The Five Common Types of Watch Batteries
1. Silver Oxide Battery
Silver oxide batteries, also known as silver-zinc batte
The Five Common Types of Watch Batteries
1. Silver Oxide Battery
Silver oxide batteries, also known as silver-zinc batteries, operate at 1.55V and are the most commonly used batteries in quartz watches. They offer high energy density and stability without environmental pollution. Unlike regular batteries, whose voltage gradually declines with use, the voltage of silver oxide batteries drops suddenly only towards the end of their life, greatly benefiting the precision of quartz watches. However, it’s challenging to measure their charge level through simple methods.
2. Silver Peroxide Battery
Silver peroxide batteries, also known as divalent silver batteries, also have a voltage of 1.55V. They are known for their high capacity but have poorer voltage stability.
3. Mercury Oxide Battery
Mercury oxide batteries, or mercury batteries, have a voltage of 1.35V. They were among the first types of batteries developed for watches. Due to their environmental impact, their use has significantly declined.
4. Lithium Battery
Lithium batteries use metallic lithium as the anode, characterized by a high voltage (usually 3V), low self-discharge rate, and long shelf life. They have a broad range of applications.
5. Solar Battery
Solar batteries can convert light energy into electrical energy. They generally have secondary batteries (such as nickel-cadmium batteries) that, with just a short period of exposure to sunlight or artificial light each day, can keep the watch running normally.
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