ProductNO.:LBAC58A1HBType:li-ionCapacity:6600mAhVoltage:14.8VColor:GreyCellSpec.:18650Size:138.00x95.10x24.40(mm)NetWeight:410gCellQuantity:12Series/Parallel:4S3PBatteryCode:60.41H15.001,BTP-34A1FitLaptopModels:ACERTravelMate520,521,524,525,527,528,529,530Series