Use the clean, free, and renewable power of the sun to charge your Goal Zero portable power pack with the Boulder 50 Solar Panel. This 21.75 x 26.75 x 1.75" panel produces up to 50 watts of power that can be stored in any Goal Zero recharger; it is most effective with the Yeti 150, Yeti 400, Yeti 1250, Yeti 1400, Sherpa 50, and Sherpa 100 models.

You can chain up to four Boulder 50s together for increased power production. The Boulder 50 can also be chained with other models in the Boulder line. The panel is covered with scratch-resistant tempered glass and is supported by an aluminum frame with extra corner protection, and features an integrated kickstand that supports it at the optimum angle for charging. The weather-resistant Boulder 50 is rugged enough to be permanently installed, but its size and 12.4-pound weight also make it portable.

• 50-Watt (14-22V) panel features an integrated kickstand providing optimal angle placement.
  

• Built with strong tempered glass and an aluminum frame with added corner protection.

Solar charge times vary and are dependent on many factors such as elevation, temperature, time of year, angle and position to the sun.

• Yeti 150: Charges in 5-10 Hours
  

• Yeti 200X: Charges in 5-10 Hours
  

• Yeti 400: Charges in 12-24 Hours
  

• Yeti 500X: Charges in 12-24 Hours
  

• Yeti 1000X: Charges in 23-46 Hours

• The solar panel does not hold a charge - it only produces power when it is exposed to sunlight and connected to a power station or bank.
  

• Optimize solar panel efficiency by positioning them south-facing at a 45-degree angle.
  

• For faster recharging, use multiple solar panels.