Ok, so as of recently I have really gotten into flashlights. Particularly small, bright, led's. I ordered myself a fenix lop-se and have really enjoyed it the last few days. So I decided to order a p1d-ce but I have a question. What kin of cr123a battery should I buy? Whats the best/brightest/longest lasting. I know this is a noob question but I am curious as I want to get some before my new toy arrives. Thanks in advance.