Translations:Energy storage/24/en

1. The ideal method to measure the state of charge of a battery is to use a device called a shunt. A shunt is a device that can measure the amount of current flowing in and out of battery to estimate its available capacity.
2. Disconnecting all of the loads and charging sources and then waiting three hours to let the voltage stabilize.
3. The state of charge of a flooded lead acid battery can be taken using a specialized device called a hydrometer that takes a measurement of the electrolyte solution inside the battery. These devices are not available everywhere and if used improperly can be hazardous as the electrolyte solution inside a battery is highly acidic.