The DEWALT DCB113 XR Multi-Voltage Charger varies the charge rate according to battery type to increase battery pack life. This charger is suitable for 10.8, 14.4 and 18V XR Li-ion slide type batteries. Its bright LED indicator communicates battery charge status: charged, charging, power problem and battery too hot or too cold. Specification: Voltage: 10.8/14.4/18VBattery Chemistry: Li-ionApprox. Charge Time 5.0Ah: 120 min.Approx. Charge Time 4.0Ah: 100 min.Approx. Charge Time 3.0Ah: 70 min.Approx. Charge Time 2.0Ah: 50 min.