It varies by manufacturer and battery.
It is there to keep the battery fully charged.
1.265
2.2 v when fully charged.
Normally in off load, its about 12.6 volts. 12.6 is correct for a fully charged battery. 12.4 it is 75% 12.2 it is 50% 12.0 it is 25%
If you need to jump start the car then the battery may be fully charged but it is defective and needs replacing. A full charged battery will read 12.6 volts at the posts with the engine not running. 12 volts indicates the battery is only 25% charged.
No, not if the battery is fully charged.
It is a 12 volt battery. Fully charged it will read 12.6 volts with a digital volt meter.
Starter solenoid? Battery not fully charged?
Make sure it is fully charged and store it in a cool, dry location if possible. It will stay fully charged for 6 months with no problem.
Fresh fully charged battery and fresh gasoline
Do you wish to jump a car with a deep-cycle battery, or do you wish to charge another battery using the deep-cycle battery?