8 hours gives 80 ampere hours. See note under "Volt?" for more
complete explanation of current flow.
Battery. Two or more electrical cells, electrically connected so that
combination furnishes current as a unit.
Battery Terminals. Devices attached to the positive post of one end
cell and the negative of the other, by means of which the battery is
connected to the car circuit.
Bridge (or Rib). Wedge-shaped vertical projection from bottom of
rubber jar on which plates rest and by which they are supported.
Buckling. Warping or bending of the battery plates.
Burning. A term used to describe the operation of joining two pieces
of lead by melting them at practically the same instant so they may
run together as one continuous piece. Usually done with mixture of
oxygen and hydrogen or acetylene gases, hydrogen and compressed air,
or oxygen and illuminating gas.
Burning Strip. A convenient form of lead, in strips, for filling up
the joint in making burned connections.
Cadmium. A metal used in about the shape of a pencil for obtaining
voltage of positive or negative plates. It is dipped in the
electrolyte but not allowed to come in contact with plates.
Capacity. The number of ampere hours a battery can supply at a given
rate of current flow after being fully charged, e.g., a battery may be
capable of supplying 10 amperes of current for 8 hours before it is
exhausted. Its capacity is 80 ampere hours at the 8 hours rate of
current flow. It is necessary to state the rate of flow, since same
battery if discharged at 20 amperes would not last for 4 hours but for
a shorter period, say 3 hours. Hence, its capacity at the 3 hour rate
would be 3x2O=60 ampere hours.
Case. The containing box which holds the battery cells.
Cell. The battery unit, consisting of an element complete with
electrolyte, in its jar with cover.
Charge. Passing direct current through a battery in the direction
opposite to that of discharge, in order to put back the energy used on
discharge.
Charge Rate. The proper rate of current to use in charging a battery
from an outside source. It is expressed in amperes and varies for
different sized cells.
Corrosion. The attack of metal parts by acid from the electrolyte; it
is the result of lack of cleanliness.
Cover. The rubber cover which closes each individual cell; it is
flanged for sealing compound to insure an effective seal.
Cycle. One charge and discharge.
Density. Specific gravity.
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