Battery - Lancer Evolution Mitsubishi Lancer Evolution X

GENERAL INFORMATION

The sealed battery is installed in the trunk room. The sealed battery has a structure that uses the sealed reaction (cathodic absorption), eliminating the needs for refilling and liquid level check.

Scheme 87

1. The sealed reaction (cathodic absorption) brings the oxygen gas*, which is generated at positive pole, to the negative pole, and binds the oxygen gas with hydrogen gas generated at negative pole. As a result, the gas is transformed back to water, preventing the decrease of electrolytic solution. NOTE: *: The generation of oxygen gas at positive pole occurs in an earlier stage than that of hydrogen gas at negative pole.
2. Calcium alloy with superior characteristics of electrolyte decrease is used for the polar plate grille between the positive and negative poles in the battery container.

Although the sealed reaction (cathodic absorption) occurs with 100% efficiency with a normal use, the generated gas may not be absorbed completely under the statuses of overcharging, high temperature, or high voltage. Therefore, to prevent the charging of non-absorbed inflammable gas inside the trunk room, the battery exhaust tube (battery cover hose) and pipe for gas bleeding are equipped.

BATTERY VOLTAGE SPECIFICATION

Scheme 88

ELECTROLYTE LEVEL AND SPECIFIC GRAVITY CHECKS

Note. To maintain the battery performance, never remove the label or top lid.

CHARGING

1. Remove the battery from the vehicle.
2. Set the charging current to 5 amps or less and charge the battery by referencing the charging time in Graph 1 described in the section "battery test". (Refer to «BATTERY TEST»(/mitsubishi/lancer-evolution/x-2007-2016/remont/body-electrical/#battery-lancer-evolution) .)

How to judge the completion of charging

Perform the battery test to check if it is normal.

BATTERY TESTING PROCEDURE

1. 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.
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.
3. STEP 3. Check the battery case. Remove the hold-downs. Check for broken/cracked case. Q: Is the battery case faulty? YES: Replace the battery. Then go to Step 4. NO: Go to Step 4.
4. STEP 4. Check the open circuit voltage. Turn headlights on for 15 seconds. Turn headlights off for two minutes to allow battery positive voltage to stabilize. Disconnect the battery cables. Read open circuit voltage. Q: Is open circuit voltage 12.4 volts or more? YES: Go to Step 6 . NO: Go to Step 5.
5. STEP 5. Battery charging Charge the battery. (See «CHARGE RATE CHART»(/mitsubishi/lancer-evolution/x-2007-2016/remont/body-electrical/#battery-lancer-evolution__charging) ) Q: Is open circuit voltage 12.4 volts or more? YES: Go to Step 6. NO: Replace the battery.
6. STEP 6. Check the load test. Connect a load tester to the battery. Load the battery at the recommended discharge rate (See «LOAD TEST RATE CHART»(/mitsubishi/lancer-evolution/x-2007-2016/remont/body-electrical/#battery-lancer-evolution__load-test-rate-chart) ) for 15 seconds. Read voltage after 15 seconds, then remove load. Compare the measured value with the minimum voltage. (See «LOAD TEST CHART»(/mitsubishi/lancer-evolution/x-2007-2016/remont/body-electrical/#battery-lancer-evolution__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 CHART

LOAD TEST RATE CHART

LOAD TEST RATE CHART

Scheme 89

Scheme 90

See also:
• BATTERY TEST
• CHARGE RATE CHART
• LOAD TEST RATE CHART
• LOAD TEST CHART