Pen Green

Pen Green
If AAA batteries be removed from green laser?

Is it okay to keep the batteries in a light green as the laser pen for a few days or is there a capacitor current agreement or something filling? I know that batteries should never be kept in anything not used for weeks or months, but what about a few days or several days?

No, the laser draws no current when off. Nothing will keep the system inside. There is only one active element with two cables such laser – the laser diode element itself. Put volts through it and it lases. And out of the media.