About 90% of batteries used in emergency and exit lighting are nickel cadmium (Ni-Cd). Ni-Cd batteries are a priority for recycling because they are among the most hazardous of all batteries.
It’s estimated that 5 million Ni-Cd batteries are sent to landfill each year which equates to about 90 tonnes of cadmium. Cadmium is a toxic heavy metal that needs to be carefully managed to minimise its potential impact on humans and the natural environment. Recycling ensures that cadmium is safely recovered rather than disposed to landfill.