REDLINK Intelligence: provides optimized performance and overload protection using total system communication between tool, battery and charger offers long-lasting performance and durability FUEL gauge on board: displays remaining runtime for less downtime on the job All-weather performance: delivers fade free power in extreme jobsite conditions Versatility: powers more than 100 Milwaukee M18 cordless power tools Provides optimized performance and overload protection using total system communication between tool, battery and charger Offers long-lasting performance and durability