The BZ12GA124ZAB is an ultra-low ESR high power Pulse Supercapacitor, rapidly become recognized, not only as an excellent compromise between electronic or dielectric capacitors such as ceramic, tantalum, film and aluminium electrolytic and batteries, but also as a valuable technology for providing an unique combination of characteristics, particularly very high energy, power and capacitance densities. The high ESR in the tens of Ohms range and high capacitance loss when required to supply very short duration current pulses. BestCap® successfully addresses both of these limitations. The capacitance loss in the millisecond region is caused by the charge transfer (that is establishment of capacitance) being carried out primarily by relatively slow moving ions in double layer capacitors.