Battery powered electric devices continue to grow throughout the world. Systems are also growing more complicated and powerful, thus requiring more power, and posing higher loads on batteries. AVX has created a series of ultra low ESR super-capacitors capable of being used in parallel with a battery. The BestCap can deliver the large pulses necessary in many of today’s battery powered devices. By doing this the designer can select a particular battery for its total power capability rather than for its ability to supply peak currents to the load. Not only can BestCaps be used to improve battery life or the amount of time between battery charges, they can also improve audio quality and ultimately even signal to noise ratios within a system.