The Xtar MC2 is a lithium-ion battery charger with two charging bays. The MC2 is suitable for charging the following batteries 14500, 14650, 16340, 17500, 17670, 18350, 18500, 18650, 18700, 22650 lithium-ion type batteries. For charging 3.6 V or 3.7 V lithium-ion batteries only.