The De Walt DCB184 18V 5 Ah XR Li-Ion Battery will deliver a distinctly impressive 66 percent longer runtime than a normal/standard 3.0 Ah battery pack. This means you can complete jobs quicker & more easily thanks to less time spent charging or changing batteries. The DCB184 has an LED state of charge indicator so you can manage your charging quickly & easily. It is lightweight & its design gives you an upgraded 5 Ah while not compromising on size or weight. This battery has no memory effect & virtually no self-discharge, this means maximum productivity & minimum downtime. Handily, it is compatible with all De Walt XR Li-Ion 18V Tools & is protected against overheating, overload & deep discharge, increasing your batterys life.