The M12 REDLITHIUM 2.0 Compact Battery Pack offers 2.0 amp-hours of run time. The battery runs cooler and performs in climates below 0°F and its compact design fits in tight work spaces and reduces user fatigue. Milwaukee’s REDLINK Intelligence gives the battery overload protection to prevent you from damaging your cordless power tools. While discharge protection prevents cell damage. The temperature management system and individual cell monitoring help maximize battery life. 48112420 48-11-2420