Energizer CR2430 Lithium Coin Cell Battery 3V (2 Pack)

The Energizer CR2430 is a 3V lithium coin cell battery supplied in a 2-pack blister. Each cell measures 24mm diameter by 3mm height and delivers stable voltage output for low-drain devices including car key fobs, glucose monitors, fitness trackers, bathroom scales and remote controls. The lithium chemistry provides a flat discharge curve and shelf life of up to 10 years when stored at room temperature.

Designed for devices requiring intermittent power draw rather than continuous high current, the CR2430 suits applications where the device spends most of its time in standby or sleep mode but needs reliable power when activated. Typical use cases include keyless entry systems, wearable health monitors, digital thermometers and small LED torches. The 3V nominal voltage matches the requirements of most coin cell sockets in consumer electronics and medical devices.

The lithium construction gives the CR2430 a wider operating temperature range than alkaline equivalents, functioning from -30°C to +60°C. This makes the battery suitable for outdoor devices such as car key fobs in cold climates and indoor medical equipment in temperature-controlled environments. Each cell weighs approximately 5g, contributing minimal mass to portable devices. The blister packaging protects the cells from short-circuit during storage and transport.

Energizer CR2430 batteries are also sold under the reference codes DL2430, ECR2430 and BR2430 depending on the sales region. These are the same cell with different marketing designations, so a device specifying any of these codes will accept the Energizer CR2430. The 2-pack format provides a spare cell for immediate replacement when the first battery depletes.

What devices use CR2430 batteries?

CR2430 batteries power car key fobs, glucose monitors, fitness trackers, bathroom scales, remote controls, digital thermometers and small LED torches. Any device with a coin cell socket marked CR2430, DL2430, ECR2430 or BR2430 will accept this battery.

How long does a CR2430 battery last?

Battery life depends on the device's power draw. In a car key fob used 10-20 times daily, a CR2430 typically lasts 2-3 years. In a fitness tracker with continuous Bluetooth connection, expect 6-12 months. Medical devices with intermittent use may see 3-5 years of service.

Are CR2430 and CR2032 interchangeable?

No. Both are 3V lithium coin cells, but the CR2430 measures 24mm diameter by 3mm height, while the CR2032 measures 20mm diameter by 3.2mm height. They are not physically compatible with each other's battery compartments.

What is the shelf life when unopened?

Energizer rates lithium coin cells at up to 10 years shelf life when stored in the original blister packaging at room temperature (approximately 20°C). The best-before date is printed on the packaging.