Charge an 18V 2.0 Ah advanced lithium-ion battery in approximately 45 minutes with this Ridgid Advanced Lithium-Ion Battery Charger (43458). It's designed to charge Ridgid advanced 18V 2.0-Ah and 18V 4.0-Ah lithium-ion batteries. The range of yellow, red and green solid and blinking LEDs indicate your battery pack charging status. This unit is compatible with the Ridgid ProPress and SeeSnake monitor stations.