باتري لپ‌تاپ سوني SONY Laptop Battery BPS13 SILVER / 6CELL 4400mAh / 49Wh / Compatible with VGP-BPS13, VGP-BPS13A, VGP-BPS13A/B, VGP-BPS13B/S, VGP-BPL13, VGP-BPS21, VGP-BPS21A, VGP-BPS21B, PCG-81214L, PCG-81114L