Support BMS DR-JC03?

Describe the bug I’m trying gather all things together for: Victron MultiPlus 48/5000/70 + Cerbo GX + Battery LiFePO4 with BMS DR-JC03.

I’ve installed your app, and connected Cerbo GX-USB <-> USB-RS485 Adapter with 3 pins (A/B/Ground) <-> RS485-RJ-45 on battery

On RJ-45(RS485): 1- RS485B 2- RS485B 3- GND (I made this according to this manual. It’s not so suitable, but didn’t find better.)

Am I wrong somewhere?

To Reproduce Steps to reproduce the behavior:

1. Go to Cerbo GX terminal
2. Install dbus-serialbattery
3. Connect the battery
4. See logs: tail -f /data/log/dbus-serialbattery.ttyUSB0/current
5. See error

ERROR:SerialBattery:ERROR >>> No battery connection at /dev/ttyUSB0

Expected behavior Logs shall show success connection.

Screenshots BMS

BMS DR-JC03 Photos

VenusOS (please complete the following information):

• Device type: Cerbo GX
• Firmware Version: 2.92 (latest firmware for 2022-12-09)

Battery/BMS (please complete the following information):

• BMS/Battery type: ??? / LFP
• Cells: 16
• Interface: 2xRJ45-RS485, 1xRJ45-RS232

Additional context

[andkirby]

Contacted with XD Battery company. I was told, it can be connected with their battery (w/o programming). They promised to help to make it work. My hands are itching to see the manual. I’ll bring updates…

[andkirby]

But there are no standard for that.

That’s a shame 😦

You will have to check your battery manual which pins are used.

No manual from XD battery vendor. 😦 🤦

Thanks for this note, L!