The New 8755mah / 99.5Wh 11.36V A1618 Laptop Battery is a high-quality replacement battery specifically designed for the MacBook Pro Retina 15'' 15.4" A1398 (2015) model. It offers a discounted price and features Grade A cells for long-lasting performance. The battery is 100% OEM compatible and certified by CE, FCC, and RoHS.