Lithium-ion battery powers Milwaukee M18 cordless tools. Provides up to 2X more run-time, 20\% more power, and twice the recharges compared to a standard lithium-ion battery. Features REDLINK intelligence overload protection to prevent damage to power tool in heavy-duty situations, and discharge protection prevents cell damage. Temperature management systemand individual cell monitoring help maximize battery life. Operates cooler in extreme job site conditions and performs in climates below 0 degrees Fahrenheit with fade free power. Displays remaining runtime for less downtime on the job.