Model: BTY-M6K ; Voltage: 11.4V ; Capacity: 52.4Wh 4600mAh. Replacement for Part Number: BTY-M6K MS-17B4 MS-16K3 Compatible Models: MSI GS73 GS73 7RE-004CN GS63 GS63 7RE-009CN GS63 7RE-018CN GS73VR GS73VR 6RF-013CN GS73VR 7RG-035CN GS73VR 7RF-284CN GS63VR GS63VR 6RF-016CN GS63VR 7RF-258CN GS63VR 7RF-239CN GS63VR 6RF-095CN Security: All Anepoch products are Certified by CE, FCC for safety. Strict guidelines for compatibility, and standards compliance for environment safety. Support: 24 x 7 Email support, Rest assured with 30 days Refund12 months Replacement,if there is any problem, please feel free to contact me and I will solve it for you immediately.