All 0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Word Description
Absorbent Glass Mat (AGM) A separator technology used in some sealed lead-acid batteries in which the glass-mat separator absorbs 100% of the electrolyte. Because of the immobilized electrolyte, an AGM battery will not leak or spill and does not require water addition. This battery is used in deep-cycle and specialty applications such as telecommunications, wheelchairs and security alarm systems, as well as in automotive starting applications.
AC Alternating Current - An electric current that varies periodically in magnitude and direction. A battery does not deliver alternating current. This periodic variation is counted in hertz.
Active Material The chemical paste that adheres to the positive (+) and negative (-) electrodes in a battery and reacts with the sulfuric acid.
AGM Absorbent Glass Mat - Separator technology used in some sealed lead-acid batteries in which the glass-mat separator absorbs 100% of the electrolyte. Because of the immobilized electrolyte, an AGM battery will not leak or spill and does not require water addition. This battery is used in deep-cycle and specialty applications such as telecommunications, wheelchairs and security alarm systems, as well as in automotive starting applications.
AH Amp-Hour : The unit of measure for a battery's electrical storage capacity, obtained by multiplying the current in amps by the time in hours of discharge. Example: A battery delivering 10 amps for 20 hours = 10 amps x 20 hours = 200 AH.
Alkaline Battery A nonrechargeable, dry-cell battery such as a AA, AAA, C, D or 9-volt battery that uses alkaline aqueous solution for its electrolyte. It has a greater capacity than some other types of dry-cell batteries.
Alloy A mixture of different types of metals or a mixture of a metal and a nonmetal.
Alternating Current (AC) - An electric current that varies periodically in magnitude and direction. A battery does not deliver alternating current. This periodic variation is counted in hertz.
Alternator An alternating-current generator that produces and rectifies current so that it can be used in an automobile.
American National Standards Institute (ANSI) - An organization, sponsored by the National Electric Manufacturers Association (NEMA), that establishes policy and standards regarding cell sizes, terminals and testing procedures.
Ammeter An instrument that measures the flow of current in amps. Ammeters can be made to read DC (Direct Current) and AC (Alternating Current.)
Amp Short for ampere, it is the unit of measure for the amount of current that is flowing through a circuit.
Amp-Hour (AH) - The unit of measure for a battery's electrical storage capacity, obtained by multiplying the current in amps by the time in hours of discharge. Example: A battery delivering 10 amps for 20 hours = 10 amps x 20 hours = 200 AH.
Amperage The amount of current flow within a circuit, expressed in amps.
Ampere (Amp) - The unit of measure for the amount of current that is flowing through a circuit.
Anode The positive (+) terminal of an electrolyte battery. The negative (-) terminal of a primary cell battery.
ANSI American National Standards Institute - An organization, sponsored by the National Electric Manufacturers Association (NEMA), that establishes policy and standards regarding cell sizes, terminals and testing procedures.
Application The equipment in which a battery is used.
Automotive Battery A battery designed to start an automobile, also known as a Starting, Lighting, and Ignition (SLI) battery.
Average Drain The average current withdrawn i.e., the drain from a cell or battery during discharge, usually approximated by calculating the current at 50% depth of discharge.