The CR1632 Energizer ECR1632 2PK Lithium Battery. DL1632 is interchangeable. A pack of two high-quality coin cell batteries with a voltage of 3V and an amp hour of 0.13 Ah. These batteries have an expiration date of 12/2033 and are made of lithium chemical composition. Perfect for use in various consumer electronics devices, these batteries offer long-lasting power for your convenience. With free shipping and tracking included, this product ensures a reliable and efficient power source for your devices.