OK, it's as I thought as per my edit (which I assume you hadn't read before posting).
Yes, you can post it if it is sent with an electronic item, but most people would not consider that "packaging" but "contents". I see your point, but the vast majority of people reading it would completely misconstrue what you are saying. To put it another way: you were also making a statement about a narrow subset of situations without clarifying that.
to put it yet another way your quote "I said you could send batteries if
PACKAGED CORRECTLY" is implying that the correct packaging is the only impediment to posting batteries, whereas we both know that not to be the case.
Joke: Usually one decides what to send, then how to send it, not "ooh, I need to post a battery, better pop out and buy a camera to package it in"
So yes, if it the battery is being posted with an electronic item AND you meet the other requirement, you can post it. Your comment sonly referred to packaging and informing staff, but omitted the most important factor - you need to be posting something else with it!
The fact that you've continued in this vein when you could easily have clarified your point suggests you've been playing some kind of legalese/word game for your own amusement. I hope you enjoyed yourself, but I find your accusations of trolling rather laughable under the circumstances.