How Many Volts Should A 12 Volt Battery Read. Seeing 129v after a full charge shouldnt be used as the basis of a fully charged battery voltage but only as the initial surface charge. So a 12volt battery will measure at about 129 volts when its fully charged and about 114 volts when it is fully discharged.
If you have additional questions about your batteries or charger check out our Battery Charger Frequently Asked Questions page or learn about how amperage works in a golf cart. A fully charged car battery has 126 volts. It should be somewhere between 128 volts fully charged and 121 volts 50 percent charged.
As a battery is charged the indicated voltage increases and as discharging occurs the indicated voltage decreases.
Although a battery is called 12 volt battery its voltage varies from about 12. Use A Multimeter To Test Motorcycle Battery You. What should a 12 volt battery read when fully charged. So a 12volt battery will measure at about 129 volts when its fully charged and about 114 volts when it is fully discharged.
