Discover why your Bluetti AC300 shows 0% SOC while powering loads and how to fix it.
0% SOC indicates the battery is perceived as empty. However, it may still provide power due to a calibration issue.
To recalibrate, fully charge the battery, then discharge it completely before recharging again to reset the SOC readings.
The state of charge (SOC) is typically measured by the Battery Management System (BMS) through voltage sensing across the battery cells. If the inverter detects a SOC of 0%, it may indicate a malfunction within the BMS or an error in voltage reporting. The inverter may have triggered a fault due to incorrect readings, which can occur from issues such as poor connections, software errors, or sensor calibration problems. Additionally, if power draw exceeds the inverter's rated capacity, it may misinterpret the available energy, leading to a false SOC reading.
The Bluetti AC300 displays a 0% state of charge (SOC) on its screen while still powering connected loads. The LED indicators may flash erratically, and the monitoring app shows no charge, despite the device functioning normally. Users may notice that the inverter remains operational, supplying power to devices, which contradicts the SOC reading.
Always consult a licensed electrician or certified solar installer when dealing with electrical components to ensure safety and compliance with local regulations.
To avoid future SOC display issues, regularly maintain connections and inspect wiring for wear. Ensure firmware is kept up to date and consider performing periodic voltage calibration checks. Additionally, avoid overloading the inverter beyond its rated capacity to prevent misreporting of SOC.