M18 portable transfer pumps: faster water transfers, faster service calls. The tool's flexible impeller and powerful liquid transfer pump moves water at up to 480 gal/hr, generates up to 18 ft of lift and produces up to 75 ft of head height. As a part of the MILWAUKEE M18 System of tools, the fluid transfer pump is powered by REDLITHIUM battery packs (not included), which deliver up to 240 gal moved per charge on a XC5 battery pack. Onboard REDLINK Intelligence recognizes when the tool stops moving water and automatically shuts itself off to avoid dry pumping.