The MILWAUKEE M18 REDLITHIUM XC3.0 Battery delivers up to 2X more runtime, 20% more power and 2X more recharges than standard lithium-ion batteries. The lithium-ion battery pack features superior pack construction, electronics, and performance providing users more work per charge and more work over pack life than any battery on the market. The rechargeable battery also delivers users with 3.0 amp-hours of runtime. The pack is durably built for heavy-duty use, runs cooler, and performs in climates below 0degreeF/-18degreeC. Built-in REDLINK Intelligence protects the battery from overloads, preventing users from damaging their cordless power tools in heavy-duty situations, while the discharge protection prevents cell damage. An integrated temperature management system and individual cell monitoring help to maximize battery life. Switch to Milwaukee's REDLITHIUM XC3.0 Battery Pack to instantly upgrade the runtime and durability of Milwaukee M18 cordless tools.