The button battery in the calculator is used as either the main or backup power source to ensure stable operation under various lighting conditions, as well as to maintain important memory data and settings. Its small size, reliability and long life make it ideal for portable calculators.

The miniaturisation and lightening of primary batteries is one of the core requirements for developing current electronic devices, particularly in light of the growing popularity of technologies such as the Internet of Things (IoT), 5G, wearable devices, medical implants and micro-sensors. Button batteries are a prime example of miniaturised primary batteries, meeting this trend through material innovation, structural optimisation and manufacturing process upgrades.

Power Glory is the supply chain partner of the world's major computer motherboard manufacturers. In order to ensure the normal operation of the computers, the 3v CR2032 button batteries are usually installed on the motherboard.

Discover the top 5 industries using lithium micro batteries in 2025. Learn how Power Glory Battery Tech supports wearables, IoT, medical, and more.

Lijia Technology was presented as the world's leading lithium battery solution service provider.