User Manual
25
Acid—Sulfuric acid, used to describe
the electrolyte or liquid contained in a
battery’s cells. Pages
6, 7.
Active Materials—Materials in a
battery that react chemically to produce
electrical energy; lead peroxide
(positive plates) and sponge lead
(negative plates).
Activation—Adding electrolyte to a dry
battery. Pages
8, 14, 23.
AGM—Absorbed glass mat. Page
6, 8, 9,
14, 16.
AGM Battery—A battery that does
not contain any liquid electrolyte. The
electrolyte is absorbed in glass mat
material located in each of the battery’s
cells. AGM and VRLA (Valve Regulated
Lead Acid) batteries are the same
design. Page
8, 16.
Ampere—The amount of electrical that
a battery produces. Page
10, 11.
Ampere-Hour—A measure of the
volume of electricity (one amp per
hour). Pages
10, 19.
Ampere-Hour Capacity—The number
of ampere-hours that can be delivered
by a battery under specifi c conditions.
Page
19.
Antimony—A hard, brittle, silver-white
metal with a high luster from the arsenic
family. Pages
9, 15.
Cadmium—A metallic element
highly resistant to corrosion used
as a protective plating on battery
components.
Capacity Test—A test that discharges
a battery using a constant current at
room temperature until voltage drops to
1.75 per cell.
Charged—A battery cell’s maximum
ability to deliver current (amps). The
positive plates contain a maximum
of lead oxide and a minimum of lead
sulfate, and the negative plates contain
a maximum of sponge lead and a
minimum of sulfate. The electrolyte is
at maximum specifi c gravity. Pages
6, 8,
10, 11, 12.
Charged and Dry—A battery
assembled with dry, charged plates and
no electrolyte.
Charged and Wet—A fully charged
battery containing electrolyte (ready to
be installed).
Charging—The process of converting
electrical energy to stored chemical
energy. Pages
5, 6, 7, 9, 11.
Charging Rate—The current (amps) in
amperes at which a battery is charged.
Page
9.
Cold Cranking Amps—The number of
amps a battery can produce at
0° F for
30 seconds without cell voltage falling
below
7. 2 volts. Pages 5, 8, 10.
Constant Current Charge—A battery
charger that produces a constant
current (amps) during the charging
process. Pages
12, 13, 15.
Conventional Battery—Same as a
standard battery or any YuMicron or
YuMicron CX battery. Page
7, 9, 13, 14,
15, 18.
Current—The fl ow of electrical energy
normally expressed as amperes or
amps. Pages
5, 6, 7 , 10, 11, 12.
Deep Discharge—Removal of up
to
80% of the rated capacity of a
battery’s cell.
Discharge—Conversion of a battery’s
chemical energy into electrical energy.
Pages
6, 7, 8, 10, 11.
Discharge Rate—Any specifi ed
amperage rate at which a battery is
discharged.
Dry Charged—Battery cell plates
that have been subjected to the dry
charging process.
Electrolyte—In a battery electrolyte
is a diluted solution of sulfuric acid and
water. Pages
6, 7, 8, 11, 12, 14, 15, 17,
18, 20.
Float Charge—Recharge voltage rate
that is slightly higher than the open circuit
voltage of a battery. Pages
15, 16.
Glass Mat—Fabric made from glass
fi bers with a polymeric binder such as
styrene or acrylic which is used to help
retain positive active material. Glass
mats also absorb electrolyte in an AGM
battery. Pages
8, 9.
Hydrometer—A device used to
measure specifi c gravity of electrolyte
in a battery. Pages
20, 21.
Lead—Sometimes listed as Pb is a
chemical element used in lead acid
batteries. Pages
5, 6, 7, 8, 15 .
Lead Antimony—A commonly used
alloy in battery castings or plates.
Pages
15.
Lead Calcium—A lead base alloy that is
sometimes used for battery components
in place of antimonial lead alloys. Also
know as lead calcium. Pages
8, 9, 15.
Lead Oxide—A general term for any
of the lead oxides used to produce
battery plates.
Lead Peroxide—A brown lead oxide
which is the positive material in a fully
formed positive battery plate. Page
6.
Lead Sponge—The chief component
of the active material of a fully-charged
negative battery cell plate.
Glossary 6