Hello,
Does anyone know why the MPPT is limiting the voltage to 52.40V?
It says limited due to BMS but BMS is reporting 58.4V as the limit.
Battery will not charge above 35%.
Thank you
asked
Pylontech (MPPT) limited to 52.40V
@mvader (Victron Energy) Is there anyway to remove the 52.40V limit and it follow the BMS voltage? I am happy to terminal in and edit files.
That's what pylons are limited to, so if you have a third party BMS spoofing a pylon you will be limited to that by DVCC. 58.4V definitely isn't a pylon so presumably some DIY/3rd party concoction off the compatibility list.
Yeah, it is not a pylontech battery but is using pylon protocol. It is a 16S pack not 15S like the pylons.
Best (if you can) set it to spoof a different BMS on the support list.
The battery is a black box, I unfortunately can't change any of it's settings.
I found the file.
"/opt/victronenergy/dbus-systemcalc-py/delegates/dvcc.py"
You can edit the file to increase the voltage. I have edited up to 58.00V and now I can change the DVCC menu to set the voltage I would like.
Thanks @nickdb for clarifying the cause.
Hi, new to Victron here.
Have the same problem, my battery is 16S, spoofing the Pylontech protocol, so the MPPT will not charge (above 52.4V).
Could you please share directions on how to override BMS setting on MPPT 250/70? I do not know how and with what to terminal into the Victron system (mppt? gx?), could you please suggest the safest way and mod?
I do not want to cancel completely control from battery BMS, it is nicely integrated into VRM. Alternatively, how can I exclude only MPPT from BMS control (I have an EasySolar II GX)?
TIA
