Quickly Estimating The Capacity of LiPo Battery

The capacity and model size of lithium polymer batteries are related, depending on the thickness, width, and length of the battery. In addition, 

it is also related to the material and size of the battery.

The actual calculation formula for the capacity of lithium polymer batteries is complex and not linearly related to volume Q. Many factors need 

to be considered, such as different materials, which have a significant impact on the actual capacity. The larger the size, the larger the 

capacity/volume ratio.

The commonly used estimation formula for quickly estimating the capacity of lithium polymer batteries is: capacity=thickness * width * length * K 

(K is in mah/mm ^ 3).

The range of K value is (0.07~0.11), which depends on the size of the capacity. The larger the capacity, the larger the K value, the smaller the 

capacity, and the smaller the K value (which can be understood as the larger the size, the larger the K value).

In actual calculations, the K value can be defaulted to 0.1. For example, 103450LP (thickness 10mm, width 34mm, length 50mm), calculated 

capacity=10 * 34 * 50 * 0.1=1700, actual capacity is above 1800mah; For example, 603048LP (6mm thick, 30mm wide, 48mm long) has a 

calculated capacity of 6 * 30 * 48 * 0.1=864, and the actual capacity can reach 900mah.