Button batteries are small, round, silver-coloured batteries that come in many different sizes and types. They power many of our devices at home to make our lives more convenient. Most button batteries pass through the body without a problem. But if a lithium coin cell battery gets stuck in the food pipe, energy from the battery reacts with saliva to create caustic soda. This is the same chemical used to unblock drains! This can burn through the food pipe, to the main artery and lead to catastro