Lithium-ion battery XR 18V / 4A·h DCB182. DEWALT batteries with Li-Ion technology offer excellent durability. The 18V batteries are equipped with an LED charge indicator. These batteries are extremely light. Their weight in 18V is equivalent to the weight of a 12V battery in NiCd technology or NiMH. No memory effect and no loss of charge for maximum productivity. These batteries are compatible with all DEWALT tools in the XR 18V range. + 33% autonomy compared to previous 3A·h Li-ion batteries. No memory effect.