Milwaukee M18B2 2Ah 18V Power Tool Battery, For Use With M18 Series

Sophisticated Electronics: Milwaukee® REDLINK™ Intelligence.
Overload Protection - Prevents user from damaging their cordless power tool investment in abusive situations.
Temperature Management System - Keeps battery in ideal temperature range to provide maximum life.
Individual Cell Monitoring - Ensures optimal charge and discharge for maximum life.
Up to 2X more run time, 20% more power, and Up to 2X more recharges.
Compared with other Lithium-Ion technologies and / or with previous Milwaukee® battery technology. Results depend on voltage, tool, and application.
Integrated weld frame.
Cell Separator.