A single M18 Red Lithium XC-4.0 cordless tool battery in black and red, photographed from a top-down angle on a white background.
A close-up of a RED LITHIUM battery pack, showing a black body with a red side button and illuminated red battery indicator lights on the front face.
A red and black RED LITHIUM cordless battery pack photographed from the back, showing the battery terminals and a level indicator.
A single M18 Red Lithium XC-4.0 cordless tool battery in black and red, photographed from a top-down angle on a white background.
A close-up of a RED LITHIUM battery pack, showing a black body with a red side button and illuminated red battery indicator lights on the front face.
A red and black RED LITHIUM cordless battery pack photographed from the back, showing the battery terminals and a level indicator.

Milwaukee M18 REDLITHIUM XC 4.0Ah Battery Pack (48-11-1840 / M18B4)

Regular price $89.00
Sale price $89.00 Regular price $129.00
Unit price
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A single M18 Red Lithium XC-4.0 cordless tool battery in black and red, photographed from a top-down angle on a white background.

Milwaukee M18 REDLITHIUM XC 4.0Ah Battery Pack (48-11-1840 / M18B4)

Regular price $89.00
Sale price $89.00 Regular price $129.00
Unit price
Product description
Shipping & Return

Power your Milwaukee M18 cordless tools with the Milwaukee M18 REDLITHIUM™ XC 4.0Ah Extended Capacity Battery Pack (48-11-1840 / M18B4). Engineered for demanding jobsite conditions, this lithium-ion battery delivers up to 2X more run-time, 20% more power, and 2X more recharges than standard lithium-ion batteries.

Key Features:

  • REDLINK™ Intelligence: Provides optimized performance and overload protection using total system communication between tool, battery, and charger.
  • Best-in-Class Construction: Long-lasting performance and durability featuring an onboard fuel gauge to display remaining run-time.
  • All-Weather Performance: Delivers fade-free power in extreme jobsite conditions.
  • Versatile Compatibility: Powers over 250+ Milwaukee® M18™ cordless power tools.

Specifications:

  • Brand: Milwaukee
  • Model: M18B4
  • Part / MPN: 48-11-1840
  • Voltage: 18V
  • Capacity: 4.0 Ah
  • Battery Chemistry: Lithium-Ion (Li-Ion)

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We want you to be 100% satisfied with your purchase. Items can be returned or exchanged within 30 days of delivery.

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