actice is to place multiple supercapacitor in series. Unfortunately, manufactured supercapacitor may have a tolerance diff rence in capacitance, resistance and leakage current. These differences create an imbalance i the cell voltages of supercapacitor wired in series. It is important to keep the voltage on any sing
The charging voltage should not exceed the supercapacitor's rated voltage, to prevent overvoltage damage. A voltage regulation circuit is necessary. When multiple supercapacitors are connected in series, voltage balancing is required to prevent any cell from going over-voltage.
e will charge to a higher voltage in a series string. Supercapacitor capacitance values may dif er as much as ±20% (total of 40%) from cell to cell. For example, in a batch of supercapacitor it is possible to find one cell rated at 2.7 V w
When your capacitors are paralleled, for charging, the total capacitance will be the sum of all the capacitances, the value of the equivalent series resistance (ESR) will be the values of the individual ESRs in parallel, and the cranking will be much more difficult than if they were in series.
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