Improving runtime, power and speed, the M12™ XC High Capacity REDLITHIUM™ Battery will provide 2X the runtime and increased performance as compared to the M12™ Compact REDLITHIUM™ battery pack in all M12™ tools. Milwaukee® REDLITHIUM™ batteries are the next generation in li-ion technology. Compatible with all products in the M12 Cordless tool system, REDLITHIUM™ battery packs will provide unmatched runtime, performance and durability for the professional tradesman.