Apparatus and method for controlling charging of secondary battery pack

An apparatus and a method for controlling charging of a secondary battery pack is disclosed. A charging control device measures a first temperature of a first secondary battery selected from a plurality of secondary batteries, a second temperature of a coolant flowing into a cooling device, a charging current of a secondary battery pack, a first terminal voltage of the first secondary battery, anda second terminal voltage of a second secondary battery closest to the cooling device, estimates the temperature of the temperature estimation point of the second secondary battery according to a lumped heat model, determines the estimated temperature as the lowest temperature of the secondary battery pack, and changes the charging power supplied to the secondary battery according to the lowest temperature, wherein the lumped thermal model has thermal resistance between two points selected from a temperature estimation point of the second secondary battery, the first temperature measurement point, and the second temp