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Originally Posted by Oneilkeys
I have always wondered if it is OK to have the engine running if you try to start the generator using the engine battery. Usually you want to do that when you are out in the middle of nowhere and I am always afraid that I will run the engine battery down, not start the generator and then not be able to start the engine. If you have the engine running and the generator starts, you will have two charging systems charging the batteries at the same time - not a good thing. However, since there is a built in delay in the generator after it starts and before it turns on the 115v power, it seems to me that you could have the engine running, start the generator and then turn off the engine before the generator turns on its charging system. I have been too chicken to try it and prefer to start the engine, charge up the house batteries a little and then try to start the generator. Any comments?
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Interesting point--I've already posted today about someone asking if its ok to run two charging systems on one battery: my thought was that one or the other would break--however, I often drive down the road with both running which means that the converter charger is charging and the alternator is charging.
Perhaps in that instance the BIRD (in your case) opens up disconnecting the two systems preventing the chargers from fighting? (Mine has the RV Custom Products board which would do the same thing)
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