Battery Load Test

Battery

NOTE: To prevent contact corrosion, only approved screws, nuts, discs, etc. should be used. These elements have a special surface coating and must be stored separately.

The battery is one of the most important electrical components in the vehicle. Fault-free functioning of the battery contributes greatly to customer satisfaction. To guarantee long and efficient operation, the battery must be checked and maintained according to the versions in this chapter.

Besides the start function, the battery also has the tasks of buffer and supplier of electrical energy for the entire vehicle electrical system.

Battery load test

NOTE:
- The electrolyte gravity test provides information about the state of the battery in connection with the battery load test.
- A battery test device is required for the load test.
- The battery must not be removed or disconnected.
- The battery must be charged before the load test is performed.

Carry out battery load test:
1. Switch ignition off and remove ignition key.
2. Observe the information in the operating instructions of the battery test device.
3. Connect the pliers of the test lines to the battery terminal as described in the operating instructions of the test device.
- As the load current varies, the current must be set depending on the battery capacity (operating instructions of test device).
4. Perform the battery load test in accordance with the operating instructions.
- The result of the battery load test is a voltage value that must be compared with the specified minimum voltage (limit value).







5. If the minimum voltage is not attained, replace battery.

Remarks on battery load test:
- The battery voltage sinks during this test due to the severe load on the battery.
- If the battery is in order, the voltage value only reduces to the minimum voltage.
- If the battery is faulty, the battery voltage will sink very quickly below the specified minimum voltage.
- After the test has taken place, the low voltage value remains over a long period of time, the voltage increases again slowly.