How Many Volts Is A Good Car Battery. The modern standard worldwide is 12V but this parameter is changeable. When Fully Charged How Many Volts Should A Car Battery Have.
Normally a battery will be tested by making sure it is fully charged and then able to deliver a CCA current for a certain time - perhaps 1 to 2 minutes. Here is how to calculate the watt of a car battery-Calculation. A fully charged battery will usually show a voltmeter reading of approximately 126 to 128 volts.
Suppose a car has 60 amps per 10 hours and 12 volts.
Suppose a car has 60 amps per 10 hours and 12 volts. When the engine of your vehicle is running the voltage of your car battery should be between 135 and 147 voltsDuring that time the alternator of your vehicle is busy charging the battery. Recharge the battery and test it again later to see if its holding a charge. This voltage range means the battery is in good condition for starting the vehicle.
