This is a rechargeable Li-Polymer original battery for Apple laptops with a battery rating of 11.36V and a capacity of 8755mAh. It has 6 cells and is black in color. The battery is compatible with various MacBook Pro models and comes with a one-year warranty. The original cells are stable and provide a longer-lasting life and standby time. Orders are easy to place and are shipped quickly with a tracking number provided. The seller has over 10 years of experience selling online and has shipped to over 70 countries worldwide.