Westfalia 15 30 15 Original Instruction Manual page 20

During testing, the voltage in the electric system of the vehicle may drop sharply,
especially if the battery is discharged or defective. Please keep in mind that this
may trigger the alarm system or anti-theft devices, e. G. in the radio.
Therefore it is advisable to take precautions or disconnect the battery for testing
in advance.
1. Switch off the engine and turn off all consumers such as light, fan, rear window
heating, booster etc. except of the clock and the radio's storage. Pull the key.
2. Connect the black clamp (3) directly to the negative terminal (NEG, N, -) of
the battery.
3. Connect the red clamp (1) directly to the positive terminal (POS, P, +) of the
battery.
The voltmeter (7) will now display a voltage which depends on the charging
state of the battery. If the displayed voltage is below 12.4 V resp. 6.2 V, the
battery should be recharged before a full test.
If the voltage is still under 12.4 V (6.2 V) after charging, the battery should be
replaced.
If the needle moves to the extreme end of the scale, the battery is connected
with switched polarity!
4. Press the testing switch (6) for max. 10 seconds.
Attention: The housing of the battery load tester becomes very hot during
operation. There is risk of burns.
5. Read the value from the voltmeter (7). Select the suitable line for the CCA
value (D) of the tested battery. Notice in which sector the needle comes to a
stop. Compare the measured value with the table on the next page to identify
the condition of the battery.
6. Finally, note the position of the needle after performing the battery load test for
10 seconds. You will need this value when undertaking the starter test and
detecting the condition of the battery.
Operation
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