If you need to replace your defective HP Probook 640/645/650/645 G1 series battery we have a great replacement. This is a 100% HP compatible battery pack. It is rated at 10.8v and 5200mAh with 6 cells. This battery is black in color.
Comp. Models: Probook 640-G1, 645-G1, 650-G1, 655-G1
Part Numbers: HSTNN-LB4X, 718677-421, 718678-421, 718755-001, 718756-001, HSTNN-DB4Y, HSTNN-LB4Y, HSTNN-LB4Z, HSTNN-LP4Z, CA06XL