Kia Carens: Charging System / Battery Repair procedures
Battery Charging
In general, vehicle battery charging system has three forms.
| 1. |
Constant current charge: The battery voltage gradually rises by charging
with setting a constant current. If charging current and time are not
managed correctly, the battery is over-charged, therefore charging should
be stopped after confirming the completion of charging.
| – |
General charge: Charging the battery for a long time with low
current
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| – |
Quick charge: Charging the battery for a short time with high
current
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| 2. |
Constant voltage charge: The battery charge current is gradually reduced
by charging with setting a constant voltage.
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| 3. |
Constant current-Constant voltage charge: Charging with constant current
and voltage to protect the battery damage
| (1) |
Initial Stage: Charging with constant current
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| (2) |
Last Stage: Charging with constant voltage
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Refer to the instruction manual provided by the battery
charger equipment manufacturers for detailed charging
procedures and precautions.
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[AGM Battery Charging]
AGM battery should be charged with constant voltage or constant current-constant
voltage in order to minimize performance degradation due to the charging.
If charging the battery with constant current, overcharging may occur. It can
cause damage to the internal battery and will give an adverse effect on battery
life.
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Do not charge with more than 14.8V or quick charge mode.
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[Constant Voltage Charge Conditions]
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Charging voltage / time: 14.7V [68°F ~ 86°F (20°C ~ 30°C)] / approximately
24 hours
The minimum charge voltage: 14.4V [68°F ~ 86°F (20°C ~ 30°C)]
The maximum charging voltage: 14.8V [68°F ~ 86°F (20°C ~ 30°C)]
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Battery temperature should be maintained at about 68°F ~ 86°F (20°C
~ 30°C) during charging of the battery.
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If the battery is charged directly at the battery terminals on vehicles
with battery sensor, misinterpretations of battery condition and under
certain circumstances also unwanted Check Control messages or fault
memory entire can occur.
After recharging finished, let the battery stand for over 10 hours with
normal temperature for battery stabilization.
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Electrolyte Level Inspection (MF Openable Battery only)
| 1. |
Check that the electrolyte level lies between the “UPPER” and the
“LOWER” lines.
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| 2. |
If the electrolyte level is below the "LOWER" line, add water until
the level of electrolyte comes up to the "UPPER" level.
| (1) |
Remove the cell caps (A) and then carefully add distilled or
purified water to bring the level of electrolyte in each cell
to the "UPPER" line.
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| (2) |
Put the cell caps back on the battery.
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| (3) |
Charge the battery to mix the water and residual acid in the
battery.
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• |
Never use the water with impurities or additives
to fill the battery cells. It will reduce the
life and performance of the battery.
|
|
• |
Do not overfill the battery cells. It may result
in an "overflow" of the acid electrolyte and
cause corrosion on adjacent metal parts, performance
deterioration and shortening the life span.
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• |
Make sure the cell caps are installed securely
before charging the battery after filling the
battery cells.
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| 1. |
Turn the ignition switch OFF and disconnect the battery negative (-)
cable.
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| 2. |
Disconnect the positive (+) terminals (A) from the battery.
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| 3. |
Remove the battery insulation pad.
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| 4. |
Remove the battery mounting bracket (B) by loosening the mounting bolt
and then remove the battery (C).
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| 5. |
Remove the ECM. (Refer to Engine Control/Fuel System - “Engine Control
Module (ECM)”)
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| 6. |
Remove the battery tray (A) after removing the bolts (B).
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| 1. |
Install in the reverse order of removal.
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Battery (-)terminal installation:
4.0 ~ 6.0 N.m (0.4 ~ 0.6 kgf.m, 3.0 ~ 4.4 lb-ft)
Battery (+)terminal installation:
7.8 ~ 9.8 N.m (0.8 ~ 1.0 kgf.m, 5.8 ~ 7.2 lb-ft)
Battery mounting bracket and the insulation pad installation:
9.8 ~ 14.7 N.m (1.0 ~ 1.5 kgf.m, 7.2 ~ 10.8 Ib-ft)
Battery tray installation bolts:
9.8 ~ 14.7 N.m (1.0 ~ 1.5 kgf.m, 7.2 ~ 10.8 Ib-ft)
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| •
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When installing the battery, fix the mounting bracket
on the tray correctly.
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| •
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ISG (Idle stop & go) system equipped vehicle always
use the AGM battery only. If flooded battery has installed,
this can potentially lead to engine electrical trouble
or ISG system error.
