The Milwaukee Tool 48-11-2425 M12 Red Lithium High Output CP 2.5 Battery Pack is a high-quality power tool accessory designed for cordless tools. This battery pack features a red color and a compact design, with dimensions of 6.5" in length, 4.7" in depth, and 2.0" in height. It weighs 0.52 lbs and has a battery capacity of 2.5 Ah, utilizing Li-Ion battery chemistry. Manufactured by MILWAUKEE TOOL, this battery pack comes with a 1-year manufacturer warranty and is ideal for powering a variety of tools and equipment in the home and workshop.