Surefire batteries are on clearance/mark down at different Lowe's. If you use Brickseek you can check you local stores. A few stores seem to be able to ship them to your house and I was able to get store pick-up. I ordered 10 2 packs, but they only found 7 packs. Only $2.08 a pack, but that depends on your location. Here are the product numbers to check on Brickseek: 1000184255 / 1054377 / 3203865