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Page 5SKU 91129 For technical questions, please call 1-800-444-3353.
Operation
Testing the Battery
1. Wipe the battery terminals with a cloth to remove any dirt and grease.
2. Make sure the Load Knob (C) is in the off position. Connect the red (positive) Cable
Clamp (A) to the positive terminal (+) on the 12 V battery. See photo on page 4.
3. Connect the black (negative) Cable Clamp (B) to the negative terminal (–) on the
battery.
4. Turn the Load Knob (C) clockwise until the DC ammeter reads 1/2 the Cold Crank
Amp (CCA) rating or three times the amphour (AH) capacity of the battery. The CCA
and AH rating are printed on the battery label.
Maintain load for 15 seconds to simulate an actual load on the battery. After 15
seconds has passed, the unit will sound with a beep.
5. View the DC Volts Meter and read the battery condition. Refer to the “Battery Condition
Analysis” section on the next page.
6. Turn the Load Knob (C) counterclockwise to Off, and remove the Cable Clamps from
the battery.
Note: Freezing temperatures affect the battery test reading. Decrease the battery rating
50 cold cranking amps for each 50°F (10°C) below freezing 30°F (0°C).
Load Knob (C)
Amp Hour Scale
Amps Scale
CCA Scale
Negative
Cable (-)
Positive
Cable (+)
Battery Test: Green
- OK
Red - Replace
State of Charge:
Green - OK
Red - Recharge
Alternator &
Regulator Test:
Green - OK
Red - Low