I
got a gift from my little brother, a little knockoff leatherman with a
LED flashlight. Here’s the consumer safety information printed on a
sheet inside the box: Four “SR621” Button Cel in the battery
compartment. Battery contains mercury. Do not put in trash. Recycle or
manage as hazardous waste. Do not mix old and new batteries. Do not mix
alkaline, standard (Carbon Zinc), Or Rechargeable(Nickle cadmium)
batteries. Do not dispose of batteries in fire. Batteries may explode or
leak.