The invention provides an alkaline storage battery system with which partial charging-discharging is performed, that synergistically exhibits an effect of reducing the addition amount of zinc to a positive electrode mixture, an effect of reducing the concentration of an alkaline electrolyte, and an effect of increasing the content of lithium in the alkaline electrolyte. The alkaline storage battery including an electrode group having a hydrogen storage alloy negative electrode using a hydrogen storage alloy as a negative electrode active material, a nickel positive electrode using nickel hydroxide as a main positive electrode active material, and a separator; an alkaline electrolyte; and an outer can accommodating the electrode group and the alkaline electrolyte. Furthermore, zinc (Zn) is added to nickel hydroxide that is the main positive electrode active material in the nickel positive electrode with an addition amount of 5% by mass or less with respect to the mass of nickel in the positive electrode active material, the alkaline electrolyte has a concentration of 6.5 mol/L or less, the alkaline electrolyte contains lithium (Li) of 0.3 mol/L or more, and the alkaline storage battery system is arranged to enable partial charge-discharge control.