Secondary battery state management system, battery charger, secondary battery state management method, and electrical characteristics measurement method

A battery charger comprising:

• an electrical characteristic measuring unit comprising a memory and a processor which executes operations based on code stored in the memory, the operations comprising determining a measurement condition for a secondary battery and measuring an electrical characteristic during charging of the secondary battery based on the determined measurement condition;
• and
• a transmission unit, implemented by the processor, that transmits an electrical characteristic of the secondary battery measured by the electrical characteristic measuring unit to a determining device that determines a state of the secondary battery based on the measured electrical characteristic and a stored history of the electrical characteristic corresponding to the secondary battery.

A secondary battery state management method comprising:

• allowing a battery charger that determines a measurement condition for a secondary battery and charges the secondary battery to measure an electrical characteristics during charging based on the determined measurement condition;
• and
• allowing a storage server that includes a measurement information storage unit that stores a history of the electrical characteristic for the secondary battery to determine a state of the secondary battery based on the measured electrical characteristic and the history of the electrical characteristic that is stored in the measurement information storage unit and corresponds to the secondary battery.

An electrical characteristics measurement method comprising:

• allowing a battery charger that determines a measurement condition for a secondary battery and charges the secondary battery to measure an electrical characteristics during charging of the secondary battery based on the determined measurement condition;
• and
• allowing the battery charger to transmit the measured electrical characteristic of the secondary battery to a determining device that determines a state of the secondary battery based on the received electrical characteristic and a stored history of the electrical characteristic corresponding to the secondary battery.

A non-transitory computer readable information recording medium storing an electrical characteristics measurement program that is mounted on a computer that charges a secondary battery, when executed by a processor, performs a method for:

• determining a measurement condition for the secondary battery and measuring an electrical characteristic during charging of the secondary battery based on the determined measurement condition;
• and
• transmitting an electrical characteristic of the secondary battery measured to a determining device that determines a state of the secondary battery based on the received electrical characteristic and a stored history of the electrical characteristic corresponding to the secondary battery.