Koopman's button batteries are a reliable power source for a variety of devices. These LR44 batteries, also known as AG13, are non-rechargeable and provide consistent performance suitable for use in watches, calculators, toys, and other small electronic devices. With a pack of 12, they are ideal for regular use and quick replacement of dead batteries. The zinc-air technology ensures a long lifespan and stable energy output, making them a practical choice for everyday needs. These batteries come in a compact format that is easy to store and transport.

• Zinc-air technology for reliable performance
• Suitable for a variety of devices such as watches and toys
• Pack of 12 for long-term use
• Non-rechargeable, ideal for single-use.