Rechargeable (or "Secondary") Battery - A galvanic battery which, after discharge, may be restored to the fully charged state by the passage of an electrical current through the cell in the opposite direction to that of discharge.
Cycle Life - The number of cycles under specified conditions which are available from a secondary battery before it fails to meet specified criteria as to performance.
Secure Waste Landfill - A landfill designed for disposal of normal household trash but which meets government standards designed to protect the environment.
Hertz - The standard unit of frequency. A frequency of one complete cycle per second is a frequency of one hertz.
Interference (high-frequency) - High-frequency parasitic current that is either conducted (electrostatic origin) or radiated (electromagnetic origin) by a device.
Power Surge - Voltage above 110% of rated RMS voltage for one or more cycles.
Switching Transients - Rapid voltage peak up to 20,000 volts with a duration of 10mS to 100mS.