How Many Volts Should My Car Battery Be. Therefore a voltage appears that is higher than usual. The battery voltage should read 124 to 127 volts and as it starts the violated will decline to around 10 volts then spring back to 13 to 14 volts.
With the engine off you should get a reading of 126 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. How to tell if a car battery is bad or dying.
Its not 5050.
Answer 1 of 4. At 110 volts the chances of the battery actually cranking over the engine are very very low. One way is to test the voltage of the battery under load for example with the headlights on. If youre readings are significantly higher or lower than these then it would indicate a fault with the battery andor the alternator.
