The Milwaukee® M18™ and M12™ Rapid-Charge Station helps you to keep your job site running smoothly. It has room for three M18 REDLITHIUM™ batteries on one side and three M12 Redlithium batteries on the other. This Milwaukee M18 and M12 rapid-charge station provides energy up to four times faster than previous models so you can keep up with your heavy-duty tools' power consumption. It utilizes REDLINK™ intelligence to manage voltage and temperature so you can charge safely and efficiently. The Milwaukee jobsite rapid-charge station has a pass through plug so you can keep your outlet free for other devices at the same time that you're using the charger. A hanging hole gives you the option to set it up vertically along the wall for greater space efficiency.