Help with battery problem

[Thor]

Hi all, I'm just getting into this laser addiction!!! Anyway I need some help, probably dumb help.... I have this cheap red laser pillaged from a laser level and I want to put it on a friends air pistol. I have made a new tube for everything to slide into, the original tube has room for 2 AAA batteries. The new tube I made, I made for only one AAA battery so it doesn't look stupid on the gun. Well the laser will not fire up on one battery. Is this determined by the little driver board on the back of the laser? Or am I missing something?

Here is a pic of the old tube and laser before I made the new tube and made a smaller heat sink for it...

Thanks for any help or guidance....

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[Meatball]

It sounds like you'll need that extra AAA to get the full 3V that the driver circuit wants. You only have 1.5 volts to it. Not many drivers can do much with that.

 

[Thor]

Thanks for your reply! So would I be better of modifying a dollar store cheapo, one that comes with a single battery? All im looking for is the shorter "tube".

 

[rpaloalto]

You could try one of these 3.6v rechargeable cells.
DealExtreme: $4.23 Ultra Fire 10440 3.6V 500mAh 2Pack same size of AAA

 

[Thor]

More than one way to skin a cat..... Thanks! Im sure I will be posting more when I get my parts in...... I want a green and blu laser, so I ordered some parts to build them... Lots of info here, kept me busy for a while now reading.