Xbox Series X controller not charging while off with battery pack

But then if it;s the wrong battery pack, it shoudn't work with either controller ...the fact it works in one but not the other points to an issue with the second controller

The Xbox One Venom battery pack won't even fit in the Series X controller (or at least not without trimming bits off it)..as the OP can fit the pack with no issue, it suggests it's the right battery pack. Unless Venom have released more than one battery pack for the Series X?

Well that's a series x

Batteries packs would fit the series x controllers as long as it's not one.of those contact charging backs

As you charge thru your port

Not the back you would have to buy a pack with q charging back.as the pics wouldn't fit

Xbox One accessories and peripherals will be compatible with Xbox Series X. As to whether the rechargeable battery packs are compatible with an Xbox Series X controller, that has not yet been revealed at this time, to my knowledge. However, the new controller
will use USB-C for its charging port instead of the Play & Charge Kit's Micro-USB plug.

Hi,

1. It will work wired and wireless. You can only charge the battery while being wired if you have a battery pack installed. Regular AA re-chargeable batteries can not be charged during play. The official Xbox One X/S battery pack will be released November
   10, same as the console. As far as I know the controller does not come with a USB C cable, unless you are also purchasing an Xbox Series X/S console (cable is in the box). Yes, your PC will be able to charge/power an Xbox Series X controller.
2. Yes, once they run out you'll need to charge the battery. If you need to do this externally (AA batteries), you can connect the controller via USB and power the controller via the cable with no batteries installed. An official Microsoft fully charged battery
   is rated for around 30 hours. Re-chargeable AA batteries will vary.
3. Yes. You can use a Bluetooth USB dongle if your PC does not have BT built into the motherboard.
4. No. Windows 10 will already contain the necessary software to run your controller. There is an Xbox optional Wireless Adapter for Windows 10 available that uses its own wireless protocol and will allow some extra functionality such as headsets, chatpads,
   and the Xbox Stereo Adapter.

Well here's what I'm doing. I don't suspect I'll need a 2nd controller for a while, so I simply reserved, payed off the Play and Charge kit by itself, which does come with the battery pack. Again, as others have stated too,
there's the controller bundle, which you get the play and Charge Kit, battery pack, and of course the controller. Rather than the console itself doesn't come with the Play and Charge Kit or the battery pack rather than AA alkaline batteries. (If you recall
this is how it was with XBox 360 Play and Charge kit as well; a battery pack came standard with the charge cable because there'd be no use for the cable othe.rwise as it simply doesn't charge alkaline batteries.)