Measuring battery condition
Easiest way to measure battery level of charge?
Forum Discussion
It depends on the type of battery, and few methods work for all types of batteries.
You can't measure SOC with any accuracy using a voltage measurement on a Lithium-Ion battery.
You can't measure SOC using specific gravity on a sealed battery.
But if you start with what you know is a fully charged battery and use a permanently attached coulometer to measure the power in and power out, it will give you a pretty good idea of your battery's SOC at any point in time.
You can't measure SOC with any accuracy using a voltage measurement on a Lithium-Ion battery.
You can't measure SOC using specific gravity on a sealed battery.
But if you start with what you know is a fully charged battery and use a permanently attached coulometer to measure the power in and power out, it will give you a pretty good idea of your battery's SOC at any point in time.
