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5. Switch on the upper beam headlights and set the fan to the highest
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setting. Repeat steps 3 and 4. The voltage reading should not change
more than by 0.1 to 0.3 Volts (V). In such a condition, the charging
circuit is in good condition.
6. Remove the terminal clamps after testing. First disconnect the negative
clamp and then disconnect the positive clamp.
c) Starter motor test
This measurement is to be performed for 12 V systems only. This
measurement determines whether the starter draws too much current,
which aggravates starting and reduces the lifespan of the car battery. Make
sure to perform the battery load test before conducting the starter test. Only
if the car battery is in good condition can the starter test be performed.
Observe the voltage value determined during the battery load test.
1. Let your vehicle reach normal operating temperature. Switch off the
engine, all connected appliances and any connected battery charger.
2. Connect the terminal clamps (7) to your car battery. Connect the red
positive clamp to the positive terminal of the car battery first and then
connect the black negative clamp to the negative terminal. Ensure a
secure connection of the terminal clamps.
3. Apply the voltage value determined during the battery load test to the
starter test table below. The next lower cold start voltage is applicable
for vehicles featuring an engine with a displacement of more than
5,000 ccm. For example: If the voltage determined during battery load
test accounts for 11 V, use 10.3 V as minimum start voltage.
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