Our M18™ REDLITHIUM™ HIGH OUTPUT™ XC8 Battery Pack provides you with 50% more power and runs 50% cooler vs our other M18™ REDLITHIUM™ XC battery packs. The optimized combination of smaller size and increased power of the 18 V battery provides you with a great solution for the entire range of M18™ products. The Lithium-Ion battery delivers fade free power and runs substantially cooler through heavy applications, allowing you to push your cordless power tools throughout a wide application range. The M18™ XC8 Battery provides you with increased power in extreme cold weather conditions (below 0F 18 °C) and delivers more work per charge, driving corded replacement. The REDLITHIUM™ HIGH OUTPUT™ XC8.0 extended capacity battery is fully compatible with all 175 Milwaukee® M18™ solutions. Milwaukee® Battery, Bare Tool/Kit: Bare Tool, XC™ Lithium-Ion Battery, 8 Ah Battery, 18 V Charge, 60 min Charging, For Use With: M18™ Cordless Tools, 5.46 in L x 3.3 in W x 3.22 in H Dimensions