Reviews Description: 12 Volt XC Battery Pack Improving run-time, power and speed; the new M12 xc high capacity lithium-ion battery can provide 2x the run-time and increased performance in M12 tools. At only 2-1/2" wide and 3-1/2" long, the battery provides a durable and stable base for tools to stand upright. Rubber over-mold was also added for shock absorption and to protect finished surfaces from marring when tools are placed on them. Features: 12 Volts Lithium-Ion Battery 5 Year Warranty Since its founding in 1924, Milwaukee has focused on a single vision: To produce the best heavy-duty electric power tools and accessories available to the professional user. Today, the Milwaukee name stands for the highest quality, durable and reliable professional tools money can buy.