Problems related to battery charging and discharging of SHxxRS and SHxxRT and the guidance of troubleshooting Battery charging and discharging problems can occur in residential energy storage inverters. There are mainly three cases: battery does not discharge, battery does not charge, and battery neither charges nor discharges.
For abnormal battery charging and discharging, the following troubleshooting work is required. 1. Check whether the air switch between the battery and the energy storage inverter is closed (it is recommended to use a multimeter to test the battery voltage on the inverter side.
Check in the Advanced Settings and Battery parameters if the minimum battery SOC is not set to 100%. 5. Check in the Advanced Settings and Energy Management Parameters if the Inverter Discharge Start Power is not set to the nominal power of the inverter.
1. Check whether the air switch between the battery and the energy storage inverter is closed (it is recommended to use a multimeter to test the battery voltage on the inverter side. Because the battery voltage value displayed on iSolarCloud is obtained through communicating with the battery. 2. Use iSolarCloud curve analysis interface.
New battery’s SOC can be estimated with knowing manufacturing date and storage time (Table 2.). If: the customer needs to add more battery modules (for example, add two battery modules to an existing SBR096). one battery module is faulty and new battery module needs to be replaced.
2. Use iSolarCloud curve analysis interface. Check the time period when abnormal battery charging and discharging occurs. 3. Check in the Advanced Settings, whether the Energy Management is set to Self-consumption Mode. 4. Check in the Advanced Settings and Battery parameters if the minimum battery SOC is not set to 100%.
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