Customer First24 x 7 email support. We specialize in providing quality power products and quality customer service.(Note: return windows will close after one month, If you have any problem with battery, please Contact us - in "YOUR ORDER" options click the "contact seller".) Tech Specs & 100% New ProductsModel: BTY-M6M Voltage: 15.2V Capacity: 99.99Wh / 6578mAh Battery type: Li-ion Cell: 4-Cell. (We only use grade A battery cells that provide up to 500 recharge cycles over the life of the battery. Come with screwdrivers.) Compatible Part NumberFit for BTY-M6M / 4ICP8/35/142 Replacement For LaptopFor MSI Creator 15 Series For MSI GS66 Stealth SeriesFor MSI GE66 Raider Series For MSI GE76 Dragon Tiamat Series For MSI WS66 Intel 10th Gen Series For MSI WS66 Mobile Workstation Series For MSI WS66 Series For MSI WE76 Series Laptop SecurityAll Mobik products are certified by UL / CE / FCC / RoHS for safety. We are so confident in the performanc