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 0F / -18C) and delivers more work per charge, driving corded replacement on the jobsite. The REDLITHIUM™ HIGH OUTPUT™ XC6.0 battery is fully compatible with 150+ M18™ solutions. Milwaukee® M18™ HIGH OUTPUT™ Cordless Battery Pack, Li-Ion Battery, 6 Ah Battery, 18 VDC Charge, 6 Ah Charge Current, 60 min Charging, 5.46 in L x 3.3 in W x 3.22 in H Dimensions