英国采购需求：磷酸铁锂电池BMS、BMS管理系统、BMS自动化系统、锂电池BMS、18650电池BMS、主动式电池均衡器

We are experiencing significant issues with the Smart BMS app. The app has consistently displayed a blank screen and has poor connectivity with the batteries. This persistent problem has made it challenging to monitor battery performance effectively, leading to frustration and inefficiency. Additionally, we've noticed that the state of charge (SOC) readings are frequently inaccurate, which complicates our operations further. We would appreciate any solutions or troubleshooting tips you could provide to address these issues. Your prompt assistance would be greatly valued, as we are keen to resolve these matters quickly.