The MILWAUKEE M18 REDLITHIUM High Output XC 8.0 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. This battery delivers fade-free power and runs substantially cooler through heavy applications, allowing users to push their cordless tools harder and longer than ever before. This battery provides increased power in extreme cold weather conditions (below -18°C/0°F) and delivers more work per charge, driving corded replacement on the jobsite.