So I have purchased my first lights that are not olights. And they are quite a bit more expensive so I want to ensure that I load them with the proper cells. I know what size battery they take but what I am unsure of is the specifications around being protected vs unprotected, the amperage, the mAh, whether they need to be high drain or not etc... The lights I am speaking of are tains. one is an 18350, AA, and cr123.