Group of button batteries

Button Battery

Hearing aid, watch, calculator

Button batteries are a small single cell battery shaped as a squat cylinder typically 5 to 12mm in diameter and 1 to 6mm high.  They are generally used to power small portable electronic devices such as wrist watches, calculators and hearing aids. 

See Also Batteries



There are some alternatives for small portable electronic devices that use button batteries. 

  • You can get solar-powered calculators and wind-up watches. 
  • Before you purchase a product, do some research and see if there are alternatives.


Hearing Aid batteries - check with your supplier or chemist to see if they take back your discharged hearing aid battery for recycling.


The landfill does not accept lithium-ion batteries due to their hazardous nature and potential risk of fire.

Please do not dispose of these in the general waste.