Jackery SolarSaga 40W Mini Solar Panel sells on Amazon. I think the price is very good. Please read some of the reviews and see people thought of the product.**If you’re not sure whether to buy, add to cart, and you can come back to it later!**

Lightweight and Portable: Weighing just 2.6 Lbs, Jackerys 40 W Portable Solar Panel is lighter than a MacBook, ensuring you stay fully charged, with total flexibility and convenience. Measuring just 9.9 * 11.8 * 1.2 inches, this compact and foldable solar charger is tailored for maximum travel convenience, featuring 2 carabiners, allowing for easy and flexible attachment to your backpack. Plus, its clever 4 fold design fully maximizes space, further enhancing freedom of use.

Efficient Solar Charging: Boasting industry leading 23% solar conversion efficiency, the SolarSaga 40 W Portable Solar Panel harnesses solar energy, like never before. With direct solar charging, effectively charge devices anytime and anywhere – in the presence of sunlight. It can fully charge an iPhone 13 in an impressive 2.5 hours, charging the Solar Generator E100 Plus, to 80% capacity within just 4 hours.