where R is the total internal resistance (Ω), ΔVdrop is the Ohmic voltage drop (V), and I is the charging/discharging current applied (A). Please note that ΔVdrop, the Ohmic voltage drop, is distinct from ΔV, the change in voltage during discharge, given in Equation . This result demonstrates the need to reinforce correct analysis procedures set out in previous studies as they are not being strictly followed by the community . Incorrect calculation of the total internal resistance will also lead to inaccurate reporting of the power, P, of a device (in Watts; W), which can be expressed as shown in Equation for an ideal supercapacitor :