Retired battery consistency determination method and device, electronic equipment and medium

The invention provides a retired battery consistency determination method and device, electronic equipment and a medium, and relates to an energy storage battery technology. The method comprises the following steps: discharging a plurality of retired batteries in a full charge state according to a preset discharge rate; a plurality of retired batteries need to be recombined; discharging data of the retired batteries before the retired batteries reach the preset capacity are obtained, and after the retired batteries reach the preset capacity, the discharging voltage is in a decreasing trend; and determining the consistency of the remaining service life of each retired battery according to the discharge data. According to the method provided by the invention, the residual service life consistency of the retired battery can be determined more simply and conveniently.