DC To DC controler

[Voyager1]

View attachment 229094


Not that familiar with DC to DC controller, verifying the solar will charge both batteries and if running the alternator will charge both batteries also. Thanks

 

[heritage]

Running the alternator will charge both batteries, but the solar will only charge the house battery.

 

[dlochner]

Can't speak specifically to the Renogy DC to DC charger as I have a Victron Orion. The Orion will charge the start battery if the voltage on the DC+ bus is high enough. It doesn't matter whether the voltage is coming from the alternator, solar panels or a charger. The DC-DC charger needs to be configured to "turn on" when the voltage on the bus is greater than the resting voltage of the house battery. When the input voltage drops below that level the Orion disconnects so as to not drain the house battery. Works great on my boat.

 

[Stu Jackson]

Why isn't the alternator output connected to the house bank? Let the starter bank be fed thru the DC/DC unit.