Dewalt DCB182 18 Volt XR Lithium Ion Battery The Dewalt DCB182 4.0Ah Li-ion battery is part of the XR range, offering extended runtime and optimised power to complete applications quickly. It is extremely lightweight, providing the user with upgraded 4Ah Power without increasing the size or weight over the 18V 3Ah battery pack. The LED state of charge indicator allows you to see the level of charge in the battery, so you\'re always prepared for the job. Customers who bought this battery say: \"Huge amount of power to get the job done.\"  Features: Provides 33% more runtime than the 3Ah equivalent. Lightweight design provides the user with 18V power for the equivalent of 12V NiCd/NiMH pack weight No memory effect and virtually no self-discharge for maximum productivity & less downtime Compatible with all DEWALT XR Li-Ion 18V Tools Excellent electrical characteristics Specification: Battery Capacity: 4.0 Ah Voltage: 18V Height: 60 mm Length: 120 mm Compatible with All 18V XR Li-Ion DEWALT tools Net Weight: 0.64kg