Can a bad battery still show 12 volts?
A bad battery could very well produce 12+volts without a load. Rather it is voltage under a load that is important. If the battery is bad, then you would notice the lights going REALLY dim when you try to start the car.Click to see full answer. Similarly, you may ask, what is the voltage of…
A bad battery could very well produce 12+volts without a load. Rather it is voltage under a load that is important. If the battery is bad, then you would notice the lights going REALLY dim when you try to start the car.Click to see full answer. Similarly, you may ask, what is the voltage of a dead 12 volt battery?This is called the “open-cell” or “resting” voltage of the battery. Resting fully charged 12-volt batteries are around 12.8-12.9 volts, and flat dead ones are at 12.0 volts, so 12.4 volts on a resting battery means it’s about 50% charged.Subsequently, question is, can a battery have volts but no amps? – yes, and the battery usually runs with shallow energy or fails to start up or deep cycle as a result of this. A car, of course, can also use the alternator, which gets its energy from the initial voltage and ampere rate of your battery from the initial plugin, which a boat does not have. Similarly, it is asked, can a car battery test good but still be bad? Yes, it could test out okay and still have problems. That is what my batteries did before I replaced them. Someone finally told me that while batteries can test out okay – they can lose some of their capacity for “cold cranking amps”. I replaced them and all was fine again.Is 12.4 volts OK car battery?A car battery is considered fully charged at 12.6 volts or higher. When the battery’s voltage drops, even a small amount, it makes a big difference in its performance. Though not fully charged, a car battery is considered charged at 12.4 volts or higher. It is considered discharged at 12.39 volts or less.
