The Renata CR1616 coin cell battery is a brand new, long-life silver oxide battery with a voltage of 1.55V. This non-rechargeable battery is suitable for various applications, such as watches, hearing aids, and other small electronic devices. With a 0% mercury content, this battery is environmentally friendly and reliable for extended use. The coin cell/button design makes it easy to install and ensures a secure fit in your device, providing a consistent power source for your everyday needs. Thanks for looking