None of the battery packs have their sizes listed. So now I'm stuck with something that is way too big for my controller and unusable. Two months waiting for it to arrive to the UK, all for nought. Also, seller never provided a tracking number after multiple entreaties. So a bit not good. Can't really say if it is working, because it's too big and cannot connect properly.
would not know as seller never posted batteries. Also tried to trick saying they sent replacement but I checked tracking number and it was the same number that was never despatched.