With a power bank with MagSafe or Qi2, you can charge your phone wirelessly and without a separate cable. The power bank has a ring with magnets that automatically snaps onto the back of your phone. This way, you can continue using your phone while it charges. Have an iPhone 12 or newer? The magnetic power bank attaches right onto it. Do you have a Samsung or other Android phone? You usually need a magnetic case, since only the latest top models have built-in magnets. With one of these cases, the power bank attaches easily.