Some of the popular battery sizes are AA, AAA, 9V, CR2032 (coin cell), etc. These sizes are standardized by IEC (International Electrotechnical Commission). In this article, we will discuss different battery sizes and their applications. The fundamental parameters of the battery sizes and the comparison between them are given in the table below.
Both primary and secondary batteries are available in C size. Alkaline, Lithium, NiMH, and Carbon Zinc are available in C size among which alkaline and lithium are the most common. The life and capacity of C-size batteries slightly vary with respect to the battery chemistry.
Batteries are available in different sizes. Each one is designed for a particular application. The most commonly used battery is the AA battery. It is used in clocks, TV remotes, toys, as well as some other household appliances.
The car battery industry uses a standard system from the Battery Council International (BCI). This system groups batteries into sizes based on their dimensions and performance. Each size meets the power needs of different vehicles. The common BCI group sizes for automotive power include Group 24, 27, 31, 34, and 65.
18650: This is the most common size, measuring 18mm in diameter and 65mm in length. It’s widely used in laptops, flashlights, and even electric vehicles. 21700: Slightly larger than the 18650, this battery measures 21mm in diameter and 70mm in length. It offers higher capacity and is becoming popular in electric vehicles and power tools.
Mobile Phones: Prismatic batteries are commonly used in smartphones due to their compact size. Tablets: These batteries are also found in tablets, offering a good balance of size and capacity. Portable Electronics: Various portable devices use prismatic batteries for their efficient space utilization. Part 4. Button lithium batteries