To provide a technology for judging and diagnosing whether deterioration of a secondary battery is normal or abnormal, and an information gathering equipment capable of obtaining information useful for the same.

The device is for judging whether the deterioration of the secondary battery is normal or abnormal, and is provided with a device for measuring a deterioration index of the secondary battery, a device for grasping a volume of use of the secondary battery, and a device for comparing a volume of the use of the secondary battery when the measured deterioration index exceeds a deterioration reference value, with a standard volume of usage. By diagnosing the secondary battery with the device, it is known whether the deterioration of the secondary battery is normal or abnormal.