My new 200 mw red laser "pointer" from 0-like

well, this is my first post on this forums.
i got into laser about 1 year ago when i bought a 5mw green laser pointer from woot.com (it was 11$) and its still alive.
since then ive been reaserching lasers and trying to understand how they work i built my own blueray laser.
and now i just got my 200mw red laser "pointer" from 0-like its so amazing i got it in 6 days and i live in california and its working perfectly.

my question is:if im using 3 volt CR2 batteries how long is this new style 200 mw red laser going to last if i use it twice a week for about 15 min?

If its anything like the dilda, it will survive for a very long time. I have 2 of them, one in use regularly, and it hasnt died on me yet - think i must have owned and used it for well over a year by now... and i run it of 3.6 volt cells.