The Sunnybag SUNBOOSTER is a highly efficient portable solar system with a total output of 21 watts. It is perfect for those who love independence and want to be supplied with power around the world. Whether hiking, climbing, touring, cycling, golfing, Camping or at festivalsthis solar charger is a reliable companion that will supply devices with energy.Like any solar panel, the Sunnybag SUNBOOSTER works best when it is aligned at a 90° angle to the sun. Depending on the model, smartphones can be charged in 2-3 hours when the sun is shining. Larger devices such as drones or tablets take 6-8 hours. The charging time increases accordingly if the cloud is cloudy or if the sun is not aligned optimally. The SUNBOOSTER can of course also be used to charge power banks and to store the solar energy for later.Even cold and wet can have no effects on the robust scratch-resistant surface. The solar charger can also be used in winter and in wet conditions. With the help of the eyelets at the co