The M12 and M18 multi-voltage charger accepts all M12 and M18 batteries, so you’ll always be prepared and productive, especially on jobs that require a mix of M12 and M18 Milwaukee cordless power tools. This versatile unit charges batteries sequentially, reducing your time to manage charge cycles. The charger communicates directly with the battery pack to monitor cell voltage, temperature and charge status to ensure a full charge. Power up your Milwaukee compact batteries in 30 minutes and extended capacity batteries in 60 minutes, without the need for extra chargers on the jobsite. The Milwaukee 48-11-1828 M18 XC high capacity Red Lithium battery is designed with superior pack construction, electronics, and performance to optimize work per charge and work over pack life. It offers 3.0 amp-hours of runtime. With built-in Milwaukee durability, this battery runs cooler and performs in climates below 0F/-18C. Managed by Milwaukee's exclusive red link 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.