• B3121

  • Weight
    21lbs / 9.5kg
  • Length
    6.6" / 168mm
  • Width
    5.2" / 132mm
  • Height
    6.8" / 173mm
  • PCA
    1380
  • Ah
    31
  • Right Side Positive

  • MSRP $241.49

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B3121 Features

Cubic Horsepower
At under 22 pounds, the B3121 is our lightest do eveything battery yet. Using our Advanced AGM racing technology we have put a lot of power into a very small package. With 1380 pulse cranking amps this has enough power to start more than any other battery in its weight class. This is the perfect model for those who want to shave half the weight of a stanard Group 34 battery and still have enough power to crank over a V8 engine. Used in everything from large Harley Davidsons to Corvettes & Vipers. (Note: while high in cranking amps, make sure battery has enough capacity for the vehicle intended to be used in)

Direct replacement for:
YIX30L, YB30L-B, ETX30L, HD 66010-97

Common Upgrade for:
PC925 (same size, 5 pounds lighter, 50% more cranking power)

Lightweight AGM Features View More

Highest Cranking Power Lead Battery Available. All Season Reliability. Stainless Steel Terminals. Environmentally Sourced Recycled Materials.

  • Physical Specifications
  • BCI Group
    All sizes
  • Weight
    21lbs / 9.5kg
  • Length
    6.6" / 168mm
  • Width
    5.2" / 132mm
  • Height
    6.8" / 173mm
  • Polarity
    Right Side Positive
  • Performance
  • Voltage
    12
  • Full Charge Voltage
    13.2
  • Pulse Cranking Amps (PCA)
    1380
  • Cranking Amps (CA)
    742
  • Amp Hour (AH)
    31
  • Cold Cranking Amps (CA)
    550
  • Reserve Capacity (RC)
    1 hr 15 mins
  • Life Cycle @ 10% DOD
    3100
  • Usage
    • Advanced AGM
    • Motorsports
    • Consumer Auto
    • Race Auto
    • Motorcycle
    • Trucks
    • Marine
    • Aircraft

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