Charges XR Lithium Ion DeWalt 12V MAX to 20V MAX Slide Pack batteriesDeWalt 2 stage charging systemBattery chemistry: Lithium IonCharging current: 2 ampsCharging time (2.0Ah battery): 60 minutesHeight: 2-1/2″ (65 mm)Length: 6″ (145 mm)Width: 4-1/2″ (115 mm)Weight: 12.7 oz. (0.36 kg)Diagnostics with bright LED indicator communicates battery charge status:Pack ChargingPack ChargedHot/Cold Delay