Energizer 2032 Coin Lithium Battery, Pack of 4 - FREE POST. These small and powerful batteries are perfect for everyday use in various electronic devices such as watches, calculators, keyless entry systems and more. The lithium composition of the battery ensures a longer lifespan and reliable performance. This pack of 4 batteries comes with an expiry date of 2033, ensuring that you have a long-lasting supply of batteries for your devices. The free postage also makes this an affordable option for those in need of reliable batteries. Energizer is a trusted brand known for their high-quality batteries, making this purchase a smart investment for your electronic needs.