Review on 🌞 SunJack 15W Portable ETFE Monocrystalline Solar Charger for Cell Phones, Tablets - Waterproof, Foldable for Backpacking, Camping, Hiking & More by Quvarious Morrow

This is a very practical item. We mount it on the windshield while driving or attach it to our backpack when we are out at night and always have extra energy. Charges quickly in the windshield. Load times while hiking are longer due to the angle at which the panel is hanging, but if we're out all day it'll still get the job done. If not, we just put the charger in the sun as soon as we stop. You can buy the whole set with two battery packs or just the charger and battery pack separately. When we bought it, it was actually cheaper if you bought the components separately, so check before you buy. This was my second purchase of this item. The first worked great but was left in a rented truck and "disappeared". I bought it for the second time without hesitation. Highly recommended.