1981 12' Dolphin TT Moving Battery to Tongue - Fiberglass RV



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Old 12-09-2016, 11:13 AM   #1
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1981 12' Dolphin TT Moving Battery to Tongue

I am wanting to move my battery to the tongue from the forward compartment hatch for more storage room and better battery ventilation, the battery cables that were existing are just cheap looking cables with the 3/8 hole ends. I bought a battery box and need to mount it to the tongue. My question is should I use a specific type of battery cable for going to the outside on the tongue? any suggestions?
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Old 12-09-2016, 12:04 PM   #2
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Nice heavy gage jumper cables will work. Just cut the clamps off and put connectors on.
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Old 12-10-2016, 10:04 AM   #3
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I have considered using jumper cables for this as well, but noticed no other trailers use such heavy wire. In fact most seem to use #10 wire from tongue to interior distribution box and put in a fuse on the positive wire near the battery. Would this not be sufficient given the relatively low amperage draw?
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Old 12-10-2016, 11:13 AM   #4
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Battery pwr connection

Quote:
Originally Posted by ckayaker View Post
I have considered using jumper cables for this as well, but noticed no other trailers use such heavy wire. In fact most seem to use #10 wire from tongue to interior distribution box and put in a fuse on the positive wire near the battery. Would this not be sufficient given the relatively low amperage draw?
Agree the pwr at trailer plug from our car to trailer is an #8 both sides but #10 should work as well, is is a very flexible wire used also Yellow connection is to the back up lights at car, looking for a light that will go well with our standard cake lights at back will mount just below brake lights
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Old 12-10-2016, 11:13 AM   #5
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First I've heard of the Dolphin TT.
Got any pics to share?

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Old 12-10-2016, 11:29 AM   #6
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Battery pwr connection

Quote:
Originally Posted by ckayaker View Post
I have considered using jumper cables for this as well, but noticed no other trailers use such heavy wire. In fact most seem to use #10 wire from tongue to interior distribution box and put in a fuse on the positive wire near the battery. Would this not be sufficient given the relatively low amperage draw?
Agree the pwr at trailer plug from our car to trailer is an #8 both sides but #10 should work as well, is is a very flexible wire used also Yellow connection is to the back up lights at car, looking for a light that will go well with our standard cake lights at back will mount just below brake lights back up lights will be great to have.
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Old 12-10-2016, 11:33 AM   #7
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With DC current the ideal situation is for the batteries to be connected as close together as possible with the least resistance as possible i.e.. bigger wire. My opinion is that the farther the batteries are apart the bigger the wire you should use to maximize your ability to keep a balanced charge on both. Without knowing how you are charging these batteries and where the charger is located it is hard to make a recommendation. If you ever plan to use an inverter especially a large one you should use larger wire and fuse accordingly.
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Old 12-10-2016, 11:36 AM   #8
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Just sent a message to air works about the 12 v air unit
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Old 12-10-2016, 11:53 AM   #9
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I believe he has a single battery on that trailer. But I still like the idea of using #8 wire to minimize resistance.

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Old 12-10-2016, 01:44 PM   #10
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My mistake. I thought he was adding a second battery
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