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rating.
C. If the amp hour rating is provided, load test amps should be 3 times the hour
rating.
D. If the CCA rating and amp hour rating are not available, refer to battery
catalog for recommended CCA rating.
E. Sometimes the rating cannot be located, in that case the engine size may be
used as a guide to determine the battery's ampere rating. However, it is
recommended to use the manufacturers recommendations, whenever they
can be located.
Engine Size
Cubic Inches
Small
100 to 200
Medium
200 to 350
Large
350 to 500
4. LOAD TEST THE BATTERY
A. The battery must have at least 75% state of charge before load testing.
B. The battery should not have been heavily used or tested within the last 10
minutes.
C. Connect Tester leads to battery (＋) and (－) terminals. Read AMPS position.
Make sure load knob is in the OFF position before connecting.
D. Apply a load to the battery equal to 1/2 of CCA rating.
E. Hold load for 15 seconds.
F. Read voltage at the end of the 15 seconds and then turn off load.
G. Compare reading with PASS/FAIL voltage chart on side of tester, or use chart
shown as below to compensate for battery temperature.
At Battery Temperature Of
70℉( 21℃)
60℉( 16℃)
50℉( 10℃)
40℉(
30℉(－ 1℃)
20℉(－ 7℃)
10℉(－12℃)
0℉(－18℃)
Cu. Centimeter
1600 to 2400
2400 to 5600
5600 to 8000
Not Voltage Should Not Drop
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5℃)
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4
Battery load Amp Rating
100-150 Amps
125-200 Amps
175-300 Amps
Below
9.6 Volts
9.5 Volts
9.4 Volts
9.3 Volts
9.1 Volts
8.9 Volts
8.7 Volts
8.5 Volts
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