Lead Acid battery data. Please note this data is provided for reference only and is subject to many variables in practice.

BCI standard for SoC estimation of a 12V flooded lead acid car battery.

Test the battery at room temperature. Allow 4-8 hour of rest after charge or discharge.

12.65V         100%
12.45V           75%
12.24V           50%
12.06V           25%
<11.89V    Discharged