石英表的电池一般可以用多久 / How long does the battery of a quartz watch generally last?

       石英表比机械表走时误差要小，对于一些懒人来讲，机械表需要经常上弦，而石英表有电池，走时不准的时候一般是电量不足，更换一块电池就能轻松搞定时间误差。一般情况下，我们去买石英表都会被告知，一块电池可以用个两三年。

       石英表电池因其外观也被称为扣式电池，电池的作用相当于机械表的发条，都是为手表指针走动提供动力。这种电池的特点包括容积小、容量高、使用期限长，各种扣式电池都是由正极、负极、电解质、隔离层和外壳 5部分组成。

      The time error of a quartz watch is smaller than that of a mechanical watch. For some lazy people, the mechanical watch needs to be wound frequently, and the quartz watch has a battery. When the time is inaccurate, the power is generally insufficient. Replacing a battery can easily fix the time error. Under normal circumstances, when we go to buy a quartz watch, we will be told that a battery can be used for two or three years.

       Quartz watch batteries are also called button batteries because of their appearance. The function of the battery is equivalent to the mainspring of a mechanical watch, which is to provide power for the movement of the watch hands. The characteristics of this battery include small volume, high capacity, and long service life. Various button batteries are composed of five parts: positive electrode, negative electrode, electrolyte, separator and shell.