The capacity of a battery depends on a number of factors such as: active material weight, density of the active material, adhesion of the active material to the grid, number, design and dimensions of the plates, plate spacing, design of separators, specific gravity and quantity of available electrolyte, grid alloys, final limiting voltage, discharge rate, temperature, internal and external resistance, age, and life history of the battery.Ī test that discharges a battery using a constant current at room temperature until voltage drops to 1.75 volts per cell. The ability of a fully charged battery to deliver a specified quantity of electricity (Ah) at a given rate (A) over a definite period of time (Hr). Chemical formula Sb, atomic number 51.Ī metallic element, highly resistant to corrosion, used as protective plating on battery components. (For example, a battery which delivers 5 amperes for 20 hours delivers 5A x 20Hr = 100Ah of capacity)Ī hard brittle silver-white metal with a high lustre from the arsenic family. The unit of measure of the electron flow rate, or current, through a circuitĪ unit of measurement for a battery’s electrical storage capacity, obtained by multiplying the current in amperes by the time of the hours of discharge. AGM and VRLA batteries are the same design The electrolyte is absorbed in glass mat material located in each of the battery’s cells. When an electrical circuit is created, these materials react with sulphuric acid during charging and discharging according to the following chemical reactionĪ battery that does not contain any free liquid electrolyte. The active material in the positive plates of a battery is lead dioxide and that in the negative plates is metallic sponge lead. This is the electrolyte or liquid contained in battery’s cells
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