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Old 09-20-2007, 01:02 AM   #15
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Paul, I agree that you have a problem with the emegerncy start solenoid as it should be open unless activated. Either repair or replace. If you decide to leave it disconnected at the cable you will not effect anything else but will not be able to join both the house and chassis batteries without it. To check to se if the altenator is charging a battery bank, simply check the volltage of the bank before starting the motor. Recheck voltages after starting the motor; it should co up in value to about 13.8 to 14.2 volts. GOod luck and keep us posted.

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Old 09-20-2007, 04:02 AM   #16
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<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by jrnutpaul:
I do have a push button in the truck that says "emergency start" and if I push it when the truck battery is low than the MH battery will give me a jump start.

My problem is that the solenoid in the MH battery compartment is always "on" When I stop the truck and turn off all items in the MH except the LP detector (which draws 0.01 amps) this solenoid is still pulling 1.5 amps from the MH battery. After a couple of days the MH battery is about 4 volts and the truck battery starts to go down. After a few more days, both are dead and need recharging.

Now if this solenoid is only for the emergency start function than I have no problem in ignoring it and leaving it off line. If it is for something else, how do I find out for sure?

When I am driving down the road, My alt is supposed to charge the MH battery. How can I tell if it does? Can I start the truck,remove the MH battery cables from the battery and see if there is any voltage in the line when I connect the volt meter to the positive wire and a ground? This ought to tell me a charge is going to the battery, yes or no?

That is how I checked it in my 5th wheel and there was no solenoid in the line at the MH battery end. The battery charge was controled by a "Smart charge" in the control box.

Bottom line, I don't want to keep charging batteries at a camp site @ a State park, I want to boondock and know I have enough power for a couple of days before I have to turn on the generator.

Paul </div></BLOCKQUOTE>

I would move the feed to the solenoid to the run side of the key. That way when the key is off the solenoid would be off.I think that is what the solenoid is for, to isolate the batteries whn off.

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Old 09-20-2007, 01:41 PM   #17
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