With 2.0Ah batteries instead of the 5.0's.  batteries tested over 20 volts off the charger.

The Milwaukee M18 FUEL 18V 2-Tool Hammer Drill / Impact Driver Combo Kit 2997-22 is a versatile and powerful set of power tools that includes a hammer drill and impact driver, both powered by lithium-ion batteries with a voltage of 18V. The brushless motor design provides efficient performance, while the red color and Milwaukee branding add a touch of style to your tool collection. This combo kit is ideal for various home and workshop projects, offering convenience and reliability with its 5 Ah battery technology.