Hi,
i have a Multiplus 2 + Pylontech-Battery who is managed by a Cerbo GX.
Also i have a go-e Controller who manages a go-e Charger.
Both do their job quite nice, even they do not talk with each other.
PV-Surplus is charged into car - cool.
But sometimes I simply must charge the car even no PV-Power is there… and then the poor Cerbo sees that and applies maximum Powerassist → sucking home-battery empty, wasting energy.
Yes, i can put Multiplus 2 into “charger only” via the app.
Guess how often my wife turns on the go-e-Charger and turns of the Multiplus 2 (and reverses laeter)?
Nerd-solution1: Home Assistant… would work as ChatGPT claims - after 4h solving one after the other problem - i gave up.
Nerd-solution2: MQTT … install a Broker to let go-e and victron talk + skript … again programming skripting in Linux-world - No.
Nerd-solution3: ChatGPT suggested to use one of the Digital IO of Cerbo… cool until he told me that i need to program just a little skript to create the option “turn to charger only”.
Well i learned 4-5 programming-languages… do i want to drill into another - no.
So i thought stupid simple hardware can do the job… 10€ for a simple Current-switch (insulated, and you can select at how many amps it does switch) and then… well the Multiplus itself does have a very simple main-switch (0 = off, 1 = on, 2 = charger only) if you attach to that properly a relais… then the charging of the car (+6A on L1) let the current-switch turn on the relais and set the multiplus 2 into charger only. (Yes that is not fancy.)
But searching the internet → i did not find anything on that… is my idea so strange?
Any suggestions highly welcome.
Regards,
Thomas