Super Capacitor - 100F/2.7V
Combine two in series for 50F/5.4V. Our testing told us that two of these can power Arduino for 4 hours (with one LED). You can recharge the capacitor just within 30 seconds.
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), uninterruptable power supplies (UPS), electric valves, actuators, wind velocity (pitch control), and alarm/security devices.
Warning: Do not over voltage or reverse polarize these capacitors.
Rating Voltage: 2.7V.