Drop in style 4-Slot Battery Charger with LEDs to indicate Charge State. Can be docked and powered in the 5-Slot Cradle via adapter cup (sold separately) or used standalone. When used stand-alone requires Power Supply PWR-BGA12V50W0WW and requires a DC line cord: CBL-DC-388A1-01 and country specific AC line cord (cords sold separately). Compatbile with both PowerPrecision and PowerPrecison Plus batteries.