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A 12 volt battery voltage chart provides a reference guide to determine the state of charge (SOC) based on the measured voltage. It helps users identify whether the battery is fully charged, partially charged, or requires immediate recharging.
The 12 Volt Battery Voltage Chart is a useful tool for determining the state of charge (SOC) of your battery. The chart lists the voltage range for different levels of charge, from fully charged to fully discharged.
A chart of battery voltage versus State Of Charge, SOC, percentage and Specific Gravity for 6, 12, 24, and 48 volt battery banks.
This chart provides a visual representation of the power level of your battery. You can also use a multimeter to measure the voltage of your battery. A fully charged 12-volt battery should read around 12.6 volts. If the voltage drops below 12.2 volts, it is time to recharge your battery.
AGM batteries: 12.8-13.2 volts is 100% charged. Gel batteries: 13.5-13.8 volts fully charged. So, check what battery type you use, and its ideal voltage range when fully charged. But for most 12-volt batteries, 12.6-12.8 volts is considered fully charged.
When the engine is off, a fully charged car battery should have a total voltage of around 12.6 to 12.8 volts. When the engine is running, the alternator increases the battery’s voltage to between 13.7 and 14.7 volts to keep it charged. Voltage is a key indicator of the battery’s state of charge.
For instance, a voltage reading of 12.2 volts or lower indicates that the battery is discharged and needs to be charged. Meanwhile, a voltage reading of 12.4 to 12.7 volts indicates that the battery is fully charged and in good condition. Measuring Car Battery Voltage.