The M18™ six pack sequential charger offers a compact design, integrated hang holes for vertical mounting and a pass through plug to conserve outlet space. The new unit will charge M18™ compact batteries in 30 min and extended capacity (XC) batteries in 60 min. with this new six pack charger, users can reduce the amount of time spent changing out batteries, increasing productivity on the jobsite. Milwaukee® M18™ 48-59-1806 Sequential Charger, Use with M18™ Battery, Li-Ion Battery, 0.5 to 1 hr Charging, 6 Batteries