What does VOLTAGE_DROP exactly?

[wetty]

Hello,
my System is a Multiplus II 5000 with two 18s packs with JKBMS.
SVS - Shared Voltage Sense is off.

Multiplus shows 62.1V which is exactly what I want (18 x 3.45V)
The JKBMS both show 61.92V which is, after measuring it, the correct Value! So Batteries should be charged a little bit more to reach 62.1V

So I to set VOLTAGE_DROP to 0.18V

After restarting the system the values are exact the same.
My question is now, does serialbattery think that the JKBMS Value 61.92V plus the voltage drop 0.18V ist the correct value? And with this switch to float?

Currently the only way to get JKBMS/my Batteries to 62.1V, is to switch SVS on.

Or should I change the settings in my Multiplus to set it to a higher voltage?

[mr-manuel]

Check this https://github.com/Louisvdw/dbus-serialbattery/blob/master/etc/dbus-serialbattery/battery.py and search dor VOLTAGE_DROP. If you do not understand it from the code I can explaint it to you.

[mr-manuel]

I just rebuild the release since it contained a little typo, in case you want to download and install it. The version number is the same.

[wetty]

Your Version works like expected :-) Perfect!
I just have to increase to voltage drop a little bit to finally reach 62.1V. But maybe I will first wait another hour to see if it is reached.
See my values in a screenshot from bei homeassistant Dashboard

[wetty]

Slightly increase the voltage drop and it looks perfect. Just waiting for the switch to float Voltage

[wetty]

First Battery switched to float mode. Mission Completed!

Thanks a lot.

[mr-manuel]

You're welcome