DEGRADATION ESTIMATION DEVICE, DEGRADATION ESTIMATION SYSTEM, DEGRADATION ESTIMATION METHOD, AND COMPUTER PROGRAM

摘要

A degradation estimation device (1) comprises: a discharge control unit (11) for discharging a lead-acid battery (3) or a lead-acid battery module (4) including a plurality of lead-acid batteries until a prescribed SOC is reached; and a first estimation unit (11) for estimating the degree of degradation of the lead-acid battery (3) or the lead-acid battery module (4) on the basis of the internal resistance or conductance derived during discharge.