Building on extensive research and development in battery management, Texas Instruments Incorporated (TI) today announced a unique ´gas gauge´ technology that calculates remaining capacity in lithium-based battery packs with up to 99 percent accuracy throughout the entire life of a battery. The new Impedance TrackTM technology allows designers and users of portable medical, industrial appliances and notebooks to prolong battery use and always know the exact amount of potential energy left inside the battery.