Product Manual

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3. Outside, start the vehicle engine and run at fast idle speed.
4. View the DC Volt Meter and read the Alternator & Regulator condition. Refer to the
“Battery Condition Analysis” section below.
5. Turn the vehicle’s engine off, then remove the Load Tester Cable Clamps.
Battery Condition Analysis
LOAD TEST / 15 Sec.
(Display Reading)
BATTERY CONDITION
OK
(Green area)
Battery Capacity is good. May or may not be fully charged. Check
the charge state by testing the Specific Gravity SG) with a
Hydrometer. If SG is less than full charge, check for possible
charging system trouble. Recharge to full lever.
BAD
(Red area)
If the DC Volt Meter needle is failing, the battery is defective or
has a bad cell. For a quick check, turn the Load Knob down,
counterclockwise and note DC Volts Meter reaction. If voltage
recovers to its full potential after only a few seconds, the battery
is probably defective. If the voltage recovers slowly, the battery
may only be run down. Check specific gravity level, recharge,
and retest.
CHARGING SYSTEM
(Alt. & Reg. Test )
If the DC Volt Meter needle reads OK, charging system is
functional. If it falls on the low red or high red areas, charging
system may be malfunctioning.
Starter Motor Test
If starting your vehicle is difficult, you may have unnecessary starter motor draw, which
dramatically shortens battery life. This test identifies starter motor performance.
1. Make sure your engine is running at normal operating temperature, and that the battery
is fully charged and in good condition.
2. Connect the Red Clamp (+) to the positive (+) terminal post on the battery. Connect the
Black Clamp (-) to the negative (-) terminal post on the battery.
3. Turn the Load Knob (C) counterclockwise to the Off position.
4. Disable the engine to make sure the car will not start. Refer to your vehicle’s service /
technical manual.
5. While watching the DC Volt scale, crank the engine briefly to determine the voltage
reading during cranking.