Panasonic CR2450 Lithium 3V Battery 4-Pack

The Panasonic CR2450 is a 3-volt lithium coin cell battery sold here in an economical 4-pack. Lithium chemistry gives the CR2450 a notably flat discharge curve, meaning devices receive a stable 3V supply from a fresh cell all the way through most of its usable life — an important trait for sensitive electronics like glucose monitors, tire-pressure sensors, and keyless entry remotes that depend on consistent voltage to function properly.

Panasonic's manufacturing process yields a cell with extremely low self-discharge, so batteries stored in a drawer or emergency kit retain their charge for years. The CR2450 form factor — 24.5 mm diameter by 5.0 mm thick — is physically larger and higher-capacity than the ubiquitous CR2032, making it the correct replacement only for devices specifically designed for the 2450 size. With four cells in the pack, you can replace a depleted battery immediately and keep spares staged for the next swap, reducing downtime for the devices you rely on daily.