It should. But it isn't the fastest charge you'll ever see. It's a long wire run and (at least in my truck) there is not a whole lot of alternator capacity left over after all the gadgets are running (GPS/Sirius/Celly...).
If you stay hitched up overnight it would be wise to disconnect the umbilical. There's supposed to be a diode in modern tow vehicles which prevents your coach drawing overnight from the truck batteries if you don't have a 120V hookup. I just disconnect as a matter of caution.
Due to the marginal ability of alternators to do much more than cover tow vehicle needs and the distance back to your converter & battery, the ability of the tow vehicle to top off your battery is very limited and may take several hundred miles of driving to do this. I would reference posts by roadkingmoe and 2airishuman on this topic but that's a difficult search. I just don't rely on it ... again, as a matter of prudence.
Discharging a battery below 50% will shorten its lifetime.
__________________ . BobStream
...You really don't know someone 'til you've had recess with them. ...Alex Ziton, age 8
Make sure all your fuses in the 12 volt electrical panel are good...and if you have any circuit breakers, check them also, to make sure they are still good...
You can 'test' to see if you are getting 12 volt charging voltage by:
1. with a Dc voltmeter (digital is preferred) check the voltage across the battery terminals - at the battery - with the TV engine NOT running - note the voltage.
2. fire up the TV and again check the voltage at the trailer's battery...see if the voltage has risen from the previous reading...you'll need about 13.7 volts to get any meaningful 'charge' from the TV.
__________________ Let us not be too particular; it is better to have old secondhand Airstreams than none at all. Mark Twain, updated (org...diamonds)
AIR # 11135
1978 - 28 ft Ambassador (Blue Halo)
2001 - Ford Excursion V-10 4x4
If you stay hitched up overnight it would be wise to disconnect the umbilical. There's supposed to be a diode in modern tow vehicles which prevents your coach drawing overnight from the truck batteries if you don't have a 120V hookup. I just disconnect as a matter of caution.
Due to the marginal ability of alternators to do much more than cover tow vehicle needs and the distance back to your converter & battery, the ability of the tow vehicle to top off your battery is very limited and may take several hundred miles of driving to do this. I would reference posts by roadkingmoe and 2airishuman on this topic but that's a difficult search. I just don't rely on it ... again, as a matter of prudence.
Discharging a battery below 50% will shorten its lifetime.
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Hi, check your fuses, some GM products have a dummy fuse in the fuse panel for your charge wire.
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