Charge Conversion Hub

Understanding Electric Charge & Quantized Transport

Electric charge (denoted by $Q$ or $q$) is a fundamental conserved physical property of matter that causes it to experience electromagnetic force. Charge is quantized in integer multiples of the elementary charge ($e \approx 1.602176634 \times 10^{-19}\text{ C}$).

Standard Units & Battery Capacities

• SI Standard: Coulomb ($\text{C}$). One coulomb equals one ampere-second ($1\text{ C} = 1\text{ A}\cdot\text{s} \approx 6.2415 \times 10^{18}\text{ elementary charges}$).
• Electrochemical Units: Ampere-hour ($\text{Ah}$) and milliampere-hour ($\text{mAh}$). $1\text{ Ah} = 3,600\text{ C}$. Commonly used to rate battery energy storage capacities.
• Faraday Constant: Faraday ($F \approx 96,485.33\text{ C/mol}$), representing the electric charge of one mole of electrons.