The battery should not be opened or burned. Exposure to the ingredients contained within or their combustion products could be harmful. In case of fire, it is permissible to use any class of extinguishing medium on these batteries or their packing material. Cool exterior of batteries if exposed to fire to prevent rupture. Fire fighters should wear self-contained breathing apparatus.
Battery contains mercury which produces highly toxic mercury vapors under fire conditions.
Under normal conditions of use, the battery is hermetically sealed. Swallowing a battery can be harmful. Contents of an open battery can cause serious chemical burns of mouth, esophagus, and gastrointestinal tract. Contents include mercury which can cause abdominal pain, vomiting, diarrhea, liver and kidney damage, and central nervous system disorders. If battery or open battery is ingested, do not induce vomiting or give food or drink.