A backup power capacity determination method for an energy storage module, applied to a control module in a discharging circuit of an energy storage module, wherein the discharging circuit comprises a constant-current source discharging circuit and the control module, an output end of the control module is connected to a control end of the constant-current source discharging circuit, and an input end of the constant-current source discharging circuit is connected to an output end of the energy storage module;
- and the method comprises:
- acquiring the target type of the energy storage module in a preset scenario;
- determining the target discharging current corresponding to the target type according to the target type;
- and
- generating the control signal according to the target discharging current so as to control the constant-current source discharging circuit, such that when the energy storage module discharges by means of the constant-current source discharging circuit, the discharging current of the energy storage module is the target discharging current, and the backup power capacity of the energy storage module is calculated according to the target discharging current.