Crimson trace laser site - Crimson Trace Front Activation Green Lasergrip for 1911 Government/Commander

The green laser is only visible for just a few seconds when activated. I do not know if the batteries that came with the sites are low but the laser has only been activated for less than 3 to 4 minutes total. I know that green lasers require more energy to light but the batteries should last 2 hours. The sites will be of no use to me if I can not get them to work correctly. In fact they are just plain dangerous.