The RYOBI 40V Lithium-Ion Rapid Charger is a reliable and efficient charging unit designed for lithium-ion batteries in power tools. With a maximum voltage of 40V and the ability to charge one battery at a time, this charger is perfect for keeping your tools powered up and ready for use. The sleek green color and compact design make it a convenient addition to any workshop or tool storage area. You can trust in the quality and durability of this charger for all your charging needs.