Battery and switch question?

[Livnoutdoorsxd9]

Hey I was just wondering what size battery can be used in a flashlight that formerly ran off one AAA? also, I just stopped at radio shack and picked up some 5.0mm high tact switches (pn 275-0002) it has 4 pins for connections and I was wondering which two to use for a mod? Thanks

 

[Java_Az]

10440 is triple AAA size your going to need high drain ones and even those are on the weak side for firing atomizers. Your going to want to use all 4 posts on that tactile switch use a volt meter to find the common legs. Those are rated @ 50ma so i wouldn't expect them to last long without using a mosfet. To give you an idea a 3.7 battery firing a regular OHM atomizer ( 2.2ohm joye) is going to draw 1600ma.