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Battery Temperature Compensation
Note: Never load test a cold battery. If battery is cold, allow it to warm up by running
the engine for a few minutes before testing in a ventilated area.
Open Circuit Voltage
If the load indicates poor battery condition, allow the battery to stabilize for a
few minutes and check the open circuit voltage by voltmeter:
a. Battery is considered charged if it measures 75% or more. If it failed
the load test with 75% charge, replace battery.
b. If Battery charge measures less than 75%, it should be charged and
load tested again. Replace battery if it fails again.
c. The values in the following table are for a 12V battery. Divide values in half for a 6V battery.
Amps & Volts Gauges
• Indicates Current or Load applied to battery for test.
• Shows scale in AH (Amp-Hour) in CCA (Cold Crank Amps)
• Indicates Reversed Polarity when clamps are connected to the battery in reverse polarity.
• Shows 3 scales of battery voltages: 6V (0-7.5V), 12V (0-15V), and 24V (0-30V).
• Shows Battery Test result where Red is FAIL and Green is PASS.
• Shows the Battery State of Charge where Red is recommended for recharging the
battery and Green is the acceptable state to proceed with a Load Test
Page 6
Battery Temperature
+20°F
0°F
-20°F
Open Circuit Voltage
11.7V or Lower
12.0V
12.2V
12.4V
12.6V or Higher
AMPS Gauge
Volts Gauge
For technical questions, please call 1-888-866-5797.
Crank Amps Loss
50A
100A
150A
% of Charge
0%
25%
50%
75%
100%
Item 58933
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