A storage battery control device adapted to control an assembly battery (20A1, 20A2, 20B1, 20B2) having a plurality of secondary battery cells (BC1 - BC4) connected to each other, comprising: at least one integrated circuit electrically connected to the assembly battery (20A1, 20A2, 20B1, 20B2) detachably via a connector (CN1, CN2), having a power supply adapted to supply internal power using a voltage of the assembly battery (20A1, 20A2, 20B1, 20B2), and adapted to monitor and control charging and discharging of each of the secondary battery cells (BC1 - BC4) of the assembly battery (20A1, 20A2, 20B1, 20B2); a bypass capacitor (C1, C2) disposed in a channel connecting a positive electrode-side external terminal and a negative electrode-side external terminal of the integrated circuit to each other; characterized in that at least one first current limiting element (EP1 - EP7) disposed in the channel and adapted to limit a charging current of the bypass capacitor (C1, C2) flowing through the channel when electrically connecting the assembly battery (20A1, 20A2, 20B1, 20B2) and the integrated circuit to each other; at least one first switch (SW1 - SW7) disposed in parallel to the first current limiting element (EP1 - EP7), and set to an ON state due to supply of the internal power from the power supply to short the first current limiting element (EP1 - EP7), wherein the first switch (SW1 - SW7) is set to the OFF state to allow the charging current to flow through the first current limiting element (EP1 - EP7) in a case in which the integrated circuit is not started up, and the internal power is not supplied from the power supply when the assembly battery (20A1, 20A2, 20B1, 20B2) and the integrated circuit are electrically connected to each other, and the first switch (SW1 - SW7) is set to the ON state to short the first current limiting element (EP1 - EP7) when the internal power is supplied from the power supply after the assembly battery (20A1, 20A2, 20B1, 20B2) and the integrated circuit are electrically connected to each other to start up the integrated circuit. at least one integrated circuit electrically connected to the assembly battery (20A1, 20A2, 20B1, 20B2) detachably via a connector (CN1, CN2), having a power supply adapted to supply internal power using a voltage of the assembly battery (20A1, 20A2, 20B1, 20B2), and adapted to monitor and control charging and discharging of each of the secondary battery cells (BC1 - BC4) of the assembly battery (20A1, 20A2, 20B1, 20B2); a bypass capacitor (C1, C2) disposed in a channel connecting a positive electrode-side external terminal and a negative electrode-side external terminal of the integrated circuit to each other; characterized in that at least one first current limiting element (EP1 - EP7) disposed in the channel and adapted to limit a charging current of the bypass capacitor (C1, C2) flowing through the channel when electrically connecting the assembly battery (20A1, 20A2, 20B1, 20B2) and the integrated circuit to each other; at least one first switch (SW1 - SW7) disposed in parallel to the first current limiting element (EP1 - EP7), and set to an ON state due to supply of the internal power from the power supply to short the first current limiting element (EP1 - EP7), wherein the first switch (SW1 - SW7) is set to the OFF state to allow the charging current to flow through the first current limiting element (EP1 - EP7) in a case in which the integrated circuit is not started up, and the internal power is not supplied from the power supply when the assembly battery (20A1, 20A2, 20B1, 20B2) and the integrated circuit are electrically connected to each other, and the first switch (SW1 - SW7) is set to the ON state to short the first current limiting element (EP1 - EP7) when the internal power is supplied from the power supply after the assembly battery (20A1, 20A2, 20B1, 20B2) and the integrated circuit are electrically connected to each other to start up the integrated circuit.