Check price at Amazon →
110W 21.8V / 6.5A 8.8 lb 16.5 × 20.2 × 0.9 in IP68 Solar lead + XT60 cable 72/100 Check price at Amazon →
160W 21.4V / 9.6A About 15.4 lb (one retailer listing) 16.5 × 26.8 × 0.9 in IP67 or IP68 (listings differ) MC4-style solar lead Not rated Bundles only
220W bifacial 21.8V / 13A (front) 20.9 lb† Not consistently published IP68 Solar lead + XT60 or XT60i cable‡ 78/100 $549.00
NextGen 220W About 21.5V / not published§ 15.9 lb Not consistently published IP68 Solar lead + XT60i cable 82/100 Check price at Amazon →
400W 48V / 11A 35.3 lb 41.7 × 24.4 × 1.3 in IP68 (panel body) Solar lead + XT60 cable 91/100 Unavailable on Nov 7

† The weight comes from our product data for the original 220W bifacial. The Amazon listing for this ASIN now describes 15.4 lb and higher-efficiency cells, which matches EcoFlow’s NextGen 220W bifacial spec sheet (15.4 lb, 21.5V Voc, 12.4A front Isc). We could not confirm which revision ships, so we kept the original figures and used the higher 21.8V Voc in the pairing math, which is the conservative choice.

‡ Connector: EcoFlow’s spec sheets call the panel lead a “solar connector” and retailers describe it as MC4-type. Older listings for the 220W bifacial bundle an XT60 cable; EcoFlow’s NextGen bifacial page lists an XT60i cable. Which cable comes in the box for this ASIN is unconfirmed. It matters little in practice, because EcoFlow sells both plug types for its own stations.

§ EcoFlow does not publish a separate Voc for the single-sided NextGen 220W. 21.5V is the NextGen bifacial figure, and a retailer listing for this model (EFSOLAR220W-NS) gives 21.5V without saying whether it is Voc. The pairing math uses 21.8V to be safe.

Sources: Amazon listing bullets (checked Nov 7, 2026); EcoFlow NextGen 220W bifacial spec sheet; 160W figures from Manel Service and a European catalog listing (21.4V / 9.6A); 400W figures from Groupsumi (about 48V / 11A, 106 × 62 × 3.3 cm folded) plus the Amazon listing (35.3 lb, IP68 on the panel body only); 45W Voc and Isc from Off Grid Stores and Norwich Camping listings; 110W Isc and folded size from Norwall and a German retailer listing.

The EcoFlow Panels Worth Buying on Amazon Right Now

These four had a new-condition offer in Amazon’s buy box when we checked on November 7, 2026. Scores come from our panel scoring framework (output, efficiency, weight, durability, connector and value) and are the same numbers used everywhere else on the site.

EcoFlow NextGen 220W Portable Solar Panel
Best all-round EcoFlow panel

EcoFlow NextGen 220W Portable Solar Panel

82/100
220W panel IP68 15.9 lb

The one most Delta owners should start with. It carries the same 220W rating as the bifacial model at 15.9 lb, with an IP68 rating, an ETFE surface and a 30–60° kickstand, and EcoFlow ships an XT60i charging cable in the box. Two of them wired in series fill one 500W Delta input almost exactly (see the pairing table). It is single-sided, so there is no rear-side bonus from reflected light.

See today’s price on Amazon
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EcoFlow 220W Portable Solar Panel
Bifacial pick

EcoFlow 220W Portable Solar Panel

78/100
220W panel IP68 20.9 lb

The 220W bifacial panel collects some reflected light from its back face, which helps over sand, snow, concrete or a light-coloured tarp and does little on dark grass. Our data lists 20.9 lb and a 21.8V open-circuit voltage for this model; the Amazon listing text now matches EcoFlow’s lighter NextGen bifacial revision (15.4 lb), and we could not confirm which revision ships, so check the listing before you buy.

$549.00Current price on Amazon
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EcoFlow 110W Portable Solar Panel
Best match for River 3

EcoFlow 110W Portable Solar Panel

72/100
110W panel IP68 8.8 lb

At 110W, 8.8 lb and 21.8V open-circuit, this panel fits the River 3’s 110W, 30V input exactly and stays inside every River and Delta voltage window. On a Delta, four of them in a two-series, two-parallel layout land at 440W and about 13A, inside one 500W port, which suits people who would rather carry four light panels than two heavy ones.

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EcoFlow 45W Portable Solar Panel
Lightest

EcoFlow 45W Portable Solar Panel

76/100
45W panel IP68 3.1 lb

A 3.1 lb, four-fold panel with grommets and snap hooks so it can hang off a pack or a car window. At 45W it tops up phones, lights and small River stations; it will not meaningfully recharge a Delta. Its 25.6V open-circuit voltage is higher than the bigger panels, which matters on the River 3: one panel is fine, two in series are not.

