Features: - High-grade Lithium-ion battery - Best quality in the market - 100% compatibility with specified laptop brand - 100% original capacity output Specifications: - Capacity: 4400mAh - Chemistry: Li-ion - Voltage: 11.1V - Cell: 6 cells Compatible Models: - HP ProBook 640 G0 - HP ProBook 640 G1 - HP ProBook 645 G0 - HP ProBook 645 G1 - HP ProBook 650 G0 - HP ProBook 650 G1 - HP ProBook 655 G0 - HP ProBook 655 G1 Compatible Part Number: - CA06, CA06XL 718677-421, 718678-421, 718755-001 , 718756-001 - HSTNN-DB4Y, HSTNN-LB4X, HSTNN-LB4Y, HSTNN-LB4Z, HSTNN-LP4Z Please check your battery's Compatible Model & battery picture carefully to ensure compatibility with your Laptop before purchasing this battery. What's in the box 1x Laptop Replacement Battery 1x User Manual