Super Capacitor Cell 4.2volt 21000farad Type Of Capacitor Replace Batteries
Product name | Super capacitor battery |
Specification: | 4.2v 21000F |
Place of origin: | Guangdong,CN |
Terminal: | paper |
Operating temperature: | From -40 to +70℃ |
ESR: | 1mΩ |
Life cycle: | Over 20,000 cycles |
Standard current: | 20A |
Max continuous current: | 40A |
Storaged energy: | 75WH |
MOQ: | 6PCS |
OEM | Yes |
Size: | D220*128*7.5MM |
Weight: | 350G |
Warranty: | 3 Years |
Color: | Blue or customize |
Application: | Energy storage;Telecom;UPS;Solar system;Start up; Electric tools; EV etc |
A supercapacitor (SC) also called an ultracapacitor, is a high-capacity capacitor with a capacitance value much higher than other capacitors, but with lower voltage limits, that bridges the gap between electrolytic capacitors and rechargeable batteries.
Why are supercapacitors used in cars?
Supercapacitors are electric storage devices which can be recharged very quickly and release a large amount of power. In the automotive market they cannot yet compete with Li-ion batteries in terms of energy content, but their capacity is improving every year.
What does a super capacitor do?
A supercapacitor is a type of capacitor that can store a large amount of energy, typically 10 to 100 times more energy per unit mass or volume compared to electrolytic capacitors. It is preferred to batteries owing to its faster and simpler charging, and faster delivery of charge.
How is energy stored in supercapacitors cells?
Supercapacitors (SCs) are electrochemical energy storage devices that store and release energy by reversible adsorption and desorption of ions at the interfaces between electrode materials and electrolytes.
Can supercapacitors replace batteries?
Supercapacitors are superior to traditional capacitors due to their ability to store and release energy; however, they haven't been able to replace the function of conventional Lithium-Ion batteries.

