Panasonic Cr2450 Lithium 3v Battery (Pack of 4) - Walmart.com
CR2450/VAN - CR2450 Panasonic Lithium Coin Cell with S+ S-
Panasonic CR-2450 Lithium Coin Battery 3v - Pack of 5 Provide Long Lasting Power in a Variety of Devices,from keyless-Entry fobs to Toys : Amazon.in: Toys & Games
Panasonic CR-2450/BD, 3 Volt, 600MAH Lithium Coin Cell Battery