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Old 08-29-2014, 08:52 AM   #1
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Battery Replacement?

We are ready to replace the batteries on our 2011 17 ft. Shockwave Toyhauler. Any tips on the best set up? We keep hearing about changing to 6 volt, but would we need 4 batteries then? We do about 50% dry camping a few times a year. If we replace the 12 volt any tips on the best available? Also what is the best way to store maintain the batteries when storing rv? Thanks!
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Old 08-29-2014, 09:01 AM   #2
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1) 2 6v batteries have way more reserve than 2 equivalent 12v.

2) Trojan was the ones I'm looking at, based on variety of posts on this forum recommending them.

I can't provide actual experience though, because everytime I think my battery's dead, it seems to be a fluke reading and is actually perfectly fine. So I've been having a hard time justifying making the switch.
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Old 08-29-2014, 09:21 AM   #3
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How often do you go out? 6v banks really are the best route to go if you spend a fair amount of time out on the road, but for most casual users they probably aren't too cost effective and require a bit of ongoing tlc to really justify the expense. JMHO

It's much easier to just fork out the $125 every 2-3 years for a decent 12v deep cycle battery that may not really get used all that often. That doesn't sting near as much as loosing a $600 set (4 x 6v cells) prematurely due to neglect.
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Old 08-29-2014, 09:25 AM   #4
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1) 2 6v batteries have way more reserve than 2 equivalent 12v.

2) Trojan was the ones I'm looking at, based on variety of posts on this forum recommending them.

I can't provide actual experience though, because everytime I think my battery's dead, it seems to be a fluke reading and is actually perfectly fine. So I've been having a hard time justifying making the switch.
Agreed. Trojan T105's are VERY widely used.
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Old 08-29-2014, 09:27 AM   #5
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Battery Replacement?

That is what I was thinking as we don't use that much. When parked is it best to keep batteries installed and rig plugged in to power?
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Old 08-29-2014, 09:39 AM   #6
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So far the interstates I use have held up to winter with no issues for a couple of years now.......I keep my rig plugged in, let the trickle charger keep batteries charged......I did add a insulation wrap to the battery box on mine, it is about 1/8" thick and lines the inside box....
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Old 08-29-2014, 09:40 AM   #7
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That is what I was thinking as we don't use that much. When parked is it best to keep batteries installed and rig plugged in to power?
You certainly can. If my rig was going to be parked for any length of time though, I would probably just disconnect it altogether, take it into the garage and throw it on a charger that will maintain a decent float.

I don't care much for keeping my rig powered unattended.. and worst case.. it's much cheaper replacing a stand alone charger than it is to have to replace a converter/charger out of my rig.
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Old 08-29-2014, 09:41 AM   #8
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Our rig is stored in a large metal shop. So are you saying that you keep rig plugged in to power and put a separate trickle charger on the batteries?
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Old 08-29-2014, 09:45 AM   #9
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No. I don't power my rig at all. Just physically disconnect the battery and put it on a trickle charger.
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Old 08-29-2014, 10:23 AM   #10
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First; 6v vs12v, there is no definitive data that says one is better than the other, only opinion. Thats fine, but to make the statement one is better over the other is not accurate.
Batteries are difficult to rate in that the stated specs may not live up to their real life performance. There is no reliabe independent ratings on deep cycle batteries in real world RV usage that I have ever encountered. If someone knows of independent ratings, please by all means chime in.

That being said, if you plan to be off the grid while in camping mode, buy the highest spec(amp hr, etc) deep cycle battery(s) that will fit in your storage compartment. Learn all about battery does and don'ts by researching here and other excellent sources on the net.

You will find, like I have, that a little knowledge goes a long way in getting the best performance (and life) for your specific application. Like; never discharge below 50%, batteries love to be at full charge when idled, etc. Hope that helps.
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