Powerful XR slide pack battery, fully compatible with all DeWalt 18V Li-ion tools. Delivers outstanding run time thanks to the XR intelligent switching electronics module. Output is also efficient, meaning tools can work for longer. XR technology protects the battery from potentially damaging effects such as overheating, overloading or deep discharge conditions. No memory effect and virtually no self-discharge offers maximum productivity with less downtime. Battery can also be used with the DeWalt multi-voltage charger.