ESP AUDI A4 1997 B5 / 1.G Battery Workshop Manual

The electrolyte level must reach the internal
electrolyte level indicator (lip of plastic flange).
This corresponds to the external maximum line
on the battery case.
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27-20

Load test results

The severe load (ohmic resistance) during this
test (high current draw) causes the battery
voltage to drop. If the battery is in good
condition, the voltage value will only drop to the
minimum voltage. The minimum voltage varies
and depends on battery capacity and cold
cranking amps. Cold cranking amps is
understood to be the capacity of the battery in
cold weather. Batteries with high cold cranking
amps are especially important in vehicles with
high compression engines.
If the battery is faulty or has only a weak
charge, the battery voltage will drop off very
quickly "voltage collapse" (voltage below 9.0 V).
After the test is completed, this low voltage will
last for a longer period of time and the voltage
will increase only very slowly. Such a battery
will no longer reach a usable voltage (no-load
voltage) Page 27
-12
.

A battery with the faults described above does
not have the power reserve of an undamaged
battery and must be discarded.
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