MILWAUKEE'S M18 48-11-1815 Compact 18V 1.5 Amp Hour Red Lithium Ion Battery w/ Onboard Fuel Gauge

You need Milwaukee batteries to power your Milwaukee M18 power tools. For ease of control, intelligent design, and maximum power all-in-one, you should go with the 48-11-1815. It has what you need for a job well done. It’s light weight, for one, so you’ll be able to handle your tools with minimal joint strain. Besides that, its compact size lets you maneuver into tight spaces with drills or saws that you might not be able to otherwise. Outside of its size benefits, its internal components allow for your tools to run better without overheating. The Redlink system is an onboard chip that communicates with a chip planted in Redlink-activated tools, like M18 drills, that lets the battery know when the motor is close to overheating. Once this occurs, the battery will reduce the power sent to the drill to prevent damage that will affect the quality of your work. This battery is tough on top of being smart. It is rated to function at temperatures below 0 degrees Fahrenheit and above 100 degrees Fahrenheit (not to exceed 120 F). Power your tools the right way with Milwaukee.