Noun
English Wikipedia has an article on:supercapacitorWikipedia
supercapacitor (plural supercapacitors)
Any of several types of capacitor that have an unusually high capacitance
The RTC is ultra-low power (running at only about 22nA in its lowest power setting) so it can use a supercapacitor for backup power instead of a normal battery. Source: Internet
MegaRAID flash cache protection MegaRAID flash cache protection uses NAND flash memory, which is powered by a CacheVault Power Module supercapacitor, to protect data that is stored in the controller cache. Source: Internet