Mitsubishi Evolution X. Manual - part 912
BATTERY
TSB Revision
CHASSIS ELECTRICAL
54A-9
BATTERY TEST
M1541001201509
BATTERY TESTING PROCEDURE
STEP 1. Check the battery cables.
Remove the negative cable, then the positive cable.
Check for dirty or corroded connections.
Q: Are the battery cables dirty or have corroded
connections?
YES :
Clean the battery cables. Then go to Step 2.
NO :
Go to Step 2.
STEP 2. Check the battery post.
Check for loose battery post.
Q: Are the battery posts faulty?
YES :
Replace the battery. Then go to Step 4.
NO :
Go to Step 3.
STEP 3. Check the battery case.
(1) Remove the hold-downs.
(2) Check for broken/cracked case.
Q: Is the battery case faulty?
YES :
Replace the battery.
NO :
Go to Step 4.
STEP 4. Check the open circuit voltage.
(1) Turn headlights on for 15 seconds.
(2) Turn headlights off for two minutes to allow
battery positive voltage to stabilize.
(3) Disconnect the battery cables.
(4) Read open circuit voltage.
Q: Is open circuit voltage 12.4 volts or more?
YES :
Go to Step 6.
NO :
Go to Step 5.
STEP 5. Battery charging
With 5 amp from the current voltage, charge the bat-
tery by referring to the Graph 1.
Q: Is open circuit voltage 12.4 volts or more?
YES :
Go to Step 6.
NO :
Replace the battery.
STEP 6. Check the load test.
(1) Connect a load tester to the battery.
(2) Load the battery at the recommended discharge
rate (See LOAD TEST RATE CHART) for 15
seconds.
(3) Read voltage after 15 seconds, then remove
load.
(4) Compare the measured value with the minimum
voltage (See LOAD TEST CHART).
Q: Is the voltage higher than minimum voltage?
YES :
The battery is normal.
NO :
Replace the battery.
LOAD TEST CHART
LOAD TEST RATE CHART
Temperature
° C
(
° F)
21 (70)
and
above
16 (60)
10 (50)
4 (40)
−1 (30)
−7 (20)
−12 (10) −18 (0)
Minimum voltage
9.6
9.5
9.4
9.3
9.1
8.9
8.7
8.5
Load test
220 amps
Cranking ratio [
−18° C (0° F)]
450 amps
Reserve capacity
84 minutes
Application
S65D26L