| 摘要 |
A battery block (2) for use in a power source system (1) including battery blocks (2) is provided with: a secondary battery (B); a communication circuit (41) which outputs voltage information outside, the voltage information relating to a terminal voltage Vt of the secondary battery (B); a communication circuit (41) which acquires the voltage information output from another battery block (2) as other voltage information; and a discharge controller (43) which discharges the secondary battery (B) in a host battery block when a host voltage, which is the terminal voltage Vt of the secondary battery (B) in the host battery block, is higher than a terminal voltage indicated by the other voltage information. |
