How Many Volts Should My Truck Battery Have. A reading of 1265-1277 volts means your battery has a full charge. The battery is not charged and could be bad if the reading is 119 volts or lower.
It should be somewhere between 128 volts fully charged and 121 volts 50 percent charged. If the voltmeter reads between 14 -15 volts then the battery is normal. The main function of a car battery is to start your car.
If the battery is good the reading should actually be higher than 12 volts.
The main conditions for a load test are at least 96 volts. Measure and Analyze When the probes touch the terminals while the car is off and the battery is resting the multimeter display should show a reading of 122 to 126 volts full charge. A reading of 1265-1277 volts means your battery has a full charge. If you dont have a multimeter to tell you the voltage of your battery you can do a test of your electrical system by starting the car and turning on the headlights.
