What is the service life and cycle life of ESMA supercapacitor modules?
Cycle tests of ESMA capacitor modules using a hybrid vehicle power profile have been preformed uninterruptedly for over two years. At the beginning of 2002, more than 500,000 charge/discharge cycles had been completed with no noticeable decrease in performance. This testing continues. Delco Remy (North American manufacturer of starters and alternators for heavy-duty trucks) tested ESMA capacitors for their engine starting performance. They successfully completed 157,000 consecutive starts of a heavy-duty truck engine. At the December 2000 SAE conference, Delco Remy and Freightliner (major North American manufacturer of heavy-duty trucks) presented a joint paper containing ESMA capacitor test results. This paper “Paper 2000-01-3495: Electrochemical Capacitors for Truck Applications” can be obtained from www.sae.org. ESMA capacitors have been installed in several types of trucks for more than four years in Russia and over two years in the US (with major truck fleets) and used to insure s
