Recycling batteries

Billions of batteries of all types are purchased every year to power portable electric or electronic devices. These batteries contain materials such as mercury, lead, cadmium, nickel, silver, cobalt, lithium, or graphite that can be reused if reclaimed through recycling.  In addition, some of these materials are harmful to the environment if improperly disposed.  In general, each type of battery has its own recycling or disposal requirements depending on the materials used in the battery.  Be sure to check out safety precautions for storing batteries because some of them can catch on fire if improperly stored.  
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The link below provides great information on all types of batteries and how to recycle them.  It’s focused on the US, but many other countries will have similar laws and recycling programs.  Start by checking with your local community government concerning recycling and hazardous waste rules and drop-off locations. 

https://earth911.com/home-garden/home-battery-recycling-guide