<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by Displaced Connecticut Yankee:
Mine is a Class C, and I don't know how the Class A's are wired.
My wiring diagrams indicate that the converter charging output goes through my 12v Battery Disconnect relay (cuts house batteries on/off from the rv circuits) to the house batteries. If the engine is also running, the Battery Mode Solenoid (connects the house batteries in parallel with the vehicle battery when energized) closes, so the converter would be in parallel with the engine's alternator. If the engine is not running, holding the Momemtary switch would parallel the batteries, so the converter could (if electrically capable) charge all batteries at once.
This means that, if there is AC input (generator or shore power), the house batteries are charged. If, in addition, the engine is running, or the MOM switch is held down, all batteries are charged by the converter AND the alternator. I'm not sure that I like two simultaneous charging sources. </div></BLOCKQUOTE>
That's the way the Class As are wired also. (except as Tom said some later models have a TrickleStart charger/maintainer installed by Winnebago - the 2004 Sightseer's did not have this item though.)
However if the engine is running and shore power is connected, the alternator voltage (14 .4 volts) in my rig is higher than the converter voltage (13.6 volts) so the converter would not supply any current to the engine battery.
If I understand Terry (Pace89) correctly his engine was not running, he was connected to shore power and the generator was running but the shore power cord was not plugged into the generator. Since he does not have a transfer relay and has to unplug his shore power cord and plug it into the generator then the generator should not be charging anything.
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Clay WA5NMR - Ex Snowbird - 1 year, Ex Full timer for 11 years - 2004 Winnebago Sightseer 35N Workhorse chassis. Honda Accord toad.
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