Battery; Service Specification; On-Vehicle Service; Fluid Level And Specific Gravity Check - Mitsubishi Electric Lancer Evolution-VII Workshop Manual

54A-4

BATTERY

SERVICE SPECIFICATION

Item
Specific gravity of the battery fluid
Good
Thermometer
Hydrometer

CHARGING

1. Remove the battery from the vehicle.
2. The normal charging current is a value in amperes which is 1/10th of the battery capacity. If the
battery needs to be charged rapidly because of reasons such as time limitations, the maximum charging
current for rapid charging is the battery capacity expressed as an ampere value.
Battery type
44B20
3. Determine when charging is finished.
When the specific gravity of the battery electrolyte is constantly within 1.250 - 1.290 for a
D
continuous period of one hour or more
When the voltage per cell during charging is 2.5 - 2.8 V constantly for a continuous period
D
of one hour or more
CHASSIS ELECTRICAL - CHASSIS ELECTRICAL -
Specification
1.220 - 1.290 [20_C]

ON-VEHICLE SERVICE

FLUID LEVEL AND SPECIFIC GRAVITY CHECK

1. Inspect whether or not the battery fluid is between the
UPPER LEVEL and LOWER LEVEL marks.
Caution
(1) If the battery fluid is below the LOWER LEVEL,
the battery could explode in using.
(2) If the battery fluid is over the UPPER LEVEL,
leakage could result.
2. Use a hydrometer and thermometer to check the specific
gravity of the battery fluid.
Standard value: 1.220 - 1.290 [20_C]
The specific gravity of the battery fluid varies with the
temperature, so use the following formula to calculate
the specific gravity for 20_C. Use the calculated value
to determine whether or not the specific gravity is
satisfactory.
D20 = (t - 20) × 0.0007 + Dt
D20: Specific gravity of the battery fluid calculated
for 20_C.
Dt: Actually measured specific gravity
t: Actually measured temperature
Capacity (5-hour rate)
34 A
Battery Battery
Normal charging current
3.4 A
Rapid charging current
34 A