CR1632 Lithium Coin Cell Battery 3 Volt 4 Pk Long Lasting Power Mercury-Free CTB

4 2 Packs. Total of 8 batteries DEVICE COMPATIBLE: Ideal for watches, calculators, games, medical devices, and more LONG LASTING: Long-lasting, reliable battery life; performs in extreme temperatures EASY USE & STORAGE: Easy to open and store extras for later; ships in child resistant packaging; contains zero mercury SINGLE USE: These batteries are NOT rechargeable; for rechargeable options, check out Amazon Basics rechargeable batteries EASY IDENTIFICATION: Engraved with battery model for quick identification