question

I tried connect only one of batteries and problem still the same - it charges battery only about 15A. So that means something incorrect set in MP? (I think if problem in batteries, it will be charging 2 batteries 30Amps)

Any ides what it can be? I run out of options.

Thank you a lot for every help

From recent learning

Assuming correctly connected with the Victron type A cable to the GX.

Batteries control charge rate and overrule what set in the Multiplus, unless the multiplus has a lower setting than the batteries want.

In the advanced section of VRM you can turn on battery temperature and show Charge Current Limit ( CCL). This is the value the battery sets. The battery will reduce charging when temperature low.

CCL Is showing 40Amps, but only charges max 15.

I tried connect only 1 battery and it also charges only 15A. So if this setting should be in battery it should charge two batteries by 30Amps, or?

But I am not sure it I understant you correctly, please can you give me exact procedure of where and what should I set?

Thank you so much

I don't see any solar chargers in that device list.

Does the console/VRM show any ESS status messages or words like "sustain"?

How are you running an ESS without PV? Is there a PV inverter?

What are your ESS settings in the GX and for the assistant?

Have you followed the pylon doc to the letter?

https://www.victronenergy.com/live/battery_compatibility:pylontech_phantom

What are your DVCC settings?

Does the inverter have an input current limit? What is the charge limit set to?

Not enough to go on.

Your system is either incorrectly configured, or that is all the batteries want to charge.

VRM shows any messages.

Ther is grid-tied PV inverter, but have not installed smartmeter on him.

This problem persist even if ESS is in “keep batteries charged” mode, also in “optimized mode” even when PV inverter is feeding for example 4000W to grid.

You have manually limited the charge voltage in DVCC. That will prevent charging, please remove that limit and try again. That is a setting only used to help severe balancing issues and is not for permanent use.

At 1.2V below the required charge voltage, it will never properly charge.

This is why following the manual to the letter is important.

I removed charge voltage limit but nothing changed

Hello guys, thank you so much for your answers. The problem was probably some bug. In VeConnect I had set DC current 140A. I changed this value to 120A (what is enought) and it started working. I set it back to 140A and it is still working - so that means there could be some SW error?