Lithium-Ion (Li-ion) batteries are compact, lightweight and pack more energy in a single cell than all other batteries. They are environmentally friendly, provide longer run-times, perform well in extreme weather and can last over 1000 cycles.
From the Manufacturer
The Milwaukee 2645-20 M18 cordless jig saw is Milwaukee's first jig saw powered by lithium-ion. The 2645-20 delivers accuracy, versatility and ease of use. The 5-Position orbital setting offers more cutting versatility than any other cordless jig saw on the market. This allows the user to select the type of cut or speed specific to their application. For ease of use, the tool-free shoe bevel allows for quick and accurate shoe adjustments, while the quick-lok blade clamp provides fast and easy blade change. This is the tool only - Does not include battery, charger or case.