Upgrade your MacBook Pro with the A1964 Laptop Battery for reliable and long-lasting performance. This high-quality Li-Polymer battery offers a capacity of 5086mAh and a voltage of 11.41V. It is compatible with Apple MacBook Pro models A1989 and A2251, providing excellent power backup. With its easy installation and 12-month warranty, the A1964 Laptop Battery is the perfect choice for upgrading your MacBook Pro.