Duracell CR2025 lithium coin batteries are made with high-purity lithium, providing long lasting power for your specialty devices. They have up to 10 years of in-storage guarantee (storage conditions between 10°C and 25°C) so you can be confident these lithium coin batteries will be ready when you need them. To help increase the level of child security, Duracell has developed a child resistant packaging, a tamper-proof pack with double blister designed to make it practically impossible for young children to open with bare hands. Can only be opened with scissors. Suitable for use in keyfobs, weighing scales, small remotes, sensors, medical devices, fitness and sports devices, security devices and more.