Rugged…Tough…Intelligent….Automatic…Waterproof…Reliable Battery Chargers

Ohmmeter: An instrument for measuring resistance.

Open Voltage Circuit: The voltage of a battery with no charging and no load applied, i.e.., with no charge or discharge current present.

Overcharge: Charging beyond the point where the full capacity of the battery occurred.

Overcurrent: Any current in excess of the rated current of equipment or the ampacity of a conductor. It may result from overload, short circuit or ground fault.

Overload: Load exceeding the specification for which the system was intended.

Overvoltage Protection: A circuit which shuts down the battery charger in the event of an output overvoltage condition.

PARD: Acronym for periodic and random deviation, referring to the sum of all ripple and noise components on the output of a battery charger or power supply.

Plenum: Chamber or space forming a part of an air conditioning system.

Primary Cell (or Battery): A battery not designed to be recharged and is discarded at the end of its first complete discharge.

Rated Capacity: The number of ampere-hours a battery is capable of supplying under a given set of conditions such as temperature, load and minimum voltage.

Remote Sense: Sense lines connected from the regulation loop of the battery charger or power supply to the load in order to provide the ability to sense the voltage at the load. This provides compensation for voltage drops in the output cables or any other in line circuitry.

Reverse Polarity Protection: A protective feature which prevents the charger from damage and current draw from the battery when the charger leads are connected in reverse.( plus charger to minus battery, etc.)

Safety Ground: A conductive path to earth that is designed to protect persons from electrical shock by shunting away any dangerous currents that might occur due to malfunction or accident.

Secondary Battery: A galvanic battery which, after discharge, may be restored to the fully charged state by the passage of an electric current though the battery in the opposite direction to that of discharge.

Self Discharge: The loss of stored energy in a battery, with no load applied as a result of internal chemical processes.

Series Connection: The interconnection of batteries such that the positive terminal of the first is connected to the negative terminal of the second, etc. Series connections result in the resulting voltage measured at the first and last cells being the sum of voltage of the all cells. Series connections also result in all batteries experiencing the same charge and discharge current.

Shelf Life: The duration of storage under specified conditions at the end of which a battery continues to meet a given specification.

Standby Current: The input current drawn by a battery charger when connected to the battery and not supplying power.

State of Charge: The amount of energy stored in a battery at a given time.