PowerStor / Eaton XL60 Series is a large format, high capacity supercapacitor. The 2.7V, 3000F cells combine electrochemical double layer capacitor (EDLC) construction with new, high-performance materials. These factors allow the series to provide high energy for backup applications and high power for cycling applications and engine starting. Operating temperature is range is -40ºC to 65ºC (up to 85ºC with voltage derating to 2.3V). The XL60 supercapacitors feature outstanding aging characteristics: <20% capacitance change after 1500 hours at 2.7V, 65ºC.