Got it in August.
Put a new battery in, zeroed the visible laser and left it alone. The unit is on a suppressed BCM SBR which sits by the bed at all times so I never took out the battery. Nov 2nd my NODs came in. Went to play and nothing. Battery dead.
I knew about taking the battery out of the NODs but never saw that about the laser.
Sitting on my home defense rifle I thought why not have a laser as well which is why I left the battery in. I know I don’t need it so if I have to store it without the battery it isn’t the end of the world. Just didn’t know bout having to do so.