Milwaukee M18 18-Volt 4.0 Ah Lithium-ion Battery

Get longer battery life for your Milwaukee power tool with a replacement Milwaukee M18 18-volt lithium-ion battery.

This Milwaukee M18 battery replaces the original battery in many 18 volt lithium-ion Milwaukee power tools. See below for the list of compatible power tool models and battery part numbers. Don't see yours? Go to our Milwaukee power tool battery page for the complete list.

We use the highest quality li-ion batteries that charge faster and last longer than cheaper, lower quality batteries. Lower quality batteries wear out in as little as 6 months. Our batteries can last up to 5 years.

Compatible with these Milwaukee Battery Part Numbers