Voltage Fully Charged Car Battery. Its power drops from 100 to 25. 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.
The actual open circuit voltage of a 100 charged battery is between 1270v and 1280v because each cell is approximately 213v. This data and the way it relates to the. 1124 means you have a dead battery.
It means that when fully charged the battery can deliver one amp for 48 hours two amps for 24.
When Fully Charged How Many Volts Should A Car Battery Have. A fully charged car battery voltage should be 126v or above this is with the engine off. I put together the following battery state of charge chart which indicates the state-of-charge percent as it relates to battery voltage or specific gravity. The ideal car battery voltage with the engine running is between 137 and 147V.
