Energizer 1.55V 50mAh silver oxide watch battery (SR927W, SR927SW)
 
Energizer Silver Oxide Batteries are a reliable and long-lasting power source for your everyday devices. These batteries are ideal for small, everyday electronic devices such as watches, toys, and calculators. With a voltage of 1.55V and a high capacity, these batteries are designed to provide maximum power for longer periods of time.