Bestbuy offers Anker - SOLIX C300X DC Solar Generator 288Wh (90,000mAh)/300W 2-in-1 Power Pack for Outdoor Camping (288 Wh Capacity) - Black for $236.99 (orig. $329.99) free shipping. 

Product Description:
The Anker SOLIX C300X DC 2-in-1 Solar Generator Kit combine with a 90,000mAh (288Wh) portable power station and one 60W book-size solar panel, makes it extrmely portable and user-friendly, super convenient power pack for your outdoor trips. The C300X DC Power Bank Station delivers 300W and includes two 140W two-way USB-C fast charging ports. Powering all your tech on the go with versatility, no matter the connection type. Attach the strap and handle with a 30% smaller power station for complete portability. Give your journey endless charging with 60W book-size solar panel. Mighty but portable power for your outdoor activities like camping/ road trip/ photograh, and indoor backup like home office/ emergency power for laptop/phone/CPAP.