It varies by manufacturer and battery.
With a fully charged battery (12.68 volts) and engine running at idle with no accessories on, 14.5 volts. You will not get a accurate reading if the battery is not fully charged.
Fully charged battery should have 12.6 volts. 75% charged 12.4 volts, 50% charged 12.2 volts, & 25% charged 12.0 volts.
Fully charged it should read 12.6 volts with a digital volt meter. 12.4 = 75% charge, 12.2 = 50%, 12.0 = 25%.
Depends on the battery. It is listed on the battery as Cold Cranking Amps (CCA).
About 11,000
To charge a car battery you need aproximatly 8000 amps To charge a car battery you need aproximatly 8000 amps
A battery float charger is intended only to keep a fully charged battery from losing its charge. It will NOT work to charge a battery that is discharged or damaged. Check the voltage of the battery to be charged. Do not use charger if the battery voltage is less than 9.6 volts.
Amps Required to Charge a "Car" BatteryIt depends on the condition ["health"] of the battery, the charge condition ["charge state"] of the battery, and how fast or slow one wants a full charge to take.For example, an almost fully charged auto battery can be brought up to full charge with a one Ampere [1 Amp] "Trickle Charger" within 24 hours or less.On the other hand, a 1 Amp Trickle Charger WILL NOT charge a battery which is 90% discharged.Depending on many variables, a 10 Amp charger will restore a 99% discharged auto battery [in good health/condition] to full power in about 3 to 5 hours, based on my personal experience. For years, I've used so-called "automatic" chargers that either turn off, or "throttle-back" on the Amperage to a trickle charge rate, when the battery has fully charged. That's why I'm not sure of the exact time to fully charge.
To determine how many amps a battery can handle, this information should be on the battery itself. You can also get a battery tester to determine amperage.
12.6 volts as read with a digital DC volt meter.
A fully charged 12 volt battery will output 12.6 volts are read with a digital volt meter.
12.6 volts at full charge. During charging at least 13.8 volts are applied to the battery.