What are the Advantages of a Super Capacitor? 

• Virtually unlimited life cycle - cycles millions of time -10 to 12 year life
• Low impedance
• Charges in seconds
• No danger of overcharge
• Very high rates of charge and discharge
• High cycle efficiency (95% or more)
• Super capacitors and ultra capacitors are relatively expensive in terms of cost per watt

What are the Disadvantages of Ultracapacitor? 

• Linear discharge voltage prevents use of the full energy spectrum. 

• Low energy density - typically holds one-fifth to one-tenth the energy of an electrochemical battery. 

• Cells have low voltages - serial connections are needed to obtain higher voltages. Voltage balancing is required if more than three capacitors are connected in series. 

• High self-discharge - the rate is considerably higher than that of an electrochemical battery. 

• Requires sophisticated electronic control and switching equipment. 

Will Supercapacitors Replace the Battery? 

A supercapacitor by itself cannot totally replace the battery. But, by merging a supercapacitor and a battery together - likea "Hybrid Battery" it will be possible for supercapcitors to replace the battery as we know it today. Supercapacitors needbatteries to store the energy and are basically used as a buffer between the battery and the device. Supercapacitors can be charged and discharged hundreds of thousands of times where a battery cannot do that. Soon the price point will be where most every electronic device will use them. As a hybrid battery. It will be the new super battery.