SOC ESTIMATION METHOD, MOBILE POWER SUPPLY, AND READABLE STORAGE MEDIUM

The present invention discloses an SOC estimation method, a mobile power supply and a readable storage medium, which mainly calculate an electric quantity value of a fixed step size for the mobile power supply, and then sequentially superimpose a unit electric quantity step by step, and calculate an accumulated electric quantity of the mobile power supply from the last moment of SOC change, then compare the absolute value of the accumulated electric quantity with the electric quantity value of the fixed step size, and add the fixed step size to the SOC value or subtract the fixed step size from the SOC value or keep the SOC value unchanged based on the comparison result, and acquire an initial value of the accumulated electric quantity at the next moment. By acquiring the SOC value of the mobile power supply in the above manner, the division operation of the existing SOC estimation method can be replaced simply by using if judgment and addition and subtraction operations in actual programming, which greatly reduces the calculation amount for SOC estimation, reduces the consumption of computing resources and the occupation of storage space, thereby greatly reducing requirements for chip operational power and peripheral resources, reducing equipment energy consumption, improving the speed of SOC estimation and improving the computing stability.