Plug the RJ45/RJ11 end of your cable into the (or RS485 port, depending on software version requirements) of the Master Battery (the top battery in the stack linked to the inverter). Connect the USB end to your laptop.
Battery View is a specialized Windows diagnostic tool used for real-time monitoring and troubleshooting of Pylontech lithium batteries
If you cannot obtain Battery View or prefer a modern interface, consider:
Check the exact number of charge/discharge cycles your battery has completed. Battery View.exe Pylontech Download
Switch between 9600 and 115200 to see if the battery responds.
Recent versions like Battery View 3.0.37 (2024) are frequently maintained by users on the Power Forum .
Major distributors like Victron Energy or Effekta often host mirrored versions of BatteryView (Version 3.0.28 or newer is recommended for recent US3000C models). Plug the RJ45/RJ11 end of your cable into
Once connected, you can use these tabs:
Only update your Pylontech firmware if absolutely necessary (e.g., to solve a known bug). Incorrect firmware updates can brick the battery, rendering it useless and voiding the warranty.
: Switch between 9600 and 115200 to see if the BMS responds. Switch between 9600 and 115200 to see if
To connect your PC to the battery, you need a specific communication cable based on your battery model:
Ensure the Pylontech battery is powered on. Open Software: Run BatteryView.exe .
This is diagnostic software. It is possible to change parameters in the BMS using these tools if you dig deep enough. Unless you are an advanced user, do not change settings. Use it to view , to log , and to diagnose . Let the battery management algorithms do their job; your role is simply to ensure the data looks healthy.
If you are looking for the utility to monitor or update your Pylontech batteries, What is BatteryView?
Set the (typically 115200 for newer US series models, or 9600 for older units). Click Open or Connect . Navigating the BatteryView Interface