A power bank is a must-have accessory. The smartphone has become an indispensable part of our lives. You can pay with it, stay reachable, stay informed of the latest developments, log in and much more. In other words: you can hardly do without it and it must always be charged. Sometimes you use your phone so much that the battery does not last a whole day. And you do not always have the option to charge your phone in between via the socket. A power bank is the ideal solution. But which power bank should you choose? There are many different power banks with different shapes, functions and connections, which can make it complicated to find the best power bank for you. We have compiled a list of the best power banks in 2025 for you.