Less Swapping, More Charging. The M12™ Four Bay Sequential Charger reduces the amount of time spent changing out batteries, increasing productivity on the jobsite. Its slim design makes it the perfect solution for a bench top, as well as storage and transportation of packs on and off the jobsite.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.The charger offers a compact design, integrated hang holes for vertical mounting, and a skip button to select a desired battery.