Replacement Apple A1189 battery by Amstron provides reliable performance in your Apple laptops. This precision-engineered Lithium-Polymer battery is designed for use in the Apple MackBook Pro 17 inch. The LMA-24 is designed to replace Apple part numbers A1189, MA458, MA458*/A, MA458G/A, and MA458J/A. Take your work on the road with you without sacrificing performance and productivity with Amstron brand Sony laptop batteries. • Chemistry: Li-Ion • Rating: 10.8V 6000mAh • Will Meet or exceed original specifications • Warranty: 1 Year