Starter/House Battery Setup Question

[Fred Mc]

I have the 3 starting batteries in a new compartment closer to the engine. They have their own cutt off switch. I want to put a deep cycle battery in the old compartment. My coach is mostly 12 volt and I don't have an inverter. This deep cycle battery would be in parrallel with the 3 starting batteries, however, when I disconnect the starting batteries the coach would continue to draw off the deep cycle.Of course when I went to start the deep cycle would work along with the starting batteries.



Is there a drawback to this setup.

Thanks

Fred Mc.

[FloridaCliff]

Fred,

I would add a 12 vdc charger for the one house battery.

This way you can keep it charged while on shore power.

Or get a 110 to 12vdc converter to supply your 12 vdc needs when on shore power.

It really is going to depend on how You use the 12 vdc.

Cliff

[Fred Mc]

I have a 110 to 12 v converter and also a 12 v charger. What I'm wondering about is it ok to charge the deep cycle battery along with the start batteries going down the road?

Thanks

Fred Mc.

[oldmansax]

 Our coach is 24 volt so we could not use the coach batteries to supplement the house setup. we have an auxiliary 12 volt alternator installed where the bus A/C compressor used to be. there is a 12 Volt continuous duty solenoid installed between the alt & the house batts and controlled from the drivers console. I can switch it on when I am driving & not using the 110 V Onan. I works very nicely. I usually don't have to use the Onan very much in the winter.