Ultracapacitor(s), or supercapacitor(s) as they are also known, are an energy storage technology that offers high power density, almost instant recharging and very long lifetimes. they are capable of storing and discharging energy very quickly and effectively, they deliver quick bursts of energy during peak power. AEP offers different Ultracapacitor brands, both with different Ultracapacitor technologies. 1. Maxwell® Ultracapacitors 2. Tecate group Ultracapacitors, Powerburst® 3. LSMTRON Ultracapacitors.