M12 B4 - Battery M12™, Li-ion 12 V, 4.0 Ah, 4932430065

• Charge time:
- Fast charger M12-18 FC: 40 min
- Standard charger C12 C/ M12-18C/ M12 C4: 80 min / M12-18 AC: 115 min / M12 TC: 347 min 
• 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™-ION protection with REDLINK™ digital overload protection to prevent users from damaging their cordless power tool investment in abusive situations.
• Individual cell monitoring ensures optimal charge and discharge for maximum life.
• 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.