I've tried to dig into all questions and answer but it seems that my question is never asked before.
If the opposite please my apologise from now. Please send me the link of the previous post.
I'm moving from gel battery to DIY LiFePo4 batteries.
I've just bought a new charger, the Multiplus 12/3000/120.
I've already installed on board BMV712 and Venus OS on a Raspberry Pi3
When I'm in the marina, connected to the shore power, I would like to charge the battery up to 85% of their capacity and switch off the charger, but continue to use the shore power and the inverter if necessary (power off, more energy etc). Then switch ON again the charger at 40% of the batteries capacity.
As I can see the phisical remote can have only Charger ON or Charger/Inverter ON or all OFF.
I see that using the relay of my BMV712, at 85% of the capacity I can open/close the contact and with another bigger relay cut the shore power off, and on again at 40%. But with this setup when the shore power is off I shall would use only the inverter.
Is there any possibility to switch off only the charger function and keep the shore power?