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Sealed Cell
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Cells sealed by means of valvs to mantain predeterminated pressure within the cell.
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Secondary Battery
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A rechargeable battery.
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Self-Discharge
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Discharge which takes place while the battery
is on open circuit.
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Separator
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Material placed between plates
of opposite poles in order to prevent internal short circuits;
the material must also allow the current to pass through.
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Range Connection
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A circuit in which the positive pole of battery is connected to the negative pole of the next battery.
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Shedding
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The separation of active material from the plate during operation. The term is usually used in connection with the positive plates.
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Shelf Life
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The ability of a battery to retain its charge on open circuit. See self discharge.
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Short Circuit
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A circuit through a low resistance, either external to the battery or internal.
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Specific Gravity
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Weight per unit volume of a substance relative to that of water.
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Storage Battery
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A rechargeable battery.
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Sulphation
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In its common usage, the term refers
to the formation of lead sulphate in plates of such physical properties that it is
extremely difficult, if not impossible, to reconvert it
to active material.
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Sulfuric Acid
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An acid made by
dissolving sulphur trioxide in water.
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Automotive Battery
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Battery used to start internal
combustion engines.
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