The Milwaukee M18 REDLITHIUM XC5.0 Starter Kit delivers exceptional performance and durability for demanding jobsite conditions. This kit includes a 5.0Ah M18 REDLITHIUM XC5.0 Battery Pack and a dual-voltage M18 M12 charger, offering up to 2.5X more runtime, 20% more power, and 2X more recharges than standard lithium-ion batteries. Engineered with advanced pack construction and REDLINK? Intelligence, the battery provides superior protection against overloads, overheating, and over-discharge. It also features individual cell monitoring and a temperature management system to extend battery life and maintain peak performance. Built to withstand harsh environments, the XC5.0 battery runs cooler, resists vibration and impact, and performs reliably in sub-zero temperatures (below 0��F / -18��C). Its internal design routes water away from sensitive electronics, helping prevent damage and extend overall battery life. Ideal for powering any tool in the Milwaukee M18 system, this starter kit is a reliable solution for professionals or DIY enthusiasts who demand long-lasting, high-performance cordless power. Extended Runtime: Up to 2.5X more runtime than standard lithium-ion batteries Increased Power: Delivers 20% more power for demanding applications Longer Battery Life: Provides 2X more recharges for extended use 5.0Ah Capacity: High-capacity battery for longer tool operation REDLINK? Intelligence: Protects against overloads, overheating, and over-discharge Durable Construction: Built to withstand drops, vibration, and harsh jobsite conditions Cold Weather Performance: Operates in extreme temperatures below 0��F / -18��C Water Channeling Design: Routes moisture away from electronics to prevent damage Temperature Management System: Maintains optimal battery temperature for longevity Dual-Voltage Charger Included: Charges both M18 and M12 batteries System Compatibility: Fully compatible with 200+ Milwaukee M18 tools