»Computerbild TEST WINNER. Here comes a real beast: The largest, heaviest and most expensive model in this test delivers 79.7 watt hours of energy via three outputs, including a 20-watt USB-C port. Full charging takes just under seven hours; 1 watt hour charges it twice as quickly as the competition. Comparatively strongest solar charging capability. High quality.«

»One of the standout aspects of this powerbank is its ability to charge both via solar panels and via a traditional USB cable. This makes it ideal for outdoor, travel or emergency use where access to conventional power sources may be limited.«

»The Sandberg Solar 4-Panel Powerbank 25000 seamlessly blends the realms of sustainable energy, technological innovation, and outdoor durability. It’s clear that the powerbank is designed with a particular audience in mind: those who appreciate the merge of technology with nature. Its array of features and benefits make it a valuable asset for outdoor enthusiasts, tech-lovers, and sustainability advocates alike.«

outdoor.se:

»Best solar panel with a power bank. A powerful extra battery with solar cells. The power bank is charged just as easily via a wall socket as with the large foldable solar panel which is divided into four solar panels. If you are out on a hiking trip, you can easily hang the power bank up with the supplied carabiner.«