Improving run-time, power and speed; the M12โข XC High Capacity REDLITHIUMโข Battery will provide 2X the run-time and increased performance as compared to the M12โข Compact REDLITHIUMโข battery pack in all M12โข tools. Milwaukee REDLITHIUMโข batteries are the next generation in Lithium Ion technology. Compatible with all products in the M12 Cordless tool system, REDLITHIUMโข battery packs will provide unmatched runtime, performance and durability for the professional tradesman.