Braille B3121


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Lightweight Advanced AGM Racing Battery


Volts: 12
Length (mm): 168
Width (mm): 132
Height (mm): 173
Weight (kg): 9.5
Application: starting
Warranty: 2 Years

Additional Information

At under 10kg, the B3121 is Brailles lightest do eveything battery yet. Using our Advanced AGM racing technology Braille 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.


  • Voltage: 12 Volts
  • Full Charge Voltage:13.8 Volts
  • Short Circuit Current (Max Amps):3000 est.
  • Pulse Cranking Amps (PCA): 1380
  • Cranking Amps (CA):742
  • Cold Cranking Amps (CCA): 440
  • Amp Hour (AH) - Electrical Capacity: 31 amp hr
  • Reserve Capacity (RC): 1hr 15mins
  • Internal Resistance:4.0 milliohms (.004 ohms)
  • Life Cycle @ 10% DOD: 3100 cycles est.

Download specification sheet: Braille.B3121.pdf

Manufacturer Information