The M18 REDLITHIUM -ION 5.0Ah Resistant Battery is built with a resistant housing, providing increased protection against exposure to common oils, greases, and solvents found in transportation maintenance and manufacturing environments. The M18 REDLITHIUM -ION 5.0Ah Resistant Battery delivers the same best in class performance as the standard M18 REDLITHIUM -ION 5.0Ah Battery. Each battery pack is durably built for heavy-duty use, runs cooler, and performs in cold weather climates. Built-in REDLINK Intelligence protects the battery from overloads, preventing you from damaging your 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 maximise the battery's life. Our M18 REDLITHIUM -ION 5.0Ah Resistant Battery is fully compatible with all of our 200+ M18 solutions. Features:- Best-in-class construction: Resistant housing designed to provide increased protection against exposure to common oils, greases, and solvents REDLINK intelligence provides optimised performance and overload protection All weather performance delivers fade free power in extreme jobsite conditions. Best in class construction offers long lasting performance and durability. Fuel gauge on board displays remaining battery charge for less down time on the job. Resistant labels to prevent the fuel gauge & side labels from peeling or cracking Includes:- (1) M18 REDLITHIUM -ION 5.0Ah Resistant Battery [M18CB5] (Not Included) Charger