Being new to this forum, I did not find an answer to my question / issue and hope somebody can help me.
TL;DR; What can I do to prevent a MP2 to discharge a fully charged battery when I lower the DVCC Maximum Charge Voltage?
I am having a pretty standard ESS setup with 1 MP2 and a Seplos Lifepo4 battery.
As I understood that DVCC doesn’t work perfectly with the Seplos BMS as the smart BMS (meaning the system always charges to DVCC Maximum Charge Voltage, but unfortunately never drops to a float voltage to ease battery degration).
So I worked a bit with NodeRed and have a pretty good looking setup, which automatically lowers the max charge voltage when the system reaches the bulk voltage. As described, immediately after lowering the max charge voltage, my MP2 discharges the battery till it reaches the new voltage instead of just lowering the voltage and let the LIFEPO4 batteries lower the cell voltage on its own.
Can anyone help me tweaking it so the MP2 doesn’t discharge my battery?
Many thanks in advance!