Battery, assembled battery unit, vehicle equipped with battery, and battery voltage adjusting method

An assembled battery unit comprising:

• a plurality of secondary batteries connected in series;
• and
• a discharging section configured and arranged to constantly discharge electricity from each of the secondary batteries at a constant discharge rate so that a voltage of each of the secondary batteries is lower than a voltage corresponding to when a depth of discharge exceeds 100%.

A battery voltage adjusting method comprising:

• providing a plurality of battery elements connected in series;
• and
• constantly discharging electricity from each of the battery elements at a constant discharge rate so that a voltage of each of the battery elements is lower than a voltage corresponding to when a depth of discharge exceeds 100%.

A battery comprising:

• electricity generating means for generating electricity using a plurality of battery elements connected in series;
• and
• discharging means for constantly discharging electricity from each of the battery elements at a constant discharge rate so that a voltage in each of the battery elements is lower than a voltage corresponding to when a depth of discharge exceeds 100%.