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• Attach the pole pliers polarity with the insulated terminals of the
battery and gently shake the pole pliers for a secure contact
(upper oxidation "scratched-off").
• Please observe the following table. It specifies the minimum vol-
tage of the battery, during start process with the starter (lower line
= cranking) activated or without starter (upper line). However, the
values depend strongly on the vehicle type, cylinder capacity etc.
The table’s specifications apply for vehicles with a cylinder capa-
city lower or equal to 3600 cc. For motors with more than 3600
cc, take the nearest lower voltage value
• the machine (engine) and read the voltage value during the star-
ting process.
Compare the value with the following table. If the value is sub-
stantially lower than the "cranking” voltage, either the starter is
defective or there is a bad cable connection (transmission resi-
stance) or the battery is too small (under-sized) for the motor
vehicle.
Load Voltage 10,4 10,6 10,8 11,0 11,2 11,4 11,6 11,8
Min. Cranking Volts 9,7 10,0 10,3 10,6 10,9 11,2 11,4 11,6
Example: The on-load voltage without starter is 11.0 V. During start,
the voltage collapses to approx. 10.6 V. The motor’s
cylinder capacity is 3600 cc or less. If the cylinder capaci-
ty lies above this value, the voltage may not collapse
below 10.3 V* (larger starter currents / performance).
Additional information about lead batteries!
• The starting power (capacity) of a fully-charged battery drops to
under 70% at minus temperatures.
• Most damage to lead batteries comes from overcharging.
• "Warm" batteries are fully-charged at a faster rate than cold bat-
teries.
• every battery loses it’s charge. The discharge current is lowest
with maintenance-free batteries.
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