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A thermometer and hygrometer is a small electronic device used to monitor the temperature and humidity of the environment. Its design usually needs to take into account low power consumption, long life and high accuracy. Button batteries are an ideal power source for thermometers and hygrometers because of their small size, high energy density and stable discharge.

A sports bracelet, also known as a fitness tracker or smart bracelet, is a small electronic device worn on the wrist that is mainly used to monitor and record the user's physical activity, health status and sleep quality. It uses various sensors to collect data and synchronizes with a smartphone via Bluetooth to display detailed analysis reports on the accompanying APP.

The door magnetic alarm is a wireless sensor device widely used in the security field. It is mainly used to monitor the opening and closing status of doors, windows, drawers, etc., and trigger an alarm when they are opened abnormally. Its compact design and low power consumption make it highly dependent on button batteries for power supply.

When the console's main power source is removed or exhausted, the button battery provides a weak, continuous power to a special memory chip on the motherboard. This chip is responsible for storing key information such as your game progress, settings, time and date. Without this button battery, once the main power is disconnected, your saves will be lost. Maintaining the real-time clock: Some newer or special-purpose game consoles have a built-in real-time clock. The button battery is responsible for maintaining the clock when the main power is disconnected, ensuring that the in-game clock system (such as the day and night cycle or event triggering in some games) remains accurate after the console is turned on.

Children's luminous shoes usually have LED light-emitting components on the soles or uppers. The colourful light-up feature makes them very popular among children and adds an element of fun to walking.

The pace of life is accelerating and the application fields of the world, such as consumer applications, smart cities, smart living, smart healthcare and smart industry, are changing rapidly. This also poses a challenge for power supplies. Batteries are being used in increasingly extreme environments! How will the electrical performance and stability of batteries be affected by extreme temperatures?