Delivers more runtime, power and speed than standard lithium-ion batteries. The M18 REDLITHIUM™ battery is designed with superior pack construction, electronics, and performance to optimise work per charge and work over pack life. With built-in MILWAUKEE durability, this battery runs cooler and performs in climates below 0°F/-18°C.Managed by MILWAUKEE’s exclusive REDLINK Intelligence, the battery features overload protection to prevent you from damaging your cordless power tools in heavy-duty situations, while the discharge protection prevents cell damage. The temperature management system and individual cell monitoring help maximise battery life. Use this extended-capacity battery to power your MILWAUKEE M18 cordless power tools.