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Nameplate wattage is measured under standard test conditions. Plan on roughly 75–80% of it in good sun.

Which EcoFlow Panel for Which EcoFlow Station

This is the table EcoFlow’s own pages don’t give you. Each row takes a station’s published solar input (voltage window, amp limit and watt cap per port) and works out the largest EcoFlow panel setup that stays inside it. Where retailer spec sheets disagree on a station’s voltage ceiling, we used the lower figure.

Station Solar input (per port) Best EcoFlow setup The math
River 3 1 × XT60, 11–30V, 8A, 110W 1 × 110W (or 2 × 45W in parallel) 110W: 21.8V (about 24V cold) < 30V; 6.5A < 8A. Two 110W in series = 43.6V, over 30V. The 400W (48V) is over the limit. A 220W works but is capped at 110W.
River 3 Plus 1 port, 220W, 13A, 11–50V (some sheets say 55V) 1 × 220W, or 2 × 110W in series 220W: 21.8V, 13A sits right at the 13A cap. 2 × 110W in series: 43.6V (about 48V cold) < 50V at 6.5A. The 400W’s 48V Voc rises to about 53V on a cold morning, which leaves no margin under 50V, so skip it.
River 2 Pro 1 × XT60, 220W, 11–50V, 13A Same as River 3 Plus Same window and cap, so the same answer: one 220W, or two 110W in series.
Delta 2 / Delta 3 Classic 1 port, 11–60V, 15A, 500W 2 × 220W in series (440W), or 1 × 400W 2 × 21.8V = 43.6V (about 48V cold) < 60V; 13A < 15A. Three 220W in series = 65.4V, over the limit. Two 220W in parallel = 26A, so the station caps the current at 15A. 400W: 48V (about 53V cold), 11A. Four 110W in a 2S2P layout: 43.6V, 13A, 440W.
Delta 3 Plus / Delta 2 Max 2 ports, each 11–60V, 15A, 500W (1,000W total) 2 × 220W in series on each port (880W), or 1 × 400W per port (800W) Each port follows the Delta 2 math. Two 400W in series on one port = 96V, so use one 400W per port.
Delta Pro 3 High-voltage: 30–150V, 15A, 1,600W. Low-voltage: 11–60V, 20A, 1,000W High-voltage: 6 × 220W in series (1,320W). Low-voltage: 2 × 220W in series (440W) or 1 × 400W 6 × 21.8V = 130.8V (about 144V cold) < 150V; 7 × = 152.6V, over the limit. A single 21V panel is below the 30V minimum, so the high-voltage port needs at least two in series. 400W: 2 in series = 96V (800W); 3 = 144V, about 158V cold, too close to the limit.

Own a Delta Pro 3? Our guide to the best solar panels for the EcoFlow Delta Pro 3 works through full setups for both of its ports, including Renogy and BLUETTI panels, with charge times.

Pairing 400W panels with a bigger station? Our EcoFlow DELTA Pro solar generator math covers a four-panel array (two in series, two strings) on the original DELTA Pro’s 150V input, and the DELTA Pro Ultra solar generator section works through arrays of up to 12 panels across its 450V and 150V ports.

Station input sources: River 3 at 11–30V / 8A / 110W per Outbound Power and several retailer spec tables (one lists 11–50V; we used the lower figure). River 3 Plus at 220W / 13A per Footprint Hero (11–55V) and other retailer guides (11–50V). River 2 Pro at 11–50V / 13A per the spec sheet cited in our River 2 Pro review. Delta 2 at 11–60V / 15A / 500W per EcoFlow’s Delta 2 spec sheet (via Clifton Cameras) and Solarkontor. Delta 3 Classic, Delta 3 Plus and Delta 2 Max figures are the ones cited in our reviews of each. Delta Pro 3 port figures per EcoFlow’s answer on Best Buy and Footprint Hero. We left out the Delta 3 Max because published sources disagree on whether it has one solar input or two.

Series or Parallel? How the Math Works

Wire panels in series (positive to negative) and the voltages add while the current stays the same. Wire them in parallel (with a Y-branch connector) and the currents add while the voltage stays the same. EcoFlow’s 110W, 160W and 220W panels all sit around 21–22V, so on a station with a 60V ceiling, series is how you fit two of them into one port without hitting the amp limit.

Step 1: Voltage check, with cold-weather headroom

Multiply the panel’s Voc by the number of panels in series, then add about 10%. Panel voltage rises as cells get colder. Published temperature coefficients for crystalline panels run about −0.25% to −0.30% per °C (EcoFlow’s Amazon listing for its 175W rigid panel gives −0.30%/°C), so a sunny morning at about −10°C (14°F) is roughly 35°C below test conditions and pushes Voc up about 10%. Example: 2 × 220W = 43.6V, × 1.1 ≈ 48V. That is safe under 60V. Three in series = 65.4V before the cold adjustment, which is already over. Going over the voltage limit is the mistake that can damage a station’s charge controller.

