Laptop battery replacement for VAIO SR Series,VGP-BPL13 4400mAh/49Wh 6 cells+Free Thumb Brand Bracelet Gift Replacement Brand:SONY Cells QTY:6,N.W.:324g Voltage(V):11.1V Capacity:4400mAh/49Wh Dimension:204.4*57.5*21.1mm,Color:Silver