B3121C Features Carbon Fiber Case
Higher engine temps equal lower battery performance. Braille's exclusive Carbon Fiber Case protects the batteries internals from high temps and provides the longest service life. Don't settle for a metal case that conducts heat, be cool.
Carbon AGM Features
Patent Pending Carbon Case Design Made for Extreme Temperatures and Vibration. More Reliability and Performance in High Temperatures. Exclusive Appearance and Design. Hand Selected Premium Products for the Highest Performing Advanced AGM Product.