Wiring 3 Laser pointers together. Should I increase the Voltage?
I'm working on a Predator (as in the movie) style Laser sight for one of my Nerf guns using three laser pointers (or rather the lasers inside of them). I want to use AA or AAA for the power source because button batteries are expensive and don't last. The laser pointers each use 3 batteries at 1.5v a piece for a total of 4.5v. Since AA and AAAs have the same voltage that isn't a problem. The problem is that I want all three lights to come on at the same time with a press of a button, and the only way I know to do that would be to wire them to one power source. I'm also a bit limited on space, so one power source would be ideal.
So my question is this: Do I need to increase the voltage in order to power all three lasers or will 4.5v be enough to power them without dimming?
I have little experience in this field, so any help/suggestions would be appreciated.