Westfalia 15 30 15 Original Instruction Manual page 21

Load Test
after 10 Seconds
Green Zone OK
Yellow Zone WEAK
but Stable
Red Zone BAD
Condition
Allow the battery load tester to cool down for at least 1 minute before undertaking
new tests. Do not perform more than 3 tests within 5 minutes.
Operation
Battery Condition
The capacity of the battery is in good condition.
The battery is possibly, but not necessarily, fully
charged. Measuring the SG of the battery acid will
give a precise indication of the battery condition. If
the battery is not fully charged, it is advisable to
check the charging system.
The capacity of the battery is insufficient. The
battery is either defective or partly discharged.
Measuring the SG of the battery acid will give a
precise indication of the battery condition.
The battery is probably tired or massively
discharged.
Observe the volt meter after releasing the testing
switch. If the voltage raises quickly to 12 V or
more, the battery is probably tired. If the voltage
slowly rises, the battery is probably massively
discharged.
Measuring the SG of the battery acid will give a
precise indication of the battery condition.
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