hi
I have a 10 year old, 12v multiplus with inverter. I have just swapped my LA batteries for 2x 12v 200Ah LifePO4 batteries in parallel, each with a 100AMP BMS.
Using the V2 cable I have reconfigured the multiplus with the following settings.
https://photos.app.goo.gl/c2NyS5tVva36wdkXA
With the battery isolator switched on and a slight load all seems to work perfectly. However when I open the battery isolator switch (ie turn off the boat's house power ) the multiplus cycles on and off and at the same time switches on and off the 230v supply. The batteries are at or close to 100% SOC.
I switched the config to the Victron default LIfepo4 config and the issue is the same.
Here is a short video showing the cycling on and off of the multiplus. Note charging is cycling but also the 230volt mains supply is switched on and off.
https://photos.app.goo.gl/uHMQDZyMHLNhB5RHA
I'm not sure if this is helpful but this is the log of the BMS https://photos.app.goo.gl/qRuohrKCm6ZgGURXA
Please can anyone offer me some advice.
Thank you
Johnathan