@sh.add_function(dsp, outputs=['drive_battery_nominal_voltage'])
def identify_drive_battery_nominal_voltage(drive_battery_voltages):
"""
Identify the drive battery nominal voltage [V].
:param drive_battery_voltages:
Drive battery voltage [V].
:type drive_battery_voltages: numpy.array
:return:
Drive battery nominal voltage [V].
:rtype: float
"""
return np.median(drive_battery_voltages[drive_battery_voltages > dfl.EPS])