Milwaukee M12-18C Multi-Voltage Battery Charger The M18 & M12 Multi-Voltage Battery Charger charges packs up to 40% faster, reducing downtime and maximizing productivity. The charger accepts all M18 and M12 batteries, providing an upgrade for both systems. Featuring REDLINK Intelligence, it communicates directly with the battery to monitor cell voltage, temperature and charge status to optimize the performance and extend the life of the pack. As an added level of communication, the charger indicates when the battery reaches an 80% charge, providing confidence that a substantial amount of work can be completed without waiting for a full charge. Features: Charges batteries up to 40% faster Charges all M12 and M18 batteries Sequential charging: automatically charges the second inserted pack once the first pack is fully charged REDLINK Intelligence: charger communicates with the battery pack to ensure optimum performance and extend life Specification: Voltage: 12V and 18V Weight: 0.9kg