15 second test duration may be initiated by depressing the TEST button for a good three
seconds, until the yellow " 15s" LED lights, then releasing it. The red LED above the load
resistor symbol should light for 15s during the 15s test.
7) Immediately the red LED above the load resistor symbol indicates a test has begun, look
at the LEDs on the TEST Voltmeter LED panel to the right of the TEST start button to
see how many have come on.
8) If all ten LEDS (or at least nine) light and remain on during the test, the battery is
sufficiently charged and able to sustain starting load for at least the duration of the test.
This indicates a GOOD battery.
9) If 7 to 10 LEDS indicate momentarily just as the test begins, but the LEDs then
progressively and rapidly extinguish, the battery is significantly discharged.
10) During the test, the approximate charging time required to restore the battery to a
starting condition can be read off the two time scales above (ambient temperatures
exceeding 15°C/60°F) and below (colder ambients) the Test Voltmeter LEDS. The
approximate required charging time is that indicated above (or below if colder than
15°C/60°F) the highest LED which lights (the furthest to the right).
11) If the battery is severely discharged, it is possible that it lacks sufficient power to register
on the test scale. If after depressing & releasing the TEST button the red LED "Charge
min 4h" lights, it is necessary to first charge the battery for at least 4 hours, at the charge
current indicated for that battery on the range selection table on the decal above the
control panel. (See step 2 above). A TEST should then be conducted.
12) Testing involves the withdrawal of significant energy from the battery which must then be
dissipated in the form of heat. Following each test the tester wilI be disabled for a period
to allow the tester and the battery to cool, thus avoiding potential damage to either by
immediate and repetitive re-testing. The periods of disablement are 20 seconds following
a 3s test and 60 seconds following a 15s test. Disabled periods are indicated by the red
LED above the egg-timer symbol.
13) After charging a battery for the indicated charge time it is ESSENTIAL to re-TEST the
battery to determine if it has achieved a starting capability. During this re-TEST:
a) if at least nine LEDs light at the beginning of the test and remain on until the end of the
test, the battery should be capable of sustaining the starting load for at least the
duration of the test, indicating a GOOD serviceable battery.
b) if the number of LEDs which light immediately the TEST begins decrease by more than
two LEDs during a 3s test or by more than four LEDs during a 15s test, the battery may
well have a degree of internal damage. Set the timer to at least the charging time
indicated by the highest LED on at the end of the TEST, and charge the battery again.
Then TEST again. If the TEST result is again similar to that described above, the
battery is unserviceable.
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