Parallel calibration tool of lithium battery formation and capacity grading equipment

The invention discloses a parallel calibration tool for lithium battery formation and capacity grading equipment. The parallel calibration tool comprises a main control module, a channel switching module, a detection mode switching module and an electric physical quantity detection module, the main control module is in signal connection with the channel switching module, the detection mode switching module and the electric physical quantity detection module. The channel switching module can switch in or switch out each output channel of the lithium battery formation and capacity grading equipment to the detection mode switching module under a control signal given by the main control module; the detection mode switching module can be switched to one of a charging current detection mode, a charging voltage detection mode and a discharging current detection mode under a control signal given by the main control module, and is connected to the electric physical quantity detection module. According to the calibrati