SOK Release our new BMS at the end of 2021, with bluetooth function.
few steps to DIY a 12V LiFePO4 Battery Bank with SOK BMS

P means positive, N means negative
Connect the Bus bar and balance wires.


connect the N1 with BMS B-, connect the P4 to your inverter/charger directly.
connect the BMS P- with your inverter /charger

Last, get a location for the low temperature sensor.
Make sure you get the latest and working edition of XP786 from this site. It is a direct download link and saves you from fake apps. Install the APK Find the downloaded file in your phone’s File Manager or Downloads. Start installing it. Don’t forget to allow app installation from unknown sources. Visit More