A polycarbonate resin composition for a battery pack, which comprises: 100 parts by mass of (A) a polycarbonate-based resin composed of 5 to 100 mass% of a polycarbonate-polyorganosiloxane copolymer (A-1) whose main chain is formed of a structural unit represented by the general formula (I) and a structural unit represented by the general formula (II), and that contains 2 to 10 mass% of a polyorganosiloxane block, and 0 to 95 mass% of an aromatic polycarbonate (A-2) except the copolymer (A-1); and 0.01 to 1 parts by mass of (B) a phosphorus-based antioxidant; and a battery pack formed by using the resin composition.
