battery capacity SUZUKI SWIFT 2008 2.G Service Workshop Manual

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Engine
Charging System
General Description
Battery DescriptionS7RS0B1A01001
The battery has three major functions in the electrical
system.
• It is a source of electrical energy for cranking the engine.
• It acts as a voltage stabilizer for the electrical system.
• It can, for a limited time, provide energy when the electrical load exceeds the output of the generator.
Carrier and Hold-Down
The battery carrier should be in good condition so that it
will support the battery securely and keep it level. Before
installing the battery, the ba ttery carrier and hold-down
clamp should be clean and free from corrosion and
make certain there are no parts in carrier.
To prevent the battery from shaking in its carrier, the
hold-down bolts should be tight enough but not over-
tightened.
Electrolyte Freezing
The freezing point of electrolyte depends on its specific
gravity. Since freezing may ruin a battery, it should be
protected against freezing by keeping it in a fully
charged condition. If a battery is frozen accidentally, it
should not be charged until it is warmed.
Sulfation
If the battery is allowed to stand for a long period in
discharged condition, the lead sulfate becomes
converted into a hard, cryst alline substance, which will
not easily turn back to the active material again during
the subsequent recharging. “Sulfation” means the result
as well as the process of that reaction. Such a battery
can be revived by very slow charging and may be
restored to usable condition but its capacity is lower than
before. Built-In Indicator (If Equipped)
The battery has a built-in temperature compensated
indicator in the top of the battery. This indicator is to be
used with the following diagnostic procedure. When
checking the indicator, make sure that the battery has a
clean top. A light may be needed in some poorly-lit
areas.
Three types of indication available under normal
operation are as follows.
•
Green dot
Battery is sufficiently charged for testing.
• Dark
Battery must be charged before testing. If there is a
cranking complaint, battery should be tested as
described in “Battery Inspection”. Charging and
electrical systems should also be checked at this time.
• Clear
This means that fluid level is below the bottom of
hydrometer. Its possible cause is excessive or
prolonged charging, a broken case, excessive tipping
or normal battery deteriorat ion. When the battery is
found in such condition, it is possible that high
charging voltage is caused by the faulty charging
system and therefore, charging and electrical systems
need to be checked. If there is a trouble in cranking
and its cause lies in the battery, it should be replaced.
I2RH011A0001-01

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Specifications
Charging System SpecificationsS7RS0B1A07001
Battery
Battery
: 48AH/20H, 40.6AH/5H 12 V
Generator
Tightening Torque SpecificationsS7RS0B1A07002
NOTE
The specified tightening torque is also described in the following.
“Generator Unit Components”
“Generator Components”

Reference:
For the tightening torque of fastener not specified in this section, refer to “Fasteners Information in Section 0A”.
Nominal output
12 V
Rated capacity 48 Ah/20 h
40.6 Ah/5 h
Cold cranking amperes 300 A (DIN)
Ty p e 80A type
Rated voltage 12 V
Nominal output 80A
Permissible max. speed 18,000 r/min.
No-load speed 1200 r/min. (rpm)
Regulated voltage 14.2 – 14.8 V at 25 ° C (77 °F)
Exposed brush length Standard: 16 mm (0.63 in.)
Limit: 5.0 mm (0.02 in.)
Permissible ambient temperature –30 to 100 °C (–22 to 212 °F)
Polarity Negative ground
Rotation Clockwise viewed from pulley side
Fastening partTightening torque
Note
N ⋅mkgf-mlb-ft
Generator bracket bolt 25 2.5 18.0 )
Generator pivot bolt 50 5.0 36.0 )
Generator adjusting bolt 70.7 5.0by the specified
procedure.
)

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Scan Tool DataS7RS0B8204006
Data list of SDM
Definition
Back Up Volt (V)
This parameter indicates the capacity of the backup
condenser installed to maintain the ignition current (as
much as possible) even when the power supply to SDM
that ignites the inflator is shut off.
Battery Voltage (V)
Battery voltage is an analog input signal read by SDM.
System ID (4ch/8ch)
This parameter indicates the number of initiator circuits.
Driv A/B Ini Res (Driver air bag initiator resistance)
(ohm)
This parameter indicates the resistance of the driver air
bag initiator circuit. Pass A/B Ini Res (Passenger air bag initiator
resistance) (ohm)
This parameter indicates the
resistance of the passenger
air bag initiator circuit.
Driv Preten Ini Res (Dri ver pretensioner initiator
resistance) (ohm)
This parameter indicates the resistance of the driver seat
belt pretensioner initiator circuit.
Pass Preten Ini Res (Passenger pretensioner
initiator resistance) (ohm)
This parameter indicates the resistance of the passenger
seat belt pretensioner initiator circuit.
Driv Sidebag Ini Res (Driver side-air bag initiator
resistance) (ohm)
This parameter indicates the resistance of the driver
side-air bag initiator circuit.
Pass Sidebag Ini Res (Passenger side-air bag
initiator resistance) (ohm)
This parameter indicates the resistance of the
Passenger side-air bag initiator circuit.
Driv curtain Ini Res (Driver side curtain-air bag
initiator resistance) (ohm)
This parameter indicates the re sistance of the driver side
curtain-air bag initiator circuit.
Pass curtain Ini Res (Passenger side curtain-air bag
initiator resistance) (ohm)
This parameter indicates the resistance of the passenger
side curtain-air bag initiator circuit.
“AIR BAG” Warning Right Comes ON SteadyS7RS0B8204007
Wiring Diagram Normal Condition /
Reference Value
) Battery voltage 10 – 14 V
) Back up volt 27.0 – 33.0 V
) System ID 4ch or 8ch
) Driv A/B Ini Res 2.1 – 3.8 ohm
) Pass A/B Ini Res 1.8 – 2.8 ohm
) Driv Preten Ini Res 1.8 – 2.9 ohm
) Pass Preten Ini Res 1.8 – 2.9 ohm
) Driv Sidebag Ini Res 1.8 – 2.6 ohm
) Pass Sidebag Ini Res 1.8 – 2.6 ohm
) Driv curtain Ini Res 1.8 – 2.8 ohm
) Pass curtain Ini Res 1.8 – 2.8 ohm
1
2 GRN
11
BLK
L29-27
L29-2
L29-28 WL
E1
IG
L29-32
ST
10
8
“L29”
RED
PPL/WHT
7
3
4 “L04”
“G34”
“G33”
“G28”
“G32”
5 6
“G32”
YEL/BLK
YEL/BLK
RED/BLK
9
I7RS0B820002-02
1. From main fuse 5. “AIR BAG” warning right in combination meter 9. To DLC
2. Ignition switch 6. Lamp driver 10. SDM
3. “METER” fuse 7. Junction block assembly 11. Ground for air bag system
4. “A/BAG” fuse 8. BCM