There are 5 models of watch batteries. Watch battery models are mainly divided into five types, namely lithium batteries, silver oxide batteries, solar cells and mercury oxide batteries. Each of these five types of batteries has its own advantages and disadvantages. When replacing a watch battery, you should choose based on the type of watch.
Characteristics of watch batteries
Lithium batteries use lithium metal as the negative electrode and have high voltage (generally 3V), low self-discharge rate and long life. the duration of the conversation. The silver oxide battery, with a voltage of 1.55 V, is the most commonly used battery in quartz watches. It has high energy density and stability and has no environmental pollution.
Silver peroxide battery, also known as diva silver batteryslow, voltage 1:55V. It has high capacity but poor voltage stability. Solar cells can convert light energy into electrical energy. Mercury oxide battery, the voltage is 1:35 V. This is the first watch battery developed. Due to environmental pollution, it is rarely used.
Advantages of lithium battery watches: accurate travel time, can be made thinner, very fashionable and beautiful.
Disadvantages of lithium battery watches: The battery usually runs out after 2-3 years and needs to be replaced. If you do not carry it often and do not discover that the battery is exhausted in time, the battery will be corrupted. And if the movement is corroded, there is no need to repair it.
A watch, also known as a wristwatch, is an instrument worn on the wrist to measure/display time. The watchesare usually made of leather, rubber, nylon fabric, stainless steel and other materials to make a bracelet, and the "head" that displays the time is attached to the wrist.
The operating principle of a watch. A watch is a precision instrument used to tell time. The principle of the instrument is to use a vibration system with constant period and continuous vibration as the standard. If you know the time it takes for the vibration system to complete one complete vibration (vibration period) and calculate the number of vibrations, then the time elapsed after vibrating that many times is equal to the vibration period times the number of vibrations .