Tech SpecsModel: CC03XL. Voltage: 11.55V. Capacity: 53Wh/ 4400mAh. Battery type: Li-ion Color: Black Fit for Laptop ModelsFit for HP ZBook Firefly 14 G7 G8, Fit for HP EliteBook 830 G7/ 835 G7/ 840 G7/ 845 G7 Series, Fit for HP EliteBook 830 G8/ 835 G8/ 840 G8/ 845 G8 Series, Fit for HP Probook 635 Aero G7 G8 Series Replacement for BatteryCC03XL HSTNN-DB9Q L77608-2C1 HSTNN-IB9F L77608-1C1 HSTNN-LB8Q L77608-421 L78555-005 Important NotePlease read the manual carefully after you receive the battery. Please open the back case of your laptop and check out the exact part number of your laptop's original battery before placing your order After-salesWe specialize in providing quality power products and quality customer service.7 x 24 email support