Adapter to charge 2015 MacBook Pro with power bank
Hi. The original charger cable I received has a MacBook MagSafe compatible end at one end and a round male plug at the other end. It is not like an audio jack as it has a small hole at the end. I want to charge the MacBook with a power bank but it does not have suitable round socket, only USB. Any adapter or cable I can use? Please excuse the simplistic language and hope it makes sense!
MacBook Pro 15″, macOS 10.15