asked
How do I charge my start battery automatically , when my domestic battery (LIFePO4) is fully charged by my solar panels via MPPT.
A little bit more context would be helpful. That said you may find a cyrix battery combiner or small dc-dc trickle charger may meet your needs. Really depends on what you are trying to achieve,
I am just trying to charge my start battery (lead accid) with my solar system, when my domestic battery (LIFePO4) is fully charged, and this automatically. I have a orion to charge my domestic battery via start battery when engine is running. Is there a possibility that I can take a signal or something else from shunt or MPPT to start another orion or something else for charging my start battery without placing a separate solar system with another MPPT.
Thanks for answering,
greetings bram.
in a similar post @kevgermany recommended that Votronic make a trickle charger to keep your starter battery topped up from the auxiliary system and that a second Orion for this is overkill.
Hello @Bram Peeters . If you use an Orion DC-DC charger you can control when it activates by using a BMV 712 or a Smartshunt. You could set a SOC to close a relay and use that relay contact closure to tell the Orion to activate through its remote terminal. The BMV or Smartshunt are programmed via the Bluetooth and the Orion can be interrogated via Bluetooth also. If using the smartshunt it would need to be connected to a CerboGX to get access to relay contacts..
