Quote:
Originally Posted by flying kurmaster
On my KURBMASTER camper I have wired all my interior lights and accesories to a deep cycle battery and was planning on keeping the starter battery as it is still good which is not deep cycle. I bought a marine switch with four position dial, off- 1- both- 2 . I plan on dash mounting it. I was thinking that this would be ideal as I could use the altenator to charge the house battery when I was on the move (one of these days I will get solar panels as well) I read most of this thread and it seems that I will able to save some fuel if I turn it to off. My question/concern... is there any chance that I can damage my altenator by switching while engine is running. The van is a 1986 so no ECU but it has electronic ignition. no electric fan, water pump or gaz pump. Also should I avoid charging them both at the same time as they are different types of batteries and could I do this if they were both deep cycle. Thanks....
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A surge could blow the diodes in the alternator.