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Old 10-11-2013, 05:23 PM   #11
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If ya use an automotive charger, can ya leave the batteries connected to the camper while powering the camper and charging the batteries?
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Old 10-11-2013, 06:15 PM   #12
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Originally Posted by rotorhead1250 View Post
If ya use an automotive charger, can ya leave the batteries connected to the camper while powering the camper and charging the batteries?

I use my disconnect switch when using a dedicated 3 stage charger (like Ship-n-Shore). If you do not have a disconnect, I would remove the ground wire from the battery.
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Old 10-12-2013, 08:37 AM   #13
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Originally Posted by rotorhead1250 View Post
If ya use an automotive charger, can ya leave the batteries connected to the camper while powering the camper and charging the batteries?
I never disconnect batteries to charge.
In fact I've "dual charged" by having my trailer plugged into a generator
and used a stand alone 25 amp automatic charger at the same time.
The onboard charger and the standalone both put out less charge
when doing this but the total is more than either one by its self.

This is just me- how I do it.
YMMV.
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Old 10-17-2013, 06:39 AM   #14
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Check the owners manual for your TV. My Chevy Avalanche has a "charge" line on the 7 pin connector like most or all do. But the owners manual says you have to connect the wire under the hood. It also has a fuse that I had to replace once. It further says that if you use the tow-haul mode it runs the alternator at a slightly higher RPM (in other words the engine idle speed is kept higher) to provide a higher charge current on the charge line. When we had a TT it did provide enough to charge the battery to about 90% in a 5-6 hour drive.
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Old 10-17-2013, 08:40 AM   #15
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The TV manual does not mention the power circuit on the 7 pin connector. However, I did locate the fuse for this circuit and it indeed needed to be replaced. Well, I'll know within a week how well the TV tops up the batteries.
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