Step 2: Current check

Add the Isc of panels in parallel. Two 220W panels in parallel come to about 26A, well past a Delta port’s 15A, so the station limits what it draws and the extra panel adds little in full sun. Exceeding the amp limit usually just means clipped charging rather than damage. Bifacial panels can push current above the front-side figure when the back face catches reflected light, which is one more reason to put them in series rather than parallel.

Step 3: Watt cap

A slightly oversized array (440W of panels on a 500W port, or a 220W panel on the River 3’s 110W input) is fine: the station takes what it can use. Real panels rarely hit nameplate, so a modest oversize helps fill the port in average sun.

Two catches

Shade on one panel in a series string drags down the whole string, so keep series panels side by side in the same light. And the 45W panel’s Type-C version (a different ASIN) is listed on Amazon as “unable to connect in series.” Treat small panels as parallel-only unless EcoFlow’s manual for your exact model says otherwise.

For connectors, MPPT and wiring diagrams in more depth, see our solar panel setup guide.

The EcoFlow 400W Panel: Who It Is For

The 400W is EcoFlow’s biggest folding panel and the highest-scoring panel in our data (91/100). It weighs 35.3 lb, carries an IP68 rating on the panel body (the listing says the junction box and connectors should not be submerged), and runs at about 48V open-circuit. That voltage is the whole story: it is ideal for a Delta port (one panel delivers up to 400W into a 500W, 60V input) and wrong for a River, where it is over or too close to the voltage ceiling.

When we checked on November 7, 2026, Amazon showed the 400W as currently unavailable, with no new-condition offer, so we are not linking to it here. If you want 400W from one carry, two NextGen 220W panels in series give you 440W of nameplate on a Delta port at 31.8 lb combined, slightly less than the single 400W. If you want a single 400W panel from any brand, our best 400 watt solar panel guide compares the options and the voltage checks for each.

Check NextGen 220W Price on Amazon →

Best Solar Panels for the EcoFlow Delta 2 and Delta 2 Max

The Delta 2 has one solar input rated 11–60V, 15A and 500W. The best EcoFlow match is two 220W panels in series: 440W of nameplate at about 43.6V and 13A, inside all three limits. One 400W panel is the simpler single-panel option. At a realistic 75–80% of nameplate (about 330–350W from the pair), recharging the Delta 2’s 1,024Wh from empty takes roughly 3–3.5 hours of strong sun once charging losses are included, and longer in winter or under haze.

The Delta 2 Max doubles that: two inputs with the same per-port limits, so four 220W panels (two series pairs, one pair per port) or two 400W panels (one per port). Our Delta 2 Max review covers the rest of the station. If you are still choosing a station, which EcoFlow Delta to buy compares the current lineup, and the EcoFlow power station guide covers River and Delta together.

Check Price on Amazon →

Real-World Output: What to Expect From an EcoFlow Panel

Every wattage on this page is a nameplate figure measured under standard test conditions: strong light, a 25°C cell temperature and a panel square to the sun. Outdoors, plan on roughly 75–80% of nameplate on a clear summer day, and less in these cases:

  • Angle. A folding panel lying flat in winter can lose more than half its potential. The kickstands on the 110W, 220W and 400W exist for a reason; re-aim a few times a day.
  • Heat. Hot cells produce less, so a panel baking at noon can trail the same panel on a cool, bright morning.
  • Bifacial gain depends on the ground. EcoFlow’s Amazon listing claims “up to 28% more energy” from the bifacial 220W. That is a best case over reflective surfaces like snow, sand or concrete. Over grass or dark soil, expect a small gain.
  • Partial shade. In a series string, a shadow across one panel cuts the output of both.
  • Cable runs. Long, thin extension cables waste power, especially at the lower voltages of a parallel setup.

A useful rule of thumb: daily solar energy ≈ nameplate × 0.75 × peak sun hours. One 220W panel in a 5-sun-hour location gives about 825Wh on a good day, close to one full charge of the 858Wh River 3 Max Plus, or most of a day’s running for a 12V fridge averaging 40W (40W ÷ 0.85 × 24h ≈ 1,130Wh of battery per day).

