The M18™ REDLITHIUM™ HIGH OUTPUT™ XC5 Battery provides 50% more power compared to the M18™ REDLITHIUM™ 5.0Ah Battery. This battery delivers a balance of power, runtime, & size that is fully compatible with 250+ M18™ solutions. The M18™ REDLITHIUM™ HIGH OUTPUT™ XC5 Battery has an upgraded fuel gauge & button to provide an improved feel & ease of access. Built-in REDLINK™ Intelligence protects the battery from overload protection using total system communication between tool, battery, and charger while optimising & enhancing tool performance. The redesigned battery construction, with increased durability, delivers long-lasting performance & protection on the jobsite. This protection routes water away from the electronics and out of the battery, extending the battery's runtime and life by minimising heat, and preventing battery failures from vibration or drops. Upgrade to the M18™ REDLITHIUM™ HIGH OUTPUT™ XC5 Battery to instantly upgrade power for your Milwaukee M18™ cordless tools.