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| •
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Replace same capacity of the AGM battery.
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| •
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Ensure an AGM battery is fitted.
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| •
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In all cases, an AGM battery must be installed and registered
in the vehicle for the ISG function to work perfectly.
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| •
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The vehicle with the new battery must be placed in the
ignition switch OFF and door closed, hood switch OFF
state for at least 4 hours.
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| •
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ISG system’s stabilization may take 4 hours after
new battery installation.
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| •
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ISG function is operates about 4 hours later and 2 times
cranking by user.
But first 25 times, the ISG function can operates regardless
of ISG system stability for ISG function operating check.
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| •
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Do not open the AGM battery.
The AGM battery must not be opened under any circumstances
as the introduction of oxygen from the air will cause
the battery to lose its chemical equilibrium and rendered
non-operational.
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|
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| Vehicle parasitic current
inspection |
| 1. |
Turn the all electric devices OFF, and then turn the ignition switch
OFF.
|
| 2. |
Close all doors except the engine hood, and then lock all doors.
| (1) |
Disconnect the hood switch connector.
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| (3) |
Close the doors or remove the door switches.
|
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| 3. |
Wait a few minutes until the vehicle’s electrical systems go to sleep
mode.
| •
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For an accurate measurement of a vehicle parasitic current,
all electriacl systems should go to sleep mode. (It
takes at least one hour or at most one day.) However,
an approximate vehicle parasitic current can be measured
after 10~20 minutes.
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| 4. |
Connect an ammeter in series between the battery (-) terminal and the
ground cable, and then disconnect the clamp from the battery (-) terminal
slowly.
| •
|
Be careful that the lead wires of an ammeter do not
come off from the battery (-) terminal and the ground
cable to prevent the battery from being reset. In case
the battery is reset, connect the battery cable again,
and then start the engine or turn the ignition switch
ON for more than 10 sec. Repeat the procedure from No.
1.
To prevent the battery from being reset during the inspection,
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| a. |
Connect a jump cable between the battery (-) terminal
and the ground cable.
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| b. |
Disconnect the ground cable from the battery (-) terminal.
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| c. |
Connect an ammeter between the battery (-) terminal
and the ground cable.
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| d. |
After disconnecting the jump cable, read the current
value of the ammeter.
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| 5. |
Read the current value of the ammeter.
| • |
If the parasitic current is over the limit value, search for
abnormal circuit by removing a fuse one by one and checking
the parasitic current.
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| • |
Reconnect the suspected parasitic current draw circuit fuse
only and search for suspected unit by removing a compoconnected
with the circuit one by one until the parasitic draw drops below
limit value.
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Limit value (after 10~20 min.) : Below 50mA
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| 1. |
Make sure the ignition switch and all accessories are in the OFF position.
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| 2. |
Disconnect the battery cables (negative first).
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| 3. |
Remove the battery from the vehicle.
| •
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Care should be taken in the event the battery case is
cracked or leaking, to protect your skin from the electrolyte.
Heavy rubber gloves (not the household type) should
be wore when removing the battery.
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| 4. |
Inspect the battery tray for damage caused by the loss of electrolyte.
If acid damage is present, it will be necessary to clean the area with
a solution of clean warm water and baking soda. Scrub the area with
a stiff brush and wipe off with a cloth moistened with baking soda and
water.
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| 5. |
Clean the top of the battery with the same solution as described above.
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| 6. |
Inspect the battery case and cover for cracks. If cracks are present,
the battery must be replaced.
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| 7. |
Clean the battery posts with a suitable battery post tool.
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| 8. |
Clean the inside surface of the terminal clamps with a suitable battery
cleaning tool. Replace damaged or frayed cables and broken terminal
clamps.
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| 9. |
Install the battery in the vehicle.
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| 10. |
Connect the cable terminals to the battery post, making sure tops of
the terminals are flush with the tops of the posts .
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| 11. |
Tighten the terminal nuts securely.
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| 12. |
Coat all connections with light mineral grease after tightening.
| •
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When batteries are being charged, an explosive gas forms
beneath the cover of each cell. Do not smoke near batteries
being charged or which have recently been charged. Do
not break live circuit at the terminals of batteries
being charged.
A spark will occur when the circuit is broken. Keep
open flames away from battery.
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Components
1. Battery insulation pad
2. Battery
3. Battery tray
4. Battery mounting bracket
...
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