HSE Ireland - Button batteries are small, round batteries that come in many different sizes and types. Keep all spare and used batteries out of children's sight and reach at all times
Vintage Hearing Aid Batteries | Hearing Health & Technology Matters
Lithium Batteries & Coin Cells | All About Batteries | Adafruit Learning System
Br1632a High Temperature Button Cell 3v Lithium Battery Br1632a - Buy Br1632a Coin Type 3v Lithium Button Battery,Br1632a Button Cell,Br1632a High Temperature Button Cell Product on Alibaba.com