Forum Discussion
theoldwizard1
Feb 22, 2019Explorer II
It is difficult to measure battery State Of Charge just by voltage. If you want to do it accurately get a good battery charger, disconnect the battery from all load, charge according to directions. Remove the charger and let rest for about 60 minutes. Confirm SOC with hydrometer and then check voltage.
The best SOC monitors continuously monitor all current flowing in or out of a battery via a shunt. They work under the assumption you are starting with a battery at 100% SOC when they are first connected. You should probably re-calibrate every 6 to 12 months.
The best SOC monitors continuously monitor all current flowing in or out of a battery via a shunt. They work under the assumption you are starting with a battery at 100% SOC when they are first connected. You should probably re-calibrate every 6 to 12 months.
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