A unique electronic unit with package recognition technology allows the tool to recognize when an XR FLEXVOLT battery is connected and unlock even more power. The DCS573 delivers up to 77% more power when paired with a DCB546 XR FLEXVOLT 6Ah battery compared to a DCB184 18V XR 5Ah battery. With a cutting depth of 67 mm, excellent dust management features, tool-free depth adjustment, and an electronic safety brake, this durable circular saw can handle tough applications such as ripping and bevel cuts and cutting hardwood.