M12B4 12V 4.0Ah Red Lithium-Ion Battery


Milwaukee M12B4 12V Red Lithium-Ion Battery Pack

The Milwaukee M12 B REDLITHIUM-ION™ Battery Packs are fitted with sophisticated electronics (REDLINK™ Intelligence) and overload protection which prevents the user from damaging their cordless power tool investment in abusive situations. It has a temperature Management System which keeps the battery in ideal temperature range to provide maximum life.

With individual Cell Monitoring which ensures optimal charge and discharge for maximum life and discharge protection which prevents cell damage from over-discharge. They offer up to twice the run time, 20% more power and up to twice the recharges compared to other Lithium-Ion technologies and or with previous Milwaukee® battery technology. Results dependant on voltage, tool and application.

  • REDLINK Intelligence provides optimised performance and overload protection using total system communication between tool, battery and charger.

  • Fuel gauge onboard: Displays remaining runtime for less downtime on the job.

  • Versatility: Powers more than 90 MILWAUKEE M12 cordless power tools.

  • Best-in-class construction: offers long lasting performance and durability.


  • Battery Capacity: 4.0Ah

  • Battery Type: Lithium-ion

  • Battery Voltage: 12 volt