Single CR2032 / 20mm Coin Cell Battery Holder with Switch : ID 4856 : $0.95 : Adafruit Industries, Unique & fun DIY electronics and kits
CR2032 Lithium Battery
Duracell CR2032 3V Lithium Coin Battery with Child Safety Features, Compatible with Apple AirTag, Key Fob, Car Remote, Glucose Monitor, and other Devices, CR Lithium 3 Volt Cell (2 Count Pack) - Walmart.com
Duracell CR2032 3V Lithium Coin Battery with Child Safety Features, Compatible with Apple AirTag, Key Fob, Car Remote, Glucose Monitor, and other Devices, CR Lithium 3 Volt Cell (4 Count Pack) - Walmart.com