A:AnswerYou can use the Rechargeable Battery Pack For Xbox Series X | S and Xbox One
Model: RF-XB1SRBP it is compatible with the Rocketfish Xbox One charging solutions.
A:AnswerIt works with my original Xbox 0ne controller. I think you can plug it into any USB port it will fit in. if you can plug it into the box I would do so. also I'm pretty sure it has a USB thing on it so you don't have to use up your one USB port
A:AnswerJust keep it flipping until you find the right fit.
No cutting required but i know what you mean because it took us a minute to find it too. We have a Xbox S too.