Fire Extinguisher - Recharge or Recycle ?

I see Lidl are selling 6KG powder fire extinguishers tomorrow for €28.
Seems like a wise purchase.

But I have an old one (unused) but it is now beyond its 'valid to' date.
What can I do with it ?
Would Fire Stations take them for training etc? Or is it just a case of dumping it at the local cecycling centre ?

This was discussed before on AAM
[URL="http://www.askaboutmoney.com/forumdisplay.php?f=20"]Consumer Issues and Rights > LIDL fire extinguishers, serviceable or not?[/URL]

Please edit the title of your thread to make it more meaningful.
Leo