My recent post about this was locked for some reason, probably for excessive TSA bashing.

Anyway, just an update. I had no problem carrying 123A lights on four flights recently, BUT I just received an order from Surefire containing a dozen 123As (and a nifty new E2E) and the shipping box was very prominently labeled with large red stickers:

[color:"red"] "Primary Lithium Batteries - Forbidden for transport aboard passenger aircraft."[/color]

I'm aware the 123As have been known to explode on occasion, but I didn't find anything on the TSA website about this. Does anyone know what the story is? I'm really just curious to know what the limits are.