Milwaukee USB Heated Base Layer

  • $155.00

The REDLITHIUM™ USB Heated Base Layer is powered by REDLITHIUM™ USB Battery Technology with carbon fibre heating elements to create and distribute heat to the chest and back. A one-touch LED controller allows you to select from two heat settings, delivering ideal heat for any environment. The Quick-Heat function allows you to feel heat 3X faster in the chest and upper back heating zones. Combining a double-lined polyester body and fleece-lined arms, the REDLITHIUM™ USB Heated Base Layer provides a versatile layering piece for total body warmth. This battery heated shirt features raglan sleeves and seamless shoulders for an improved range of motion and comfort while working.



  • 1 x REDLITHIUM USB Heated Base Layer Black
  • 1 x REDLITHIUM USB 3.0AH Battery [L4B3]
  • 1 x USB Charger/Controller
  • 1 x Heavy Duty Cord & Adaptor


  • Midweight base layer fabric construction keeps body warm and dry
  • Chest and upper back heat zones
  • Fleece lined sleeves provides total body warmth
  • Raglan sleeves and seamless shoulders for mobility and comfort
  • Up to 3 hours runtime when used with REDLITHIUM™ USB 3.0AH Battery



  • Size: Small
  • Platform: REDLITHIUM
  • USB Voltage: 4V
  • Heat Zones:
    • Chest
    • Upper Back
  • Modes:
    • High
    • Low
  • Runtime (hours):
    • 1.5 (High)
    • 3 (Low) - L4B3
  • Fabric: Midweight