This is a twin pack of battery packs to fit your xbox controller.
That means each one fits into one controller and replaces the 2x AA you would usually put there. This is a pack of two so you can be charging one of them and playing with the other in your controller.
(I would play for a few hours each evening so would have pack 1 charging overnight, play games with pack 2, then swap them out at bedtime.)

Stop buying endless AA batteries! Or, stop having the controller plugged in with a wire, restricting movement cos you can't afford to buy endless batteries! I found this solution to the problem a year or so ago and it truly is amazing! The battery pack fits into the AA compartment in the controller so is compatible with all xbox controllers as far as I know. check this link, it says it there:
https://www.amazon.co.za/AmpTorrent-Controller-Rechargeable-Lightweight-Experience/dp/B09Y1XXMDK
Oh one more thing,why am i giving it away, or does it still work if it's used.
Well Yes it still works but I noticed it takes a little longer to charge and it drains a little quicker than when it was new. Now I mean a little. If it wasn't any use to someone then I promise I would NOT give it away! If I myself wouldn't find it useful if I didn't have one,then I wouldn't just put it on here to get rid of it as some people actually do! So it is definitely working and useful if you use controllers!!
- - - - -
Please just leave a note saying anything you like. I'm just going to pick someone. Make me pick you 😄
if theres no interesting or funny or amazingly skilled begging messages then I'll just pick one at random ok!
And....
IF YOU GET PICKED YOU MUST COLLECT.
Please, please don't mess me about and not turn up.
If you do that I'll disembowel you and put you on a spike outside my door with a sign around your neck stating:
' I Didn't Collect My Goods on Freegle'.

Free Advice From a Sage section...
[I urge everyone who uses an xbox and needs batteries for the controller- Even if you don't manage to get this one, stop buying cheap AA batteries cos they cost you a fortune in the long run! I added it up and buying cheap AA was costing me way more than the cost of a pack of these and these last about 3 years and that's from nearly daily use (according to my friend who has been buying them for a long time!) Just get yourself to amazon and get the most popular highly rated one. The brands are always changing so I find it's best to go for popularity! It's best to try get the 4800 ones but tbh, all of them do the job. The numbers don't really change the performance when gaming! i promise you, within a couple of months you'll have covered the cost in old cheap batteries already and you'll be living the high life of charging one pack and playing with the other!]

2 x Battery packs for Xbox Controllers (Compatible with ALL) (Alfriston BN26)