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FAQs

What are the advantages of M18™ REDLITHIUM™ Batteries?

  • REDLITHIUM™ batteries are the leading batteries for the professional trades.  There are three tiers of M18™ REDLITHIUM™ batteries.  REDLITHIUM™ FORGE™, REDLITHIUM™ HIGH OUTPUT™, and standard REDLITHIUM™. REDLITHIUM™ FORGE™ batteries provide the MOST POWER, FASTEST CHARGING, and LONGEST LIFE.  All M18™ batteries fit M18™ tools.

What is the difference between CP, XC and HD?

  • "CP" batteries are most compact, for use in applications that require the lightest weight and smallest size ergonomically.  "XC" batteries provide a balance of size/weight, power, and runtime.  With the largest overall size, "HD" batteries provide high power and longest runtime for long duration and high demand applications.

Can I use my M18™ battery on any Milwaukee tool?

  • All M18™ Batteries are compatible with M18™ tools & chargers.

Can I use my M12™ battery on any Milwaukee Tool?

  • All M12™ batteries are compatible with M12™ tools & chargers.

What warranty comes with Milwaukee M18™ batteries? 

What are the recommended safety precautions for M18™ REDLITHIUM™ batteries?

How long does it take to fully charge an M18™ battery using a Milwaukee M18™ charger? 

  • Charge experience will be dependent on the battery pack type, charger type, and surrounding environment conditions.  M18™ Super Charger provides the fastest charging experience with all M18™ batteries.  Based on testing conducted by Milwaukee Tool at room temperature using M18™ Super Charger, M18™ REDLITHIUM™ FORGE™ XC6.0 battery fully charges in 25 mins (15 mins to 80% capacity), M18 REDLITHIUM™ HIGH OUTPUT™ HD12.0 battery fully charges in 60 mins, M18 REDLITHIUM™ HIGH OUTPUT™ XC8.0 charges in 45 mins, and M18™ REDLITHIUM™ XC5.0 charges in 60 mins.  Actual results may vary.  For more charge durations, visit Charging Solutions Guide

How can I tell my M18™ battery state of charge (SOC)? 

  • You can reference the onboard fuel gauge on the M18™ battery to determine state of charge. 

Can M18™ batteries be charged with a third party charger?

  • Authentic M18™ batteries must be charged on Milwaukee M18™ chargers. Users should not use third party batteries or chargers.