This Milwaukee M18 Dual Bay Charger is a fast and efficient charger designed to power up two M18 batteries simultaneously. This dual bay charger saves you time and enhances productivity by charging both batteries at once, making it perfect for users with multiple tools in their M18 collection. It features a quick-charge capability to get your batteries ready in no time and advanced technology to protect your batteries from overcharging, overheating, and overloading.