The EcoFlow 400W Portable Solar Panel is one of the most powerful foldable panels on the market, designed to deliver fast, reliable solar charging in a lightweight and travel-ready format. Built to work seamlessly with the EcoFlow DELTA Pro, DELTA Pro Ultra, and other high-capacity power stations, this panel is ideal for RV life, camping, emergency preparedness, and full off-grid energy independence.
Featuring premium monocrystalline solar cells with high conversion efficiency, the EcoFlow 400W Portable Panel is engineered to provide maximum solar input in a minimal footprint. When you need serious power in a compact, portable form - this panel delivers.
Rated Power: 400W
Cell Type: Monocrystalline with anti-reflective coating
Conversion Efficiency: Up to 23%
Voltage (Vmp): ~48V
Current (Imp): ~8.3A
Connector Type: MC4 - compatible with most solar generators and battery systems
Folded Dimensions: ~41.7 x 24.4 x 1.7 in
Unfolded Dimensions: ~41.7 x 93.1 x 1.0 in
Weight: ~35 lbs
Water & Dust Resistance: IP68 rated
Integrated Carry Case and Adjustable Kickstand
This panel is designed for serious solar users who need reliable energy input for large battery systems in remote, off-grid, or mobile environments.
Thanks to its high power output and fast deployment, the EcoFlow 400W panel can charge massive battery systems like the DELTA Pro Ultra with up to 3,600W of solar input when used in parallel. Whether you're powering an entire RV, running off-grid tools, or building a mobile workstation, this panel is capable of keeping up with high-demand energy needs.
It folds down compactly and features a rugged ETFE surface for durability in harsh outdoor environments. With the integrated kickstand, you can angle the panel toward the sun for maximum efficiency.
RV and Van Life: Keep your batteries charged while living or traveling off-grid.
Off-Grid Cabins or Tiny Homes: Build an independent solar system without permanent mounting.
Camping & Overlanding: Run fridges, fans, lights, and devices using solar alone.
Backup Power Systems: Recharge your power station quickly during outages.
Mobile Workstations: Keep tools, laptops, and communications gear powered remotely.
The 400W Portable Solar Panel pairs perfectly with:
EcoFlow DELTA Pro / DELTA Pro Ultra
EcoFlow DELTA 2 Max / DELTA Max
EcoFlow Power Kits and Smart Batteries
Any other high-capacity system that supports MC4 input up to ~48V
High Output in a Foldable Design - No need to sacrifice performance for portability
Weatherproof and Travel-Ready - IP68-rated and built for the outdoors
Works with Most Solar Generators - MC4 connectors and broad compatibility
Built by EcoFlow - A global leader in portable energy innovation
Backed by Warranty & U.S. Support
If you need a rugged, high-output panel that you can take anywhere, the EcoFlow 400W Portable Solar Panel is your ultimate choice. It’s the perfect solution for powering your adventures, prepping for emergencies, or creating a truly mobile solar power system. Experience freedom from the grid without giving up power.
