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Energizer CR2016 (4 pcs) 3V Lithium Coin Cell Button Battery CR-2016 Original CR 2016 Batteries 100% ORIGINAL 100% BRAND NEW Energizer CR2016 4 pcs Reliable performance in devices like heart-rate monitors,keyless entry, glucose monitors, toys & games Holds power for 8 years in storage Performs in extreme temperatures (-22 to 140 F) Child Resistant Packaging Cell size: 2016 IEC: CR2016 Type: Lithium Coin Volt: 3