Vehicle Electrical Equipment (Charging System) Control
When a faulty battery arrives or when installing a new battery, look at the vehicle's electrical equipment (Charging system). The error most likely to come from the vehicle is OVERCHARGE or LACK Charge. While giving full throttle with a normal battery, check if the conjector (regulator) voltage is between min.13.8-max 14.4 volts in a 12-volt vehicle. If it is outside these values, the fault in the vehicle's charging system must be corrected.
The starter or alternator may run out of coal over time. It should be checked at regular intervals.
Measuring the Charge Level
The specific gravity (density) of the acidic water (electrolyte) in the battery is measured with a hydrometer.
It is very important to calculate the electrolyte density value correctly according to the 27 °C temperature. Because the density of an acidic water, only after correcting for the amount of Sulfuric Acid in it, the first decision is made about the state of charge of the battery, according to the density value found.
Measure the open circuit voltage of the battery with tongs (Shunt - resistor) or Electrolyte voltmeter. Compare the voltage value you read with the values in Table-2 and make your final decision about the battery state of charge.
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