Like the title says I just ordered myself a new laser. A much more powerful laser then my previous laser ( Cute 250mw red laser) My only real question about this Rifle laser is the batteries.. I clicked the option to include the batteries and charger but I heard they are not the best option? I honestly dont know much about batteries I always get confused. This particular laser needs 2 16340 batteries correct? How are they different from my CR123a batteries I use in my other laser? And my last question is what batteries do you guys recommend me using in my Rifle laser when I get it. Should I stick with the ones that come with it or should I get some different ones. Links too if possible.. Thanks!