Replacement battery fits 257 MSI compatible models. Specifications: 5100mAh, 14.4V, Li-ion. Compatible with: WT75 8SM-028CA, GT75 8RF, GT73VR 7RE-298(0017A1-298), GT75VR 7RF-033(0017A2-033), GT73VR 6RF4K32SR451 TITAN PRO, GT80 TITAN SLI-253 and 251 more compatible models. Replaces: MSI BTY-L78. MSI replacement battery designed for Notebook/Laptop devices. Dependable performance you can count on.