M18 and M12 multi-voltage charger accepts all M18 and M12 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 mins and extended capacity batteries in 60 mins, without the need for extra chargers on the jobsite. Single unit simplicity quickly charges all M12 and M18 battery packs. Single unit simplicity quickly charges all M12 and M18 battery packs. Charge management charger communicates with the battery pack to ensure a full charge and battery protection. Reduces time to manage charge cycles by sequentially charging the battery packs.