This experiment report is based on the changing available charge capacity (electronudcount) of a battery by the average current demand, by using Peukert's Law. The batteryudcapacity written on packaging wasn't found to be constant, as Peukert's Law states thatudhigh current demand from a battery decreases the number of electrons that the batteryudcan provide. Thus, charge output and runtime aren't linearly correlated - current demandsuddecrease the charge output in a curved fashion. The power that this curve is raised to isudcalled the Peukert constant. This paper found the Peukert constant for GP 2700 SeriesudRechargable battery to be 1.174. The greater this constant is, the greater the electronudlosses.udResults are directly applicable to battery performance. Increasing currents are foundudto drain the battery exponentially (eg. doubling the current empties the battery notudtwice, but more than twice as fast). Thus, making energy-e�cient mobile devices willudnot only save energy, but will make more potential energy available to the device. Mostudimportantly, expecting to obtain the rated (advertised) battery capacity regardless ofudcurrent is ungrounded, while capacity is a function of current draft abiding by Peukert'sudLaw.udThis report analyzes 10 trials of collected current and runtime data by changing currentuddrafts (through varying resistances) to utilize the mathematical model leading to theudcalculation of the Peukert constant.
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