Lazada Laptop Replacement Battery Pack [Li-Polymer 5600mAh/63.5Wh] for Apple 13" A1331 A1342 MacBook (Late 2009, Mid 2010) 100% new from manufacturer, up to 500 recharge cycles over the life of the battery. Battery type:Li-polymer;Cells:6;Capacity:5600mAh/63.5Wh;Voltage:10.95V. Safe guarantee:CE-/FCC-/RoHS-Certified for safety. Grade A cells ensure fast charges and low power consumption; Built-in circuit protection ensures both safety and stability. Operation time: Over 2 hours, the actual operation time will depend on how much electricity is required by the device and how you use it.