HP ProBook 640 G2 Laptop Battery Replacement (CI03 / HSTNN-PB6K Series)

This HP 640 G2 battery is a reliable replacement designed to restore original battery performance for HP ProBook 640 G2 series laptops. It is fully compatible with the CI03 / CI03XL battery family commonly used across HP 640 G2 and related G2 business models such as 645 G2 and 650 G2. Built with high-quality lithium-ion cells, it delivers stable 11.4V output and consistent runtime for everyday computing tasks such as office work, browsing, and general productivity use. The battery is designed as an internal removable unit, making installation straightforward. It includes essential safety protections such as overcharge, over-discharge, and short circuit protection to ensure safe and reliable operation.