| Couple of electrical questions [message #95123] |
Mon, 09 August 2010 14:51  |
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JShot
Messages: 485
Registered: October 2006
Location: NW Ohio
Karma:
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Senior Member |
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Asking these for me, but also think there are a lot of lurkers that don't ask questions - maybe these can give them some insight on how we do the coaches -
1. Going down the road with the generator running and the roof a/c on because the dash air doesn't work (well). With the generator going, 110v is supplied to the PD converter/charger, which in turn, because of a combiner across the isolator, is charging the engine starting battery (I know, don't get on me about this setup!)
But the alternator is also charging the starting battery. So does the battery get charged by both systems in this case?
2. When the coach is home and plugged into shore power, the above setup keeps the engine starting battery charged up and supplies power to the interior 12v lights. If you unplug the coach after a couple hours, the combiner cycles on and off every few minutes for a while (if you still have a 12v light turned on, it goes on and off with the cycling). What's happening here?
At the moment, the ONLY battery in this coach IS the starting battery.
Inquiring minds want ......
John
John Shotwell
Ridgeville Corners, OH
78 Royale Center Kitchen
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