Quickly charges all M12? batteries. Power up your M12? RED LITHIUM? and M12? Lithium-Ion batteries in less than an hour with the M12? Lithium-Ion Charger. It communicates directly with the battery pack to manage charges and features an easy-to-load design. The charger?s slim profile requires little bench-top room, while the pass-through plug conserves valuable outlet space. Monitor battery charges for all of your M12? cordless tools with the onboard indicator light.