Bestbuy offers Anker - SOLIX PS400 Portable Solar Panel 400W - Black for $629 (orig. $899) with free shipping.

Product Description:
Anker SOLIX PS400 Solar Panel(400W) is designed to harness the power of the sun with unparalleled efficiency. Experience the perfect blend of sustainability and performance, as our solar solution revolutionizes your energy consumption, reducing costs and your carbon footprint with every ray of sunshine. It's the perfect match for Anker SOLIX portable power stations to get your solar generator solution. Protect Our Earth, Power Your World.

• 1.5X Higher Conversion Efficiency
  The solar panel converts up to 23% of sunlight into solar energy, charging your solar generators even on cloudy days.
• IP67 Waterproof Protection
  The solar panel's IP67 waterproof protection allows it to withstand even the harshest weather and your adventurous lifestyle.
• Switch Between 4 Optimized Angles
  No matter where you are, the season, or time of day, you can maximize sunlight absorption. Easily switch between 30°, 40°, 50, or 80° angles.
• Long-Lasting and Durable, Outdoor Design
  The solar panel is scratch and weather-resistant to last as long as your adventures do.
• Portable and Foldable
  Designed to be brought on adventures, the foldable solar panel is compact, so you can have continuous power to charge your devices quickly on the go.
• Made for Anker SOLIX PPS
  Anker SOLIX Solar Panels is compatible with Anker SOLIX Portable Power Stations(sold separately), making it an ideal all-in-one power solution for road trips, camping trips, RVs, and more.