SSANGYONG KYRON 2010.01 Manual page 457

05-6
1452-01
(2) Cold Cranking Amperage
The cold cranking amperage test is expressed at a battery temperature of -18°C(0°F).
The current rating is the minimum amperage, which must be maintained by the battery for 30
seconds at the specified temperature, while meeting a minimum voltage requirement of 7.2
volts.
This rating is a measure of cold cranking capacity.
The battery is not designed to last indefinitely. However, with proper care, the battery will
provide many years of service. If the battery tests well, but fails to perform satisfactorily in
service for no apparent reason, the following factors may point to the cause of the trouble:
Vehicle accessories are left on overnight.
·
Slow average driving speeds are used for short periods.
·
The vehicle's electrical load is more than the generator output, particularly with the addition
·
of aftermarket equipment.
Defects in the charging system, such as electrical shorts, a slipping generator belt, a faulty
·
generator, or a faulty voltage regulator.
Battery abuse, including failure to keep the battery cable terminals clean and tight or a loose
·
battery hold-down clamp.
Mechanical problems in the electrical system, such as shorted or pinched wires.
·
3) Charging Time Required
The time required to charge a battery will vary depending upon the following factors:
Size of Battery - A Completely discharged large heavy-duty battery required more than twice
▶
the recharging time as a completely discharged small passenger car battery.
▶ Temperature - A longer time will be needed to charge any battery at -18°C(0°F) than
at 27°C(80°F).
When a fast charger is connected to a cold battery, the current accepted by the battery will
be very low at first.
The battery will accept a higher current rate as the battery warms.
Charger Capacity - A charger which can supply only 5 amperes will require a much longer
▶
charging period than a charger that can supply 30 amperes or more.
State-of-Charge - A completely discharged battery requires more than twice as much charge
▶
as a onehalf charged battery.
Because the electrolyte is nearly pure water and a poor conductor in a completely
discharged battery, the current accepted by the battery is very low at first. Later, as the
charging current causes the electrolyte acid content to increase, the charging current will
likewise increase.
ENGINE ELECTRICAL SYSTEM
KYRON 2010.01