Auxilliary Battery Switch

[luckyron1]

Randy, I think that is the way the system is designed. 'On' to charge both
banks, 'Off' to charge only the house batteries. A caution though, and I don't
know if this is just unique to our coach; there is a diode on the battery
isolator that controls the current between the 2 banks of batteries. We had 3
of them fail after prolonged periods in the 'On' position. Finally, we got
tired of replacing the diodes, and one time even the isolator, but it didn't
help. Now, we leave the switch in the off position and use a portable charger
and trickle charge the engine batteries while parked. In retrospect, and I'm no
electrician, it might be that the diodes that they were putting weren't strong
enough to handle it. Someone once told me that an 85 amp diode would probably
handle it.

Ron & Ruth in 2000 lxi in Branson

W> Hi Everyone,
>
> On my 2003 LX I have found if I leave the auxilliary battery switch in the off
position when the coach is parked the engine batteries lose charge or go dead.
Does anyone leave their auxilliary battery switch in the on position at all
times when parked? Is there any harm in doing it? Is there any chance of
overcharging the batteries? I travel alot and am not home everyday to check on
the coach so don't want to leave the switch on if it may harm the batteries. The
manual gives no indication whether to leave the switch on or off. I just
wondered what everyone else was doing.
>
> Thanks,
>
> Randy Merrill
> 2003 LX
> Ocala, FL
>