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  • MAX Output Batteries provide up to 2X more power compared to the 1.5 Ah lithium-ion battery (AC870015)
  • Up to 3X more runtime compared to the 1.5 Ah lithium-ion battery (AC870015)
  • Advanced electronics and innovative cooling technology for extended battery life
  • Compact size reduces user fatigue
  • Fuel gauge displays power level on the job
  • 100% Compatible: Works with all RIDGID 18V Batteries, Tools, and Chargers
  • Includes: (1) AC840040PN 18V Lithium-Ion MAX Output 4.0 Ah Battery (2-Pack) and operator’s manual
  • Charger sold separately


  • Brand: Ridgid
  • Battery Amp Hours: 4.0
  • Battery Power Type: Lithium Ion
  • Charge Time (min.): 60
  • Color Family: Black
  • Number Of Total Batteries Included: 2
  • Product Dimensions (LxWxH): 5 x 3 x 4 inches


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