The Milwaukee M18 REDLITHIUM HIGH OUTPUT XC6.0 Battery 2-Pack System Starter Kit. The M18 REDLITHIUM HIGH OUTPUT XC6.0 Battery Pack provides 50% more power and runs 50% cooler vs M18 REDLITHIUM XC battery packs. The optimized combination of size and increased power provides a great solution for the entire range of M18 products. It delivers fade free power and runs substantially cooler through heavy applications, allowing tradesmen to push their cordless tools harder and longer than ever before. The M18 REDLITHIUM HIGH OUTPUT XC6.0 provides increased power in extreme cold weather conditions (below 0°F/minus 18°C) and delivers more work per charge, driving corded replacement on the jobsite. The REDLITHIUM HIGH OUTPUT XC6.0 battery is fully compatible with 200 plus M18 solutions.. <a href=https://www.homedepot.com/c/electronics_recycling_programs style=color:#F96302; target=_blank>Click here for more information on Electronic Recycling Programs</a>. 3-year battery warranty. Provides 60% more run-time than an M18 XC5.0 battery. Compatible with all M18 cordless power tools. Includes: 2 M18 HIGH OUTPUT XC 6.0Ah batteries (48-11-1865) and 1 M18/M12 charger (48-59-1812). Charges all M18 and M12 batteries. 5-year charger warranty