Case 435 Repair Manual page 222

8. Turn the load control knob until the ammeter
indicates the specified load. Keep the load for 15
seconds and read the voltmeter. Turn the load
control knob to OFF.
9. Compare the test reading between the temperature
and the minimum voltage electrolyte data below.
21 °C (70 °F) and above / 9.6 volts
16 °C (60 °F) / 9.5 volts
10 °C (50 °F) / 9.4 volts
4 °C (40 °F) / 9.3 volts
-1 °C (30 °F) / 9.1 volts
-7 °C (20 °F) / 8.9 volts
-12 °C (10 °F) / 8.7 volts
-18 °C (0 °F) / 8.5 volts
10. If the test result is equal to or more than the voltage
shown, the battery is in good condition.
11. If the test result is less than the voltage shown,
discard the battery.
DISTRIBUTION SYSTEMS - ELECTRICAL POWER SYSTEM
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