12 Volt Car Battery Full Charge Voltage. The ideal car battery voltage with the engine running is between 137 and 147V. 1245-1254 volts means you have a 75 charge 1224-1229 is 50 charged and 1199-1206 volts is 25 charged.

If the reading is 1245 volts or less the battery is low and needs to be recharged. After you have done these you wont still know if your battery state if you dont understand the outcome of the test so. Ad Check Current Battery Specials On Any Make Or Model.
Voltage while under discharge Battery State of Charge SOC in Percent Battery Voltage in VDC 90.
Ad Shop Our Wide Selection Of Batteries Bulbs Chargers Device Repair Services. Although a battery is called 12 volt battery its voltage varies from about 12. As a battery is charged the indicated voltage increases and as discharging occurs the indicated voltage decreases. This is because car.

