ProductNO.: LBAC550D Type: li-ionCapacity: 4400 mAhVoltage: 14.8 VColor: DarkgreyCellSpec.: 18650Size: 128.00x98.20x23.30 (mm)NetWeight: 418 gCellQuantity: 8Series/Parallel:4S2PBatteryCode : BT.A0101.001;BTP-550,AT30N3L,CGR-B1840AE,BT.T3404.001,BATBY27L;HBT.0186.001;HBT.186.002FitLaptopModels: ACER270XV,272,272LC,272X,272XV,272XVI,273,273X,273XV,275,275LCSeries;Travelmate270,550Series