4. BAD (RED LED LIGHT): Battery may be defective (e.g. a bad cell).
5. Digital LED code display "c.b":
a) If the battery volts is under 12.3V, "c.b" (Charge battery) will be shown on LED display.
Please fully charge the battery before test. After charging, please wait 15-30 minutes to
let the voltage stable & make load test. If reading is still below 12.3V with "c.b", the
battery should be replaced immediately.
GB-1.V2
b) If the battery volts is above 13.2V, "c.b" (Charge battery) will be shown on LED display. While
in making load test connected with battery from vehicle, please turn off the engine & turn on
the head light in a second to wait the battery voltage under 13.2V, and then turn off the head
light to test the battery.
c) In a battery that has just finished its charging cycle, the voltage is unstable. Therefore it is
recommended to wait for 15-30 minutes, until the voltage is
below 13,2 V, before performing a load test.”
TEMPERATURE COMPENSATION 1 STEP = 50 cranking amps.
DECREASE BATTERY RATING
BY:
If the tester indicates poor battery condition, allow the battery to stabilize for a few minutes
and check the open circuit voltage by voltmeter. This is a good measure of the percent charge
in the battery. The battery is considered charged if it measures 75% or more. If it failed the load
test with 75% charge, it should be replaced. If the battery charge measures less than 75%, it
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