Amazon.com: 3V CR2032 Lithium Coin Battery with 2 Inch Leads : Health & Household
371-2210 Sun Lithium Battery CR2032 3V (Refurbished)
RAZ MAGIC POWER Adapter Battery Eliminator 2-CR2032 Dummy Battery's 3416184 £7.38 - PicClick UK
Lilypad Arduino -10 Pack of Coin Cell CR2032 Battery Holders with Switch - Save Batteries, Switch Off LEDs-Ideal for Schools & Large Projects, Pack of 10 - Walmart.com