How Many Volts In Car Battery. All Makes Models. You can usually visually check this parameter with the inner electric light system of your machine.
A car battery should read a minimum of 126 volts and when your engine is in operation the battery should record a voltage value within the range of 137 147 volts. In a running engine the voltage reading should be between 135 to 147v and a reading higher or lower than this means there are possible problems with the battery or the alternator. But remember that even if the battery has 12 volts rated voltage and can hold 15 volts at max it doesnt mean the voltage will remain constant.
But the voltage is not a fixed number.
With the engine off you should get a reading of 126 volts. Therefore a voltage appears that is higher than usual. When a car drops. Answer 1 of 4.
