HP ProBook 640 G1 645 650 350 655 G1 G2 G0 CA06 CA06XL CA09 CA09XL CA06055XL 718677-421 718678-421 718755-001 718756-001 HSTNN-DB4Y HSTNN-LB4X HSTNN-LP4Z

The HP ProBook series, including models like the 640 G1, 645, 650, 350, 655 G1, G2, and G0, are business-class laptops designed for reliability and performance. These models are commonly used in professional environments due to their durability and features tailored for business needs.

Batteries: The battery models you listed, such as CA06, CA06XL, CA09, CA09XL, and their respective part numbers (e.g., 718677-421, 718678-421), are compatible with various HP ProBook models. Here’s a brief overview:

HP CA06/CA06XL: These are standard batteries often used in earlier ProBook models. The “XL” indicates a higher capacity version.
HP CA09/CA09XL: Similar to the CA06, but generally designed for newer models or with higher capacity for longer battery life.
718677-421/718678-421: These part numbers correspond to specific battery models for ProBooks, providing different capacities and compatibility.
Compatibility:

HSTNN-DB4Y, HSTNN-LB4X, HSTNN-LP4Z: These are battery model numbers that typically indicate compatibility with the ProBook series. They often refer to standard and extended batteries for these laptops.
These batteries are designed to fit specific HP ProBook models and provide reliable power solutions for these laptops, ensuring extended usage times and compatibility with their respective ProBook version