Design of the VRLA Battery Real-Time Monitoring System Based
The system is based on the ZigBee wireless communication module for collecting voltage, temperature, internal resistance, and battery current in real-time. A general packet
In Ref., real-time monitoring of multiple lead-acid batteries based on the Internet of things is proposed and evaluated. The proposed system monitored and stored parameters that provide an indication of the lead-acid battery's acid level, state of charge, voltage, current, and the remaining charge capacity in a real-time scenario.
Lead-acid battery is a type of secondary battery which uses a positive electrode of brown lead oxide (sometimes called lead peroxide), a negative electrode of metallic lead and an electrolyte of sulfuric acid (in either liquid or gel form). The overall cell reaction of a typical lead-acid cell is:
Counting (CC) method. Several indicators were displayed on the battery monitoring system, i.e. the battery voltage, current and the percentage of SOC value. The CC method was selected due to its accuracy in determining the SOC. The accurate SOC is a crucial parameter required in battery monitoring and management system [7 - 9].
It is common knowledge that lead-acid batteries release hydrogen gas that can be potentially explosive. The battery rooms must be adequately ventilated to prohibit the build-up of hydrogen gas. During normal operations, off gassing of the batteries is relatively small.
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