In part 4, the control and novel prototypes were charged and discharged for 22 trials. To do this, one jumper wire was connected so that one end was connected to the positive side of the supercapacitor, and one end was connected to the voltage source. Then, another jumper wire was connected to one end of the negative side of the supercapacitor and one to the voltage source. The variable voltage source was turned on at 30V Volts and 0.328 amperes. After waiting for 20 seconds, the voltage value was recorded down. These steps were repeated for each supercapacitor to charge the supercapacitor. Once the supercapacitor had been charged, the long leg of the LED was connected to the positive anode. A jumper wire was used to connect the end. Then, the short end of the LED was connected to the negative anode. A jumper wire was used again to connect the end. A stopwatch was then used to measure how long the supercapacitor can light up that specific LED. The supercapacitor was then charged again, and the previous charge and discharge steps were repeated for 22 trials. The average obtained from the repetitive trials gave a competitive analysis when comparing it to the raw MnO2 prototype as well as other commercial supercapacitors. 33