The Milwaukee M18 REDLITHIUM HIGH OUTPUT XC8.0 Battery Pack provides 50% more power and runs 50% cooler versus M18 REDLITHIUM XC battery packs. The optimized combination of smaller size and increased power provides a great solution. The M18 XC8.0 battery provides increased power in extreme-cold weather conditions (below 0°F/minus 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 250+ Milwaukee M18 solutions. REDLINK intelligence: the battery circuitry provides optimized performance and overload protection using total system communication between tool, battery and charger Best-in-class construction: offers long-lasting performance and the best protection against jobsite, weather and environmental conditions Fuel gauge onboard: displays remaining run-time Versatility: powers all 200 plus M18 cordless solutions Compatible with all M18 tools 3-year battery warranty Includes: 4 M18 REDLITHIUM High Output XC 8.0 battery pack