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10-28-2010, 11:11 PM
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#11
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Guest
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Has everyone read their owner's manual?
Mine says:
If you are charging a remote (non-vehicle) battery, press the tow/haul mode button located at the end of the shift lever. This will boost the vehicle system voltage and properly charge the battery. If the trailer is too light for tow/haul mode, you can turn on the headlamps as a second way to boost the vehicle system and charge the battery.
So sayeth my 2008 GMC Sierra page 4-91 under Heavy-Duty Traile Wiring Harness Package
I do not have a manual for my 2002 Chevy Silverado because it was missing when I bought it used. So I do not know how that one is wired.
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10-29-2010, 12:10 AM
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#12
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Site Sponsor
Join Date: Jun 2003
Location: Santa Cruz County, CA
Posts: 2,405
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That is very interesting. We don't have the Heavy-Duty Trailer Wiring Harness Package, but we usually travel with our lights on, mostly because I like to be able to look back to check out the trailer running lights and see if they're on. If they're on, it means that the Bargeman connecter is still connected and not dragging on the ground ( this has happened before).
On the way down to Pismo, we charged the TM batteries up before we left, and ran the frig on 12V all the way down, which took about 3 1/4 hours including stops (but I didn't turn on the frig fan). When we got there, I checked the voltage inside at the 12V Winegard outlet before we connected to shore power, and our digital voltage meter read 12.8, which is about as fully charged as they can get.
I thought our Trojan T-105's (they're 6+ years old now) were dying, but now they seem to be fully charging again. I think that I may have filled up the cells with too much water (?) and I haven't filled them in a while, but the level now is just about 1/2" above the metal and they are getting (and staying) better charged.
__________________
'97 2720 & '01 Chevy Silverado 1500 4x4
2011 & 2017 Prii, 10'x18' & 10'x9' Tents
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10-29-2010, 01:06 AM
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#13
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Guest
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When was the last time you ran a desulfate and equalize charge on your batteries? I run it once a year.
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10-29-2010, 06:15 PM
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#14
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Senior Member
Join Date: Jul 2009
Posts: 129
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Quote:
Originally Posted by PopBeavers
Has everyone read their owner's manual?
Mine says:
If you are charging a remote (non-vehicle) battery, press the tow/haul mode button located at the end of the shift lever. This will boost the vehicle system voltage and properly charge the battery. If the trailer is too light for tow/haul mode, you can turn on the headlamps as a second way to boost the vehicle system and charge the battery.
So sayeth my 2008 GMC Sierra page 4-91 under Heavy-Duty Traile Wiring Harness Package
I do not have a manual for my 2002 Chevy Silverado because it was missing when I bought it used. So I do not know how that one is wired.
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Hello Wayne,
I don't have such a button in my TV(2005 Toyota 4Runner). Do you use yours and does it increase your charging in the TM. Can you measure the increase?
Always curious about new features!
Take care,
Phil
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10-29-2010, 06:29 PM
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#15
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Senior Member
Join Date: Jul 2009
Posts: 129
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Quote:
Originally Posted by ShrimpBurrito
Phil - Well with that kind of battery capacity, you will be fine. I would have chosen your route with those beasts. Where do you have them mounted? Do you have any pics by any chance?
Dave
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Dave,
I have a 2008 2720TM. I mounted the batteries outside in the steel angle cage just forward of the front shell. This is where the one battery supplied with the TM was mounted. The two new batteries just fit in the factory cage. I did have to bolt a board to the underside of the cage to give added support and strength to the cage.
I don't have any good pictures of them - just not something I have pictured. I would be happy to take some if you are really interested.
Take care,
Phil
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10-29-2010, 06:32 PM
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#16
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Senior Member
Join Date: Jul 2009
Posts: 129
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Quote:
Originally Posted by PopBeavers
When was the last time you ran a desulfate and equalize charge on your batteries? I run it once a year.
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Wayne,
I have not equilized my batteries as yet. They are less than a year old.
Take care,
Phil
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10-29-2010, 06:49 PM
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#17
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Site Sponsor
Join Date: Jul 2006
Location: Sunny Beaches of Los Angeles
Posts: 3,274
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Quote:
Originally Posted by Philip
I don't have any good pictures of them - just not something I have pictured. I would be happy to take some if you are really interested.
Take care,
Phil
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Hi Phil,
Pictures would be great when you get a chance. Not rush. It's something I might consider doing at some point.
Thanks,
Dave
__________________
2000 2720SL & 2007 3124KB
2005 Toyota Sequoia
Twin Battle Born 12v 100Ah LiFePO4 (BBGC2) batteries, 300W solar on rear shell, Link 10, Lift kit, Maxxis 8008 225 75/R15 E tires
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10-29-2010, 08:04 PM
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#18
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Site Team
Join Date: Feb 2003
Location: The mountains of Scottsdale, AZ, and the beaches of Maine
Posts: 10,180
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Quote:
Originally Posted by PopBeavers
If the trailer is too light for tow/haul mode, you can turn on the headlamps as a second way to boost the vehicle system and charge the battery.
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Interesting thought. My Explorer does not have a Tow/Haul button, of course. I wonder if simply turning on the lights would boost the charge rate from my Explorer to the TM. I can almost talk myself into it ... I'll try it when I get a chance, and post the result.
Bill
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10-29-2010, 10:25 PM
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#19
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Guest
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Quote:
Originally Posted by Philip
Hello Wayne,
I don't have such a button in my TV(2005 Toyota 4Runner). Do you use yours and does it increase your charging in the TM. Can you measure the increase?
Always curious about new features!
Take care,
Phil
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I use tow/haul all the time when towing because:
1. it makes better choices when shifting than it does if I do not use it.
2. Besides automatically shifting upwards as I accelerate, as all automatic transmissions do, it also will automatically down shift when I apply the brakes.
I have never measured the voltage at the connector to see if it is different. maybe this weekend, now that I am also curious how much it increases.
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10-30-2010, 07:05 AM
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#20
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Senior Member
Join Date: Jul 2009
Posts: 129
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Quote:
Originally Posted by ShrimpBurrito
Hi Phil,
Pictures would be great when you get a chance. Not rush. It's something I might consider doing at some point.
Thanks,
Dave
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Dave,
Will do, when I get a chance.
Take care,
Phil
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