HP ProBook 4520s / 4320s / Compaq 620 Laptop Battery Replacement (PH06 Series)

This HP 620 / 4520 / 4320 laptop battery is a reliable replacement designed to restore original battery performance for HP ProBook 4320s, 4520s, and HP Compaq 620 series laptops. It is fully compatible with the PH06 battery family, which is widely used across these models and related configurations. Built with high-quality lithium-ion cells, it delivers stable 10.8V–11.1V output and consistent runtime for everyday computing tasks such as office work, browsing, and general business use. The battery is designed as a removable internal unit, making installation simple and fast. It includes essential safety protections such as overcharge, over-discharge, and short circuit protection to ensure safe and reliable operation.