DescriptionMakita Outdoor Adventure 18V LXT 4.0Ah Battery Lithium-IonGet outside with Outdoor Adventure， a new series of cordless products that operate within the LXT? system. Outdoor Adventure? products feature advanced technology， delivering maximum performance and efficiency for the outdoors. Makita offers hundreds of products within the 18V LXT? system so you can create your own adventure.The Outdoor Adventure? 18V LXT? Lithium-Ion 4.0Ah Battery charges faster and works longer than standard lithium-ion batteries， giving the Outdoor Adventure? tools and equipment unmatched performance. The Outdoor Adventure? 4.0 Ah battery combines more run time (35% more run time per charge than the Makita BL1830 battery) with a category-leading charge time of only 40 minutes， so it spends more time working and less time sitting on the charger.The Outdoor Adventure? 18V LXT? 4.0Ah battery (BL1840) is compatible only with Star Protection tools， indicated by the Star Symbol? and/or Yellow Battery Receiver under the tool.Outdoor Adventure? 18V Lithium-Ion batteries resist self-discharge so they’re ready for use even after long periods of storage. The Makita Rapid Optimum Charger (sold separately) is a smart-charging system that communicates with the battery during the charging process to monitor current， voltage， and temperature. This advanced charging technology helps optimize battery life and deliver a faster charge. In addition， the Charger has a built-in fan to cool the battery for faster and more efficient charging， even in hot weather conditions.For improved tool performance and extended battery life， Makita created STAR Protection Computer Controls?. STAR Protection is communication technology that allows the tool and battery to exchange data in real time and monitor conditions during use to protect against overloading， over-discharging， and overheating. Makita， the innovation leader in cordless tool technology， has the world’s cordless tool line-up powered by an 18V lithium-ion slide-style battery.FeaturesIntegrated L.E.D. battery charge level indicator allows user to monitor battery chargeProvides up to 35% more run time per charge compared to BL1830Reaches full charge in 40 minutes or lessCompatible only with Star Protection tools， indicated by the Star Symbol™ and/or Yellow Battery Receiver under the toolBattery delivers consistent power and run time in extreme temperatures， even in winter (-4°F/-20°C)Equipped with Star Protection Computer Controls™ to protect against overloading， over-discharging and over-heatingImpact-resistant outer case and shock-absorbing inner-liner are engineered to protect the batterySixteen contact terminals maintain a constant connection with the tool to help prevent power loss or fluctuation， even during high-vibration applicationsBattery resists self-discharge and remains ready for use even after long periods of storageSpecificationsBrand NameMakitaAmp-hour4.0Assembled Weight (lbs)1.5California Proposition 65 Warning RequiredYesCompatibility18V LXT ToolsCountry of OriginSingaporeInternal Supplier Part #ADBL1840BManufacturer Warranty3-year limited warrantyPackage ContentsOutdoor Adventure 18V LXT 4.0Ah Battery Lithium-IonPackage Depth3.125Package Height3.313Package Weight1.5RechargeableYesUPC088381796149From Manufacturer