Based on internal testing using 45W and 90W power adapters from full depletion to full charge. Compatible with HP laptops that charge through a USB-C™ charging port. Charging times may vary depending on amount of power left in battery pack, power rating of charger and environmental factors.
 Based on internal testing, compatible with USB-C™ charged HP Laptops using 40W or greater USB-C™ AC adapters. Visit the HP Support page to determine your laptop's wattage and port specifications.