I find it regularly when buying car batteries (the regular 12V ones), and in fact I bought one for a friend just a couple weeks ago. They're kinda popular at l

I find it regularly when buying car batteries (the regular 12V ones), and in fact I bought one for a friend just a couple weeks ago. They're kinda popular at least around Europe. edit: I just remembered when I worked on TV production some years ago, and they bought big boxes of the "Industrial" variety of AA cells for the wireless mics and in ears.