Milwaukee M12 12-Volt Lithium-Ion XC Battery Pack 4.0 Ah and Charger Starter Kit
Battery Amp Hours: 4 AhProvides up to 2X more run time20% more power than standard lithium ion batteryREDLITHIUM 4.0 battery operates cooler and performs in climates below 0° with fade free power2X more recharges than standard lithium ion batteryIncludes: M12 charger (48-59-2401), M12 REDLITHIUM XC4.0 extended capacity battery pack (48-11-2440)