This is not a misprint!These specially engineered capacitors are actually a high-tech energy storage device - not the standard capacitors which they look identical to. Using a new combination manufacturing process where nano suface structured carbon is combined with an organic electrolytes, this technique enables these capacitors to store 100 times the energy of a standard electrolytic capacitor.The main applications are energy storange at a circuit board level replacing the bulkier secondary batteries which are currently used. Essentially anywhere high energy storage is needed. Features: - High density of energy- Long lifetime (10 years)- High cycle life (over 500,000 cycles) Capacitor type : Super cap Polarised Capacitor : true Item capacitance : 22-55F DC Voltage : 2.5V Height : 25mm, 40mm (22F, 55F) Diameter : 16mm, 18mm (22F, 55F) Component Type : Electrolytic Capacitor Pack Quantity : 1 pc Pitch : 7.5mm Passive mount type : Through Hole Passive connector type : Solder Legs Component package : Radial Passive number of legs : 2 count Passive marking code : Printed