Hertz - The standard unit of frequency. A frequency of one complete cycle per second is a frequency of one hertz.
Overcharge - The forcing of current through a cell after all the active material has been converted to the charged state, that is, continued charging after reaching 100 percent state-of-charge.
Load (linear) - Load for which voltage form and current form are similar. Voltage and current are related by Ohm's law U(t) = Z x I(t).
Power Surge - Voltage above 110% of rated RMS voltage for one or more cycles.
Top-Up Charge - A low rate charge following the main charge, designed to ensure maximum capacity.
Capacity - The total number of ampere-hours or watt-hours that can be withdrawn from a fully charged cell or battery under specified conditions of discharge.
Thermostat - A temperature sensitive switch.
