Li-po notebook batteries opens up new mobility and usage possibilities of your devices. These batteries are manufactured using new, high-quality, balanced features, rechargalbe cells that ensures the longest battery life and maximum capacity. These batteries do not have "memory effect," so they can be recharged at any time convenient for the user.Unique microcontrollers used in batteries: - Protects the battery from overload, overheating and ignition;- Optimizes the discharge settings to maximize battery capacity;- Ensures device safety during both heavy load and standby mode.The battery is suitable for the following computer models: Apple MacBook Pro 15 inch (Early 2011); Apple MacBook Pro 15 inch (Late 2011); Apple MacBook Pro 15 inch (Mid 2012); Apple MacBook Pro 15 inch MC721LL/A; Apple MacBook Pro 15 inch MC723LL/A; Apple MacBook Pro 15 inch MD103LL/A; Apple MacBook Pro 15 inch MD104LL/A; Apple MacBook Pro 15 inch MD318LL/A; Apple MacBook Pro 15 inch MD322LL/A; Apple MacBook Pro 15.4 inch (A1286) Mid 2012; Apple MacBook Pro 15.4 inch Early 2011; Apple MacBook Pro 15.4 inch MC721LL/A; Apple MacBook Pro 15.4 inch MC723LL/A; Apple MacBook Pro 8.2; Apple MacBook Pro 9.1; MacBook Pro 15" MB985; MacBook Pro 15" MB986.The battery is suitable for use instead of these original battery models: A1382; 661-5844; 020-7134A.Technical specification:Capacity: 58Wh/ 5400 mAhElement type: Li-PoVoltage: 10.8 VColor: blackNotes: The list of compatible batteries and computers may not be complete. In case of doubt, always consult a consultant.Warranty: 12 monthsManufacturer: Extra Digital