Wanted: Empty T2x battery cases!

[T7TrainingSystems]

I have three T23's and a T22 which I take with me around the place for training students.

When I fly, I take out the batteries as there's no point in taking all that extra weight with me.

Problem is, it leaves a big gaping hole in the bottom of the computer which looks weird and makes the laptop feel a bit unsupported physically.

What I'd like is an empty battery case that I can put in there - just the casing with no battery cells in it.

And since there's space in there, I reckon I could fit a rather-flat mouse into the empty battery case - the perfect travel solution!!

SO...

Does anybody have any T2x batteries that are completely kaput/cactus/finito/dead-as-a-doornail that they'd be willing to send to me for a reasonable cost? I need four of them, and I could use a few more for future expansion.

Or, does anyone have any ideas where I could get some? I'm Sydney, Australia.

Cheers!

Moderator edit: Moved from T6x conference