Experience unmatched runtime and durability with the Milwaukee M12 REDLITHIUM 4.0 Ah battery pack, delivering 2X more runtime than standard lithium-ion batteries. Engineered for extreme job sites, this kit provides 20% more power and operates reliably in temperatures below 0°F.

• Provides up to 2X more runtime compared to standard lithium-ion batteries
• Delivers 20% more power for demanding professional tasks
• Offers 2X more recharges for extended tool life
• Operates cooler and maintains fade-free power in extreme climates below 0°F
• Includes one M12 REDLITHIUM XC 4.0 Ah extended capacity battery pack and one M12 charger