Supercapacitors / Ultracapacitors 2.7V 3000F Laser terminal ………… This capacitor is a MAXWELL 3000F It was custom label for Sparky.—————– Basic specs: Capacitance 3000 farads DC Equivalent Series Resistance (ESR) 0.29 milliohm AC Equivalent Series Resistance (ESR) 0.24 milliohm Leakage Current 5.2 mA Operating Temperature Range -40°C to +65°C Stored energy 10944 joules (3.04 WH) Max Power 3020 Watts Weight .89 lb