![]() ![]() ![]() The capacity of a battery is not a constant value and is seen to decrease with increasing discharge rate. The BCI Group Number does not designate a battery’s capacity it merely defines the above-listed physical characteristics.Ĭapacity: The capacity of a battery is specified as the number of amp-hrs that the battery will deliver at a specific discharge rate and temperature. Boost charging is typically done for a short duration at high current.īCI Group: The Battery Council International (BCI) Group Number "fingerprints" a battery with the following characteristics: (a) dimensions (L x W x H), (b) voltage (6V or 12V), (c) polarity (right-hand front positive, left-hand front positive, etc.), (d) type terminals (top, side, "L", etc.). (Example: A battery that delivers 5 amperes for 20 hours delivers 5 amperes x 20 hours = 100 amp-hrs of capacity.)īattery: One or more galvanic (electrochemical) cells electrically coupled into a single unit and equipped with attachments for external electrical connections.īattery Charger: Device supplying electrical energy to a battery.īoost Charge: The process of ensuring that the cells and plates within a battery are charged sufficiently for the battery to perform its desired function. VRLA batteries made with this material are often referred to as "AGM" batteries.Īmpere (Amp, A): The unit of measure of the electron flow rate, or current, through a circuit.Īmpere-Hour (Amp-Hrs, Ah): A unit of measure for a battery’s electrical storage capacity, obtained by multiplying the current in amperes by the time in hours of discharge. When an electrical circuit is created, these materials react with sulfuric acid during charging and discharging according to the following chemical reaction: PbO2 + Pb + 2H2SO4 = 2PbSO4 + 2H2O.ĪGM (Absorbent Glass Mat): A type of non-woven separator material composed almost entirely of glass microfibers that absorbs and retains the electrolyte, leaving no free electrolyte in the cell to spill. The active material in the positive plates is lead dioxide and that in the negative is metallic sponge lead. Sulfuric acid is used in a lead-acid battery.Īctive Material: The porous structure of lead compounds that produces and stores electrical energy within a lead-acid battery. Complete List of Battery Terms, Definitions, and Glossary by Clarios.Īcid: A type of chemical that can release hydrogen ions when mixed with water.
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