How to calculate the capacity of a lithium polymer battery by knowing its size?
Usually, designers know the space for batteries in the product and do not know how large a capacity battery can be made. They can calculate the capacity of the battery through a public trial, without the need for further samples to measure the capacity.
For example, a lithium battery with a voltage of 3.7V, a length of 55mm, a width of 40mm, and a thickness of 10mm By using the formula, the capacity can be calculated to be approximately 2650mah-2950mah.