EcoFlow Panels vs Other Brands on an EcoFlow Station

You don’t have to buy EcoFlow panels for an EcoFlow station. Any panel works if its Voc fits the window above and you have an MC4-to-XT60 (or XT60i) cable. What EcoFlow’s own panels give you is a cable in the box and no adapter guesswork. Here is how the 220W options compare with 200W panels we already rate:

Panel Watts Weight IP Connector Score Price
EcoFlow NextGen 220W Portable Solar Panel 220W 15.9 lb IP68 EcoFlow solar connector + XT60i cable 82/100 Check price at Amazon →
EcoFlow 220W Portable Solar Panel 220W 20.9 lb IP68 EcoFlow solar connector + XT60 cable 78/100 $549.00
Renogy 200W Portable Solar Panel (N-Type) 200W 13.9 lb IP65 MC4 (plus USB-A and USB-C ports) 84/100 Check price at Amazon →
Bluetti PV200 200W Solar Panel 200W 16.1 lb IP65 MC4 79/100 $399.00
Jackery SolarSaga 200W 200W 14.3 lb IP68 DC8020 + DC7909 adapter 74/100 Check price at Amazon →

The Renogy 200W N-type scores highest of the group in our framework because it is light for its output and uses a plain MC4 lead. The Jackery SolarSaga uses Jackery’s own 8mm connector, so on an EcoFlow station it needs an adapter. For the full cross-brand field, see our best portable solar panels guide and the best 200W portable solar panel comparison.

EcoFlow Rigid and Flexible Panels

EcoFlow also sells fixed-mount panels on Amazon, aimed at roofs and vans rather than campsites. We have not scored these yet, and we only list what the Amazon listings say:

Check each panel’s Voc on its label before wiring it to a station. For flexible panels across brands, see our best flexible solar panel guide.

Who Should Buy EcoFlow Panels, and Who Should Skip Them

Buy EcoFlow panels if…

  • You own an EcoFlow station and want the cable in the box, with no adapter shopping.
  • You want a matched set: two 220W panels per Delta port is the cleanest setup in the lineup.
  • You camp on snow, sand or light ground, where the bifacial 220W’s rear face earns its keep.
  • You own a River 3 and want a 110W panel that fits its input exactly.

Skip them if…

  • You are buying on price per watt. Value-brand MC4 panels plus a cheap adapter usually cost less; see our solar panels under $200.
  • The panels will stay on a roof or in a yard. Rigid panels cost less per watt and last longer than folding ones.
  • You own a River and are eyeing the 400W. Its voltage is over or too close to the River input ceiling.
  • You own a Jackery or Anker station. Their own panels avoid the adapter, and Jackery’s listing says the Explorer 1000 v2 charges only from Jackery panels; see our Jackery solar panels guide.

Frequently Asked Questions

Which EcoFlow solar panel is best for the Delta 2?

Two 220W panels wired in series. Together they produce about 43.6V and 13A, inside the Delta 2’s 11–60V, 15A and 500W solar input, and they deliver 440W of nameplate. A single 400W panel (about 48V, 11A) is the simpler option. Three 220W panels in series would reach 65.4V, which is over the 60V limit.

Can I use the EcoFlow 400W panel with a River station?

We would not. The 400W runs at about 48V open-circuit. That is over the River 3’s 30V ceiling, and on a cold morning it can rise to about 53V, which leaves no margin under the 50V figure some spec sheets give for the River 3 Plus and River 2 Pro. A 220W panel, or two 110W panels in series, suits those stations better.

How many EcoFlow panels can I connect in series?

Divide the station’s maximum input voltage by the panel’s open-circuit voltage, and leave about 10% headroom for cold weather. On a 60V Delta port, that means two 110W, 160W or 220W panels, or one 400W. On the Delta Pro 3’s 150V high-voltage input, it means up to six 220W panels or two 400W panels. The 45W Type-C version is listed as unable to connect in series.

Do EcoFlow panels work with other brands’ power stations?

Usually, yes. EcoFlow’s panel lead is an MC4-type solar connector, so with the right adapter (MC4 to XT60, Anderson or 8mm) it will plug into most stations. Check that the panel’s open-circuit voltage fits the other station’s input window. Jackery owners will need an 8mm adapter.

Is the bifacial 220W worth it over the single-sided NextGen 220W?

Only if you often set up over reflective ground such as snow, sand, concrete or a pale tarp. The rear face adds energy from reflected light, and EcoFlow’s listing claims up to 28% more in the best case. Over grass the gain is small. The single-sided NextGen 220W is the simpler pick for most campers, and it currently scores higher in our framework.

How much power does an EcoFlow 220W panel actually produce?

Expect about 75–80% of nameplate in good summer sun, or roughly 165–175W, and less in winter, haze, heat or when the panel is not angled at the sun. Over a day with about 5 peak sun hours, that works out to about 825Wh, or roughly 70% of a 1,024Wh Delta once charging losses are counted. Two panels in series roughly double it.

EcoFlow NextGen 220W Panel ★
Check Price →

What to read next

Which EcoFlow Delta should I buy? → The Delta lineup compared side by side. What size do you need? → Add your appliances and get a capacity recommendation in a minute. Black Friday deal tracker → Today's Amazon prices on the models we track, through the Black Friday season.

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