Ensure your specialised equipment never loses its charge with 5 Star CR2430 3V Lithium Coin Cell Batteries. Engineered for devices that require a wider coin-cell footprint and robust energy reserves, this 4-pack delivers consistent, long-term 3V power. Built under strict quality controls, 5 Star brings premium reliability to high-value tech essentials. From office security sensors and data loggers to specialty smart home remotes and medical monitors, these cells offer a highly dependable solution.