House battery charging issue
We can normally run 4-5 days on the house batteries (two six-volt "golf cart" batteries in series, for 12 volts) on our 2006 Itasca Navion. We're just back from a week and a half trip (total mileage ...
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pianotuna wrote:
No, once the starter battery is full charging rates go down to more or less a trickle charge. That is just what the 'brains' of the charging system do. That is, unless the starter battery is in bad shape.
Don ... above is a clip from an earlier post of yours in this thread.
My (Winnebago) Itasca 24V's coach and chassis battery systems do not act this way: The engine battery can be charged right up to full, but if the coach batteries are low the alternator will still dump large charging currrents into the coach batteries. I've seen up to ~71 amps so far going into the coach batteries when they started out being about 50% discharged and I had the V10 engine idling.
I'm not sure how this is being accomplished, but I "think" that all 3 batteries (one engine 12V, plus two coach 12V) are all connected together in direct parallel by the solenoid whenever the ignition switch is on. This solenoid is probably the same one that is also switched on by the boost rocker switch on the cab's dash.
