M12™ REDLITHIUM™ XC4.0 Starter Kit

What it is:

The 48-59-2440 is a Milwaukee M12™ REDLITHIUM™ CP4.0 battery + charger starter kit. It is part of the 12V M12 cordless system, designed for compact power tools.

Key specs:

• System: M12 (12V platform)
• Battery type: REDLITHIUM™ CP4.0
• Capacity: 4.0Ah
• Included charger: M12 charger (charges all M12 batteries)
• Voltage: 12V lithium-ion system
• Compatibility: All Milwaukee M12 tools

(Kit listings confirm battery + charger configuration and compatibility)

Key features:

• More runtime than CP2.0 batteries (higher capacity pack)
• Compact but extended power: balances size and runtime
• REDLITHIUM™ technology: improved durability and consistent output
• Fuel gauge indicator: shows remaining charge
• Fast charging capability: M12 charger supports quick recharge cycles (~30–60 min depending on pack)
• Extreme temperature performance: works in cold jobsite conditions
• All M12 tool compatibility: drills, impacts, lights, ratchets, etc.