A:AnswerIt's a micro USB. But I had the same rocketfish battery pack and returned mine for Energizer rechargeable batteries because the battery wouldn't charge with the rocketfish charger pack of you have the same issue just return it and do the same
A:AnswerNo, I am doing the same thing. It's just a different USB cable.
The Old Xbox one controllers use MicroUSB, the Series controllers use USB-C...
Great value as the Microsoft ones are like $30
A:AnswerYou plug your controller in to charge. You don't change the battery itself.
If you have a Series S/X, then the cable won't work but, the batteries will
A:AnswerI had the rocket fish charging pack and cable had the same issue with not charging I returned mine and got the Energizer rechargeable batteries probably a good idea for you to do the same