Batteries for Aurora Series Laser

Well only a few days after I got my blue laser, I have already gone through one of the ultra CR2 batteries it takes. : Unfortunatly they cost $15 each here, so if I ever want to get another I will need rechargables. I see that dealextreme has a rechargable CR2 but does anyone know if it safe to use with my laser? Anyone else have this laser, what do you use?

I would contact Dragon to find out if it can handle the rechargeables or not.....

You can get cr2's at $1 each - I buy my batteries here
http://www.amondotech.com/index.asp?PageAction=VIEWCATS&Category=312