When on shore power, the multiplus builds up the amps for charging and then cuts out. Has been running without issue for 4 years with 0 setting changes.
Last year I replaced the 4 X 110AH lead acid batts with 1 X 460AH lithium from Fogstar Drift. Again this has been running with zero issues until now and Fogstar told me that there was no dip switch configuration change requirement in the multiplus for their battery.
Issue has been present following a recent trip where we plugged in to shore power and when I woke up the following morning, the 240 was passing through but not charging.
Now on shore power at home, I’ve tested multiple different sockets but still getting the same issue. The screen recording below illustrates what is happening;
Below is a screenshot of the inverter showing up to date firmware together with model
If you recently updateded the firmware the charger will be disabled. You need a VE.Bus MK3 USB cable to download the config file and adjust the settings with veconfig. I dont think you can do that with the dongle. Do you have VRM, gx device or anything like that?
And a windows PC. I think you are able to get the config file with an android phone I think I helped someone before they provided the file I made the changes they uploaded it using the USB cable.
Unless the firmware has updated in the background I haven’t performed a firmware update.
Also, it’s not like the battery charger is completely disabled. It builds up a hum as you see the amps being delivered to the battery in the screen recording building up and then it drops to 0, the process starts again then an audible click and the MP flicks itself to an “off” state.
I’m going to try a different battery on there tomorrow to see if the BMS on the Fogstar is disagreeing with the MP.
The dongle is very limited in terms of setup changes, the only other device I have is the BMV in network with the MP and the solar charge controller.
I have a Windows laptop but I may need some basic education as to what is required in terms of software to make the relevant changes.
In the meantime I disconnected the dongle and reconnected it. It then gave me errors it wasn’t previously delivering;
Temp warning
Voltage ripple
Made me check the connections again which visually looked fine when I checked them first but the earth back to the MP had pulled loose inside the heat shrink sheath where there was limited contact causing resistance, heat and the voltage ripple from loose connection.
New cable on order but I will still plug in to the MP to change the settings to something more suited to the lithium.
