Biological hazard due to technical growth is on a hike. From needle to airplane, everything can be dangerous to human kind now days. Poisoning due to battery has been increased in last 25 years. Especially the usage of lithium ion battery is the main factor in case of contamination and it has become harmful to the small children.

The number of kid's death or experiencing severe damage every year remains low, but such harmful issues like button-battery poisonings in increasing rapidly, says researchers.

The study has highlighted the significance of keeping the small, button shaped batteries out of kid's hands.

The researchers of the National Capital Poison Center in Washington have also said the same fact. During the year 1985 to 1987, just 0.06 % of battery intake issues was lethal or had large complexity. These poisoning generally harm to the esophagus layer that required surgery and lead to extended troubles with inhalation and ingestion.

Button batteries are used in a large range of products, like dig cams, remotes, watches, hearing aids, and also musical cards and children less then 4 years are common prey of these.