REDLINK Intelligence: Provides optimized performance and overload protection using total system communication between tool, battery and charger Best-in-class construction: Offers long-lasting performance and durability Fuel gauge onboard: Displays remaining runtime for less downtime on the job All-weather performance: Delivers fade-free power in extreme jobsite conditions Versatility: Powers more than 40 Milwaukee M18 cordless power tools. Item is shipped in bulk packaging.