Skip to content


Original price £51.54 - Original price £51.54
Original price
£51.54 - £51.54
Current price £51.54

Milwaukee M18 B4 M18 4.0Ah Li Ion Battery

The Milwaukee M18B4 4.0Ah Red Lithium-ion battery has up to 2x more run time than standard batteries. Delivers up to 2X more runtime, 20 percent more power and 2X more recharges than standard lithium-ion batteries. The M18 Redlithium XC 4.0 Extended Capacity Battery Pack features superior pack construction, electronics and performance to deliver more work per charge and more work over pack life than any battery on the market. It offers 4.0 amp-hours of runtime.

  • 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 percent 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, optimised and application
  • Integrated weld frame
  • Cell Separator
  • Redlink Intelligence: optimised performance and overload protection using total system communication between tool, battery and charger
  • Best-in-class construction: Offers long-lasting performance and durability
  • All-weather performance: Delivers fade-free power in extreme job site conditions
  • Versatility: Powers more than 40 Milwaukee M18 cordless power tools
  • Most durable pack on the market
  • Battery Capacity: 4.0Ah
  • Battery Type: Red Lithium-ion
  • Battery Voltage: 18 volt
  • Battery Fuel Gauge: Yes
  • Weight: 0.43 Kg


  •  1 x M18 4.0Ah M18 Fuel Red Lithium Ion Battery