scrubjaysnest wrote:
MrWizard wrote:
Not that controller
Not in that manner, it would require jumpering the batteries together
Use a dual output controller
Or
Like many of us, some kind of trick l start
That siphons a small amount of power in a one way connection from house batteries to keep the engine batteries topped off
Not sure I understand the comment about jumping the batteries together.
This is something already done any time the alternator output goes above some voltage set point, your on shore power and the converter output goes above the same set point, or your on the ginny and the converter output goes above the same set point. Set point voltage for ours is 13.2 volts after 2 1/2 minutes at or above that voltage.
Don't know if the OP's rv is set up that way or not.
NO ..NOT always
alternator to engine thru a diode isolator is ONE-WAY only
no charge back from house to engine when parked
the BIRD..etc
are bidirectional relays, that do engage and charge engine/chassis After the house battery level reaches a set point
NOT every RV has this
and those that do it does NOT make any difference what is charging the house, shore, generator, solar, portable charger
it will automatically engage and NOTHING else is needed
and the OP question would be a moot point
i'm thinking his chassis battery does NOT stay charged while camping or in storage
he is adding solar and wants to make extra use of it
that controller does not have a separate charge line for dual charging of two different battery systems
a trik l start is the best option
jumpering, would make all batteries ONE system
Not the ideal option, but the only way, with out a BIRD or trik l start
OR wiring in another relay to be controlled by the MPPT 60 controller
that relay would connect the two systems AKA jumper them together
