Replacement laptop battery for MSI laptops & notebooks, models include GF63 Thin, GS63VR Stealth Pro, GF75 Thin, GS73VR Stealth Pro, 7RG-005, MS-17B4, MS-16K3, 7RG-036CN, 8RD-031TH, 9SC-088CN. This 4500 mAh Lithium-Ion battery is rated at 11.4V and has an average run time of Up to 5.0 Hours. This is an OEM replacement for MSI part numbers including BTY-M6K, MS-17B4, and MS-16K3. See the specs tab for detailed MSI laptop compatibility. The longevity rating is 500 cycles and it comes with a 1 year warranty. Micro Center offers Lenovo laptop battery replacement and installation services to ensure your laptop will be back up and running quickly, ask the store for details.