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.
No Spill, No Corrosion, No Maintenance
Technically registered as a "sealed valve regulated" design, this patented technology completely eliminates acid spills and corrosion on terminals. This design is environmentally safe does not need filling and maintenance. Air shipping approved.
Exclusive Dual Terminal Design
A Braille Battery exclusive! This feature allows the battery to be mounted in a variety of positions. It is designed to accept racing, powersports and automotive terminals vertically and horizontally.
Stainless Steel Terminals
Stop loose battery connections with our robust stainless steel threads. These heli-coil design threads allow higher bolt torque and help keep your battery connected even in high vibration environments.
Exclusive Brass Auto Terminals
Included with every Braille Auto Battery are patent pending high quality brass SAE terminals. Designed to distribute the electrical load into and out of the battery. Designed for high amperage, high stress use of racing and audio competitions.
Green from Start to Finish
We employ a manufacturing process with the highest concern for the environment and quality. Recycled lead, plastic and stainless steel ensure we'll have a future to race towards.
Solid Top Lead Connectors
Shaken, not stirred - From 6 "G" NHRA drag launches, to 4 G cornering loads in Indy this design holds the internals firmly in place.
Performance Certified - Fully Charged
Every Braille Battery is individually tested and certified before shipping, eliminating DOA batteries. Fully charged and ready to install at time of shipping.
Model Number: Braille SKU #B3121
Model Name: 21 lb Extreme Use Battery
BCI Group: Usable for all Group Sizes
Length: 6.6" (168mm)
Width: 5.2" (132mm)
Height (without posts): 6.8" (173mm)
Minimum Weight: 21lbs (9.5kg)
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): 550
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.