Hi Jason, Did you resolve the High Battery Voltage alarms? I got the same alarms after updating to v3.42 and still seeing them on v3.50 (Colour Control GX). With v3.50 the PV Inverters now appear in the device list and display on the dashboard and CCGX display. Thanks

This is ongrid setup and BMU is configured as ongrid. There are 8 modules, lot of reserve for 16 kWp AC+DC coupled system.

Guys, do you have a way to control the overall charging current? The DVCC current limit only works for the MultiPlus, but not for the MPPTs. I made an algorithm that limits the charging current when finishing charging, as you suggested, but I found only the DVCC current settings in Node-RED.

[image] Oldrich Sveda: Do you have a way to control the overall charging current? The latest iteration of my Node Red flow doesn’t modify the DVCC Charge Current Limit anymore, since this value is ignored in an ESS system where excess DC PV is exported to the grid. My new approach modifies t…

@BartChampagne could you please share your Node-Red flow?

My flow is highly customized for my particular setup so at least I’ll have to document the tweaking knobs and add a disclaimer. Will check to do that later. Poke me again if I haven’t replied by end of this week.

Badly balanced, or balancer isn’t working or bad cells.

I have the BYD premium LVS12 (3 modules of 4kwh) and I always get the warning everytime the BYD battery reaches 100%, going away after some minutes even and battery fully charged: [image] [image]

Can you see the cell number with highest voltage? @ 60-70% SOC is this the same cell? Seems to me the balancer isn’t working, resulting in one cell more charged than the others. It can also be a bad cell but you first have to top balance (within a few mV) before you can check.

[image] DiegoPombo: I have the BYD premium LVS12 (3 modules of 4kwh) and I always get the warning everytime the BYD battery reaches 100% A high cell voltage warning when BYD batteries are nearly full is somewhat normal, as long as its a warning and not an error. What helps is setting the DVC…

In BYD manual nothing about how to adjust balancing start voltage.

High battery (cell) voltage alarm BYD

Q&A and troubleshooting

BartChampagne (Bart Champagne) 5 August 2025 20:12 23

A high cell voltage warning when BYD batteries are nearly full is somewhat normal, as long as its a warning and not an error.
What helps is setting the DVCC Max Charge Voltage to 57.6V.

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High battery (cell) voltage alarm BYD

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