The M18™ NRG pack includes the M18 B2 2.0 Ah battery and the M12-18 C multi-voltage charger, providing reliable power for MILWAUKEE® M18™ and M12™ tools. The 2.0 Ah battery delivers consistent performance for light to medium tasks, while the multi-voltage charger allows efficient charging across both M12™ and M18™ battery systems. This pack is ideal for users seeking a versatile and convenient power solution for their cordless tools.