Brand: Apple Part No: A1280, MB771, MB771*/A, MB771J/A, MB771LL/A Fit Model: MacBook 13" A1278, MacBook 13" Aluminum Unibody 2, MacBook 13" MB466*/A, MacBook 13" MB466CH/A, MacBook 13" MB466J/A, MacBook 13" MB466LL/A, MacBook 13" MB466X/A, MacBook 13" MB467*/A, MacBook 13" MB467CH/A, MacBook 13" MB467J/A, MacBook 13" MB467LL/A, MacBook 13" MB467X/A Volts:10.8 Type:Li-Polymer Capacity: 4200mAh Color: Silver Grey; Dimension:209.41 x 78.65 x 20.85mm; GrossWeight: 473.9 NetWeight: 323.9