1. First, prepare an electronic thermometer, as shown in the figure, an electronic thermometer whose battery will be used up.
2. Then remove the cap at the end of the electronic thermometer, and you can see the battery and battery model inside.
3. Use a thin and hard needle to pry the battery in the battery hole, and the battery can come out.
4. Carefully observe the removed battery model and select a battery of the same type.
5. Install the battery into the battery hole. After installing the battery, push the inner wire plate into the thermometer.
6. Finally, cover the tail cap just removed, and open the button to continue using it.
