M12™ 4.0 Ah battery

M12 B4

• Individual cell monitoring ensures optimal charge and discharge for maximum life
• Delivers up to 2x more run time, up to 20% more power and up to 2x more battery life compared with other Lithium-Ion technologies and/or with previous MILWAUKEE® battery technology (Results depend on tool and application)
• REDLITHIUM™ protection with REDLINK™ digital overload protection to prevent users from damaging their cordless power tool investment in abusive situations
• Integrated welded frame battery construction with shock responsive separators preventing pack failure from excessive vibrations or drops
• Can be used in extreme temperatures down to -20 °C without compromising on runtime and battery life
• Discharge protection prevents cell damage from over-discharge