Delivers more runtime power and speed than standard lithiumion batteries. The M18 REDLITHIUM XC Extended Capacity Battery is designed with superior pack construction electronics and performance to optimize work per charge and work over pack life. It offers 3.0 amphours of runtime. With builtin Milwaukee durability this battery runs cooler and performs in climates below 0F/18C.Managed by Milwaukees exclusive REDLINK Intelligence the battery features overload protection to prevent you from damaging your cordless power tools in heavyduty situations while the discharge protection prevents cell damage. The temperature management system and individual cell monitoring help maximize battery life. Use this extendedcapacity battery to power your Milwaukee M18 cordless power tools.