This site contains affiliate links for which we may be compensated.
Bigblue 14-Watt Portable Solar Battery Charger$36.64
The BigBlue 14-Watt Sunpower Solar Panels are an excellent choice for portable solar charging. These panels are extremely small, folding down to about 5.8 in. x 6.02 in.
x 2.12 in. and weighing only 0.8 lbs. You can easily fit them in your backpack without adding much weight.
The USB port (5-Volt/2.4 Amp Max) with an attached USB-C cable.