Learn why your EG4 18kPV inverter is derating due to high battery temperature and how to fix it.
High battery temperatures can be caused by excessive charging, poor ventilation, or environmental factors. It's important to monitor battery conditions regularly.
To prevent derating, ensure proper ventilation, avoid overcharging, and maintain optimal battery health. Regular maintenance checks can help.
The EG4 18kPV inverter is designed to protect both the battery and itself from damage due to high temperatures. When the battery temperature exceeds safe operating limits, the inverter enters a derating mode to prevent overheating and potential failure. This condition can be triggered by high ambient temperatures, inadequate cooling, or faulty sensors. The inverter continuously monitors battery parameters, including voltage and temperature, to ensure safe operation. If the internal resistance (RISO) of the battery increases due to heat, it can lead to reduced efficiency and performance, prompting the inverter to limit output.
Users may notice a significant drop in inverter output, indicated by reduced power generation displayed on the monitoring app. The inverter may also show LED patterns that signal derating, often accompanied by alerts related to battery temperature. In some cases, an alert may specifically mention high battery temperature, prompting immediate attention.
Always consult a licensed electrician or certified solar installer when troubleshooting electrical components to ensure safety and compliance with local codes.
To prevent this issue in the future, ensure that the battery bank is installed in a well-ventilated area, away from direct sunlight and heat sources. Regularly check and maintain the cooling systems, and periodically inspect the BMS settings for accuracy. Consider implementing temperature monitoring alerts to proactively manage battery conditions.