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  #13  
Old 05-02-2013, 08:09 AM
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Re: Charging trailer Battery

I did check the voltage at the 7 pin, it was 12v, but what started all this is the fact its not isolated from the main battery, and when i connected it up with the factory wiring the ground on the trailer was getting warm, and in gerneral the batteries are charged before i leave but if im out for the weekend then i cant recharge them and on a good day can drain them to 10V, I'm charging 22v 6000mah lipo packs and then with radio speakers and inverter it goes quicker than you would think. But its almost done i ran the wires, fuse's and isolater relay last night. Now just trying it figure out my connection to the trailer. Im thinking of using some RC battery connectors, there good to 100amp and can take 6g wire. That way i still have all factory wires in place.
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  #14  
Old 05-02-2013, 08:19 AM
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Re: Charging trailer Battery

Quote:
Originally Posted by nikon858 View Post
Read through this thread. Same thing your trying to do.


Battery set up question [Archive] - Expedition Portal

If you don't deplete the batteries too much the factory wiring or the 8ga i originally suggested should be fine. But if your depleting the batteries quite a bit and want them to charge up faster go with the heavier wire.
Thanks for the link, Funny after our exchange yesterday thats what i ended up doing,
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  #15  
Old 05-07-2013, 12:55 PM
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Re: Charging trailer Battery

Deep Cycle Marine style batteries will not give you thier best performance unless you do put them on a conditioning charge at some point. Higher amperage charging WILL get you to 60 or 70% of the battery capacity fairly quickly but those batteries need 2amp charge for many hours to get from 90% to 100% (and a little more between 70% and 90%). Usually the auto parts specialty stores will have a nice conditioning charger that you should put on those batteries regularily. Even if you get most of the voltage and amperage from your battery bay on your truck, it will not give you a proper charge in the time allotted.

I am currently driving a 2011 Durango (Dealership Loan) waiting for my 2014 Jeep GC Diesel to come in... I have backed it up to a completely dead trailer and powered the hitch lift, fridge etc to get going and got a decent 60% charge on the batteries in about 4 hours of driving so the power is there when I have needed it (I don't know all the wiring specs on the Durango as far as gauge etc.) I know when I have camped previous years in places without plug in power I definately noticed the difference though putting the trailer on a proper conditioning charge a few days before vs not. IMO you will get better bang for the buck investing in a good charger.
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Old 05-22-2013, 09:54 PM
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Re: Charging trailer Battery

Quote:
Originally Posted by Willx View Post
Deep Cycle Marine style batteries will not give you thier best performance unless you do put them on a conditioning charge at some point. Higher amperage charging WILL get you to 60 or 70% of the battery capacity fairly quickly but those batteries need 2amp charge for many hours to get from 90% to 100% (and a little more between 70% and 90%). Usually the auto parts specialty stores will have a nice conditioning charger that you should put on those batteries regularily. Even if you get most of the voltage and amperage from your battery bay on your truck, it will not give you a proper charge in the time allotted.

I am currently driving a 2011 Durango (Dealership Loan) waiting for my 2014 Jeep GC Diesel to come in... I have backed it up to a completely dead trailer and powered the hitch lift, fridge etc to get going and got a decent 60% charge on the batteries in about 4 hours of driving so the power is there when I have needed it (I don't know all the wiring specs on the Durango as far as gauge etc.) I know when I have camped previous years in places without plug in power I definately noticed the difference though putting the trailer on a proper conditioning charge a few days before vs not. IMO you will get better bang for the buck investing in a good charger.
I do uderstand what your saying, and i do charge them when im at home i have a digital charge that would scare most people. but during my weekend travels i can't so I need to put juice back in, even if only 60 or 70% is greatthat alot of mAh with dual batteries. i just got back from a 10 trip and we used the batteries all day everyday and with the new setup and heavy gauge wire i was able to get them charge up when needed buring only a little fuel.
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