This is a 400 Farad capacitor. Combine two in series for 200F/5.4V. Two of these can power, for example, an Arduino UNO for more than 10 hours (with one LED on). The Super capacitor can be recharged within minutes.
It can be used in Electric toys, wireless modems, motor drivers, portable terminals, duplicators (rapid heating), car audios, remote controllers (self-electric charging), AMR(Automatic Meter Reading), uninterruptible power supply(UPS), electric valves, actuators, wind velocity(pitch control), alarm/security devices..the list goes on.
Warning: Do not over voltage or reverse polarize these capacitors.
- Rated Voltage: 2.7V
- Capacitance: 400 Farad
- Rating output current: 10A
- Maximum output current:>60A
- Max. ESR : 10 mili Ohm at 1KHz
- 100,000 cycle life
- Size: 35 x 62 mm
Supercapacitors bridge the gap between conventional capacitors and rechargeable batteries. They store the most energy per unit volume or mass (energy density) among capacitors. Supercapacitors power density is generally 10 to 100 times greater than conventional batteries. This results in much shorter charge/discharge cycles than batteries. Additionally, they will tolerate many more charge and discharge cycles than batteries. Supercapacitors are low voltage components. Safe operation requires that the voltage remain within specified limits. The rated voltage is the maximum DC voltage or peak pulse voltage that may be applied continuously and remain within the specified temperature range. Capacitors should never be subjected to voltages continuously in excess of the rated voltage.
Useful info HERE :