THE MILWAUKEE M12 4.0 AH BATTERY M12 B4

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
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

Specifications:
Charge Time C12 C Charger: 80 Min
Charge Time M12 C4 Charger: 80 Min
Charge Time M12 TC Charger: 347 Min
Charge Time M12 18 AC Charger: 115 Min
Charge Time M12 18 C Charger: 80 Min
Charge Time M12 18 FC Charger: 52 Min
Charge Time M12 18 SC Charger: 52 Min
System: M12
Article Number: 4932430065
Battery Pack Capacity AH: 4.0
Battery Type: Li-Ion
Voltage V: 12
Weight Kg: 0.4