Polarization - The lowering of the potential of a cell or electrode from its equilibrium value caused by the passage of an electric current.
Crest factor (Fc) - Ratio between the peak current value to the rms current value.
Tolerance in % - Limit for allowable variations for a given quantity, expressed as a percent of the rated value.
Shelf Life - The duration of storage under specified conditions at the end of which the battery still retains the ability to give a specified performance.
Earthing system TN - Earthing system in which the exposed conductive parts are interconnected and connected to the neutral. The neutral is connected to the earth. The installation must be de-energized immediately in the event of an insulation fault.
Open-Circuit Voltage (OCV) - The difference in potential between the terminals of a cell when the circuit is open (no-load condition).
Frequency Variation - A change in frequency of more than 3 Hz.