Are Li-ion batteries harmful to health?

As long as a battery pack is not damaged, there is no danger to health. If the pack is destroyed and electrolyte leaks out, avoid contact with the skin and particularly the eyes. Should it come into contact with the eyes, rinse thoroughly with clean water and contact an ophthalmologist immediately. There is a danger of loss of vision. In the event of contact with the skin, thoroughly rinse the affected area with water. Skin irritation may occur.