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5.
ELECTRICAL PARTS
Discharge rate : 1 0 hours current factor
Electrolyte temperature during test : to be constant.
Discharge Rotes
If it takes T hours for a fully charged battery
to reach the final discharge voltage,
the
T hour
discharge rates of this battery is considered to be
XT ampere-hour (Ah), a discharge rates of X ampere
for T hours. Therefore, a battery having a capacity
of 12 Ah at discharge rates of l O hours will have
the capacity for discharging at a rate of 1. 2
A
( 12/10
=
1. 2 A), for 10 hours to reach the final
discharge voltage.
The charging current is also defined for a 10
hour charging rate current.
In other words, the
discharging or charging current of the battery, is
that lime required to discharged a battery to the
final voltage under a specified current.
Vacuum Dry Charged Battery
The present dry battery
in use (dry charged
battery) will produce a certain amount of charge
when the electrolyte is added, however, it will not
be a
100%
charge.
Normally, it requires charg-
ing for approximately 10 hours at a charging current
of
10-
15 hour rate to obtain a full charge.
A recently developed new type battery (vacuum
sealed dry charged battery)
has simplified the
servicing of the battery by eliminating the necessity
for the initial charge.
Honda 450 is being equipped
with the new type battery.
The difference between the two type batteries
are that, though the filler caps and other areas are
sealed, after a period of extended storage. moisture
will enter the dry charged battery and produce
sulfation of the lead sponge, deteriorating the dry
charge effectiveness. In contrast, the vacuum sealed
dry charged battery is fully sealed so that it is
not affected by the atmosphere, or long period of
storage.
Further, the plates are of different design
which improves the preservation of the electrical
charge.
Each battery is sealed in vinyl package
under vacuum and encased in a cardboard carton
to prevent damage.
During handling, care should
be exercised not to damage the packing so that
the vacuum sealing is rendered ineffective.
1.
Comparison of the Performances
a.
The batteries when initially filled with ele-
ctrolyte will produce the following
electrical
charge.
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