Milwaukee M18B5 M18 5.0Ah Red Lithium-Ion Battery

Delivers up to 2.5x 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 damagingtheir 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
Extreme hot and cold operating temperatures down to -20°C extend run time & life
On-board battery fuel gauge helps the user tomaximize his battery run-time efficiency