https://www.amazon.com/dp/B0BGFC77M6 https://www.amazon.com/dp/B0BGFC77M6 5v, 9v, 12v, 15v, 20v - selectable with all kinds of adapters. I had a motorized mas

https://www.amazon.com/dp/B0BGFC77M6 https://www.amazon.com/dp/B0BGFC77M6 5v, 9v, 12v, 15v, 20v - selectable with all kinds of adapters. I had a motorized massage gun that had a 9v barrel connector, this thing worked perfectly. I can also use it to charge a 12v usb-c tablet I have that won't work with normal usb-c PD.