been fully recharged. Connect the KFZ-POWERCHECK as shown in figure 1. Switch the ignition of your car on and run
as much electrical equipment as possible (headlamps, windscreen wipers, rear screen demist, etc.) for approx. 3
minutes. If the battery is faulty, the green LED ”Battery power test” (Batterie Belastungstest) will turn off during
the test. When the green LED shows OK., the battery should have a useful life left.
CAUTION:
Do not carry out these tests for more than a maximum of 6 minutes. Stop the test immediately if the green LED
turns off during the test. If the battery passes the test, but cranking is slow or laboured, then this is an indication of
a fault elsewhere, such as solenoid, earth strap, starter motor or battery connections. A jammed starter motor will
give a failure indication almost immediately, even with a good battery.
4. CONTROL OF BATTERY CHARGE WHEN CHARGING WITH EXTERNAL BATTERY CHARGERS
A battery charger should not be allowed to overcharge a battery. This will result in the rapid loss of battery
electrolyte and the need for frequent ‘topping up’.
The charging of ‘maintenance free’ and other sealed batteries should be carefully carried out, either by a voltage
controlled battery charger or by KFZ-POWERCHECK used together with a conventional non-automatic battery
charger.
Ensure that the battery charger is switched off at the mains. Connect the battery charger and KFZ-POWERCHECK to
the battery as shown in figure 2. Switch on at the mains. (NOTE: Avoid sparks: switch on the battery charger after
connecting the battery charger to the battery). Discontinue charging as soon as the top light labelled “Alternator
defective / Overcharging” (Lichtmaschine defekt / Überladung) comes on. Switch off the battery charger before
disconnecting.
SPECIFICATION:
Alternator overcharging (Lichtmaschine defekt / Überladung): LED on at 14.8V+/-0.1V and above. Alternator OK.
(Lichtmaschine OK.): LED on at 13.8V+/-0.1V, off at 14.8V/-0.1V. Battery full charge (Batterie-Ladungs-Zustands-
Anzeige): LED 75-100% on at 12.7V+/-0.05V and above; LED 25-75% on at 12.45V+/-0.05V, off at 12.7+/-0.05V;
LED 0-25% on at 12.2V+/-0.05V, off at 12.45V+/-0.05V. Battery power test (Batterie Belastungstest): LED on at
9.8V/-0.1V and above. Supply: 6 to 16V. Protection: Supply to 30V for 1 second. Fully protected against reverse
connection and short circuit.
Summary of Contents for KFZ-POWER-CHECK
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