Custom Racing Battery Packs We build some of the world's most powerful battery packs for use in electric car and motorcycle racing, delivering hundreds of volts and thousands of amps with full BMS vehicle integration UltimateRace™ 12v Starting Battery UltimateRace™ 12v Starting Battery coming Q1 2012! This high performance ultra lightweight battery is based on our BluFlex™ BMS and next generation lithium ion cells. Detailed Features and Specifications BluFlex™ BMS Standalone BMS units are available for electric conversion OEM's and enthusiasts seeking a flexible and reliable way to dramatically improves lithium pack cycle life