Master Mechanic's 18V 2.2 Amp Smart Class-2 Battery Charger, model 134457, is designed for efficient and convenient charging of your power tools. It can charge one battery at a time, ensuring a streamlined charging process without the clutter of multiple batteries. Crafted for reliability, this charger is compatible with Master Mechanic's 18V battery system, providing a steady charge to keep your cordless tools running at their best. Its compact design makes it ideal for both workshop and on-site use, ensuring your equipment is always ready to tackle the job at hand.