Battery Milwaukee M18 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-ION™ protection with Milwaukee® 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.
-Durable metal frame battery construction with shock responsive separators preventing pack failure from excessive vibrations or drops.
-Water protection routes water away from the electronics & out of the battery pack.
-Can be used in extreme temperatures down to -20 °C without compromising on runtime and battery life.
-On-board battery fuel gauge helps the user to maximise his battery run-time efficiency.