The CS03XL Notebook Battery is not compatible with CM03XL Notebook Battery.

Compatible Part Numbers:

CS03 CS03XL CS03046XL 3ICP6/65/79 800231-141 800513-001 800231-1C1 T7B32AA HSTNN-I33C-4 HSTNN-I41C-4 HSTNN-I33C-5 HSTNN-I41C-5 HSTNN-IB6Y HSTNN-UB6S

Compatible with HP Laptop Models:

For HP Elitebook 745 G3 Series, For HP EliteBook 745 G4 Series, For HP EliteBook 755 G3 Series, For HP EliteBook 755 G4 Series

For HP EliteBook 840 G3 Series, For HP EliteBook 840 G4 Series, For HP EliteBook 850 G3 Series, For HP EliteBook 850 G4 Series

For HP ZBook 15u G3 Series, For HP ZBook 15u G3 Mobile Workstation, For HP ZBook 15u G4 Mobile Workstation

For HP mt42 Mobile Thin Client, For HP mt43 Mobile Thin Clien