What is a Battery?
A battery is a device that converts chemical energy into electrical energy. Essentially, it generates an electric current through chemical reactions between a positive (+) and a negative (-) electrode.
A pen battery is a portable type of battery with a cylindrical shape, commonly used in small electronic devices. Inside the pen battery, there are an anode (+) and a cathode (-) that produce electrical energy through chemical reactions.
Pen batteries come in various sizes and chemical compositions. Here are some types of pen batteries:
AAA Battery: Used in small household appliances, remote controls, and digital cameras.
AA Battery: Commonly used in remote controls, toys, clocks, and many other portable devices.
C Battery: Used in larger devices such as flashlights, portable radios, and some toys.
D Battery: Used in larger flashlights, portable radios, and some big toys.
9V Battery: Used in remote controls, smoke detectors, and other specialized devices.
AA batteries are available in both rechargeable and disposable forms. They are designated as R6 according to IEC 60086 standard and 15 according to ANSI C18 standard.
AA batteries typically have a voltage of 1.5V unless otherwise specified by the manufacturer. They have a length ranging from 49.2 to 50.5 mm and a diameter of 13.5 to 14.5 mm. Alkaline AA batteries weigh approximately 23g, lithium AA batteries weigh around 15g, and rechargeable Ni-MH AA batteries weigh about 31g.
AAA batteries are available in both rechargeable and disposable forms. They are designated as R03 according to IEC 60086 standard and 24 according to ANSI C18 standard.
AAA batteries typically have a voltage of 1.5V unless otherwise specified by the manufacturer. They have a length of approximately 44.5 mm and a diameter of 10.5 mm. Alkaline AAA batteries weigh around 11.5g, lithium AAA batteries weigh 7.6g, and rechargeable Ni-MH AAA batteries weigh about 14-15g.
The lifespan of a pen battery varies depending on the type of device it is used in, the chemical composition of the battery, and usage conditions. Generally, a typical alkaline pen battery can last between 1 to 5 years. However, devices with high energy requirements may deplete the battery life more quickly.
Watch batteries are specifically designed for use in watches and are often button cell batteries. For example, CR2032 is a commonly used watch battery.
You can find suitable watch batteries for your needs on Robotistan.com.