The Ryobi IntelliPort™ charger is the heart of the ONE+ system of tools. It will charge any 18V ONE+ battery in one hour or less. Unlike other chargers that damage batteries which are left on them, IntelliPort technology conditions batteries for peak performance at all times. It protects battery cells, maximizes battery life and conserves energy. Updated indicator lights let you know if the battery is charging, defective and too hot or cold to charge. Users will have the confidence to complete any task at hand when their batteries are charged using IntelliPort technology.