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Deal.ai › EcoFlow
EcoFlow
EcoFlow 400W Portable Solar Panel

EcoFlow 400W Portable Solar Panel

Best price now

$569.00at eBayObserved at 6:46 AM

50% under what the other stores charge

Compared across 6 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission.

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Our take on the EcoFlow 400W Portable Solar Panel

The EcoFlow 400W Portable Solar Panel is a folding monocrystalline panel for charging portable power stations and solar generators. It rates 400W with 22.4% cell efficiency and folds into a kickstand case for camping, van and backup use. It is heavy at about 35 lb for the panel and 42 lb with the case. The best new price was $251.59 at eBay as of November 8, 2026, with 6 stores listing it new.

Best forCampers and van lifers charging a power stationHome backup and emergency power setupsOff-grid users who want high wattage in one folding panel
Pros
  • 400W output charges large power stations quickly in good sun
  • 22.4% monocrystalline efficiency is high for a folding panel
  • Folds with a built-in kickstand case for angled setup
  • 48V open circuit and 11A short circuit current suit many EcoFlow and third-party solar inputs
Cons
  • Heavy: about 35 lb for the panel, 42 lb with the case
  • Large footprint at roughly 42 by 94 inches unfolded
  • Output drops sharply in shade, clouds or low sun
  • Needs a compatible solar input or charge controller; not a plug-and-play wall charger

EcoFlow 400W Portable Solar Panel prices at every store

  • eBayNew

    In stockSold by electrojungle

    $569.00Free shippingObserved at 6:46 AM
    Visit eBay
  • TargetNew

    In stock

    $999.99Free shippingObserved at 6:46 AM
    Visit Target
  • Generation Eco StoreNew

    In stock

    $1,129.99Observed at 6:46 AM
    Visit Generation Eco Store
  • AdoramaNew

    In stock

    $1,199.00Free shippingObserved at 6:46 AM
    Visit Adorama
  • Best BuyNew

    Out of stock

    $649.99Free shippingObserved at 6:47 AM
    Visit Best Buy
  • HomeryNew

    Out of stock

    $999.00Free shippingObserved at 6:47 AM
    Visit Homery

Also available at

  • eBayCheck price at eBay

Store links may earn us a commission. Some prices via Klarna.

EcoFlow 400W Portable Solar Panel price history

Lowest price we've seen: $569.00 on Nov 8 at eBay. Tracked across 6 stores since Nov 8.

Specifications

Rated Power
400W
Cell Type
Monocrystalline silicon
Efficiency
22.40%
Dimensions
42.094.11.0 in (106.8239.02.4cm)
Connector Type
Solar Connector
Open Circuit Voltage
48V (Vmp 41V)
Short Circuit Current
11A (Imp 9.8A)
Weight(Solar Panel)
Approx. 35.3lbs (16.0Kg)
Weight (With Kickstand Case)
Approx. 41.9 (19kg)

Questions and answers

Is the EcoFlow 400W panel worth it over a smaller panel?
If you charge a large power station, the higher wattage cuts charge time a lot. For a small station or occasional use, a lighter 100W to 220W panel is easier to carry and often enough.
How long does it take to charge an EcoFlow power station?
Charge time depends on the station's solar input limit and the sun. A station that accepts the full 400W can gain roughly 400Wh per good sun hour; one capped at 200W or 300W will charge slower no matter the panel.
Does it work with non-EcoFlow power stations?
It uses a standard solar connector (MC4-style) with 48V open circuit and 11A short circuit current. Check that your station or charge controller accepts that voltage and current before connecting.
What is in the box?
The panel comes with its folding kickstand case and a solar charging cable. A power station and any adapter needed for other brands are sold separately.
How much does it weigh and how big is it folded?
The panel is about 35 lb and about 42 lb with the kickstand case. It folds to roughly 42 by 24 inches, so it fits in a large trunk but is a two-hand carry.
When is it cheapest?
Solar panels tend to drop during spring and summer sales and around major shopping events. The best new price was $251.59 at eBay as of November 8, 2026; watch for bundles with power stations, which can lower the effective panel cost.
Where is the EcoFlow 400W Portable Solar Panel cheapest?
At eBay, for $569.00, 50% under what the other stores charge, as of our latest check.
Where can I buy the EcoFlow 400W Portable Solar Panel?
6 stores we checked sell it, including Best Buy, Homery, Generation Eco Store, eBay, Target.

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Stores we've priced the EcoFlow 400W Portable Solar Panel at

  • Adorama deals and prices
  • Best Buy deals and prices
  • Homery deals and prices
  • Target deals and